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Ammonal

Ammonal is a binary high explosive composed of ammonium nitrate as the primary oxidizer and finely powdered aluminum as the fuel, typically blended in a mass ratio of around 95:5 to achieve detonation velocities exceeding 4,000 m/s.^[1]
This non-ideal explosive, characterized by its sensitivity to confinement and flow divergence during detonation, produces enhanced brisance and heat output from the aluminum's combustion, making it suitable for applications requiring powerful fragmentation and cratering effects.^[2]^[1]
Originally formulated in the early 1900s for commercial blasting in mining and quarrying—where its lower cost relative to TNT offered economic advantages—Ammonal gained military prominence during World War I, when the British Army employed it in massive underground charges to undermine German positions.^[3]^[2]
Notable deployments included the 18.5-ton Ammonal charge at Hawthorn Ridge Redoubt during the Battle of the Somme on July 1, 1916, which formed a crater over 30 meters deep but inadvertently alerted defenders due to premature visible venting; and larger mines at the Battle of Messines in 1917, where charges up to 45 tons contributed to seismic shocks registering on instruments in Switzerland.^[3]^[4]
Postwar, its use declined with the rise of safer, more stable alternatives like ANFO, though variants persist in specialized demolition and research contexts owing to their tunable energy release.^[5]^[6]

Composition

Basic Formulation

Ammonal's basic formulation consists of ammonium nitrate (NH₄NO₃) as the primary oxidizer and fine aluminum powder (Al) as the fuel and sensitizer, mixed in a binary composition without additional explosives or binders.^[7] Typical ratios range from 80–95% ammonium nitrate to 5–20% aluminum by weight, selected to balance detonation velocity, brisance, and cost; lower aluminum content (e.g., 5%) suits mining for controlled fragmentation, while higher (e.g., 20%) boosts blast energy in military contexts via the exothermic oxidation of aluminum to alumina.^[8]^[7] The ammonium nitrate is usually in prilled or powdered form for uniform mixing, with aluminum particle size under 10–20 μm to ensure rapid reaction initiation upon detonation.^[9] This simple mixture relies on the chemical incompatibility of components for insensitivity under normal conditions but high reactivity under shock, distinguishing it from sensitized variants.^[1]

Variants and Modifications

A primary variant of ammonal incorporates trinitrotoluene (TNT) to enhance brisance and detonation velocity, forming what is known as T-ammonal; this modification addresses limitations in the shattering effect of basic ammonium nitrate-aluminum mixtures by leveraging TNT's higher explosive power.^[10] Early formulations for mining, developed in England around 1915, typically comprised 65% ammonium nitrate, 17% aluminum powder, 15% TNT, and 3% charcoal, with the charcoal serving to improve ignition reliability and mixture homogeneity.^[11] Commercial variants often derive from aluminized amatol, blending ammonium nitrate, TNT, and aluminum powder; an 80/20 amatol base (80% ammonium nitrate, 20% TNT) with added aluminum exemplifies this approach, yielding explosives like Ammonal B or Ripping Ammonal tailored for rock fragmentation in quarrying.^[12]^[10] These modifications prioritize cost-effective sensitization while maintaining relative stability, though they require careful proportioning to avoid reduced performance from excess aluminum, which can lower detonation pressure if exceeding optimal levels around 10-20% by weight.^[13] Further adaptations in research include substituting aluminum with aluminum-magnesium alloys to boost energy release and detonation characteristics, as alloy powders exhibit higher reactivity in ammonium nitrate mixtures, potentially increasing explosion heat and velocity over pure aluminum variants.^[2] Some industrial formulations add waxy binders to mitigate moisture absorption, a common issue with hygroscopic ammonium nitrate, thereby extending shelf life in mining applications without altering core explosive yield.^[5]

Physical and Chemical Properties

Detonation Characteristics

Ammonal, a mixture primarily of ammonium nitrate and aluminum powder, detonates as a non-ideal explosive with performance highly sensitive to charge diameter, density, and particle size distribution. Detonation velocities measured in cylinder expansion tests range from 2.6 to 3.8 km/s, increasing with larger charge diameters due to reduced flow divergence effects; for instance, tests in 50.8 mm inner diameter cylinders yielded 3.82 km/s, compared to 3.52 km/s in 25.4 mm cylinders.^[9] These values reflect partial inert behavior of aluminum particles in the initial reaction zone, with subsequent afterburning contributing to expanded wall velocities up to 0.925 mm/μs at larger radial displacements.^[9] Detonation velocity also varies with ammonium nitrate grain size and aluminum content; finer AN grains (<100 μm) achieve up to 3.07 km/s at densities of 0.89 g/cm³, while coarser grains (400–710 μm) yield as low as 1.92 km/s at 0.82 g/cm³.^[14] Adding 5–15% aluminum to AN increases velocity modestly, from 2.64 km/s (pure AN) to 2.96 km/s at 10% aluminum and 0.82 g/cm³ density, though higher aluminum fractions (e.g., 7% flaked) can reduce it due to agglomeration effects.^[15] Detonation pressures for ammonal compositions typically fall between 1.16 and 1.56 GPa, peaking at intermediate AN grain sizes (200–300 μm) owing to optimal reaction kinetics and gas production; finer grains reduce pressure to 1.16 GPa via altered detonation products.^[14] The inclusion of aluminum enhances brisance relative to non-aluminized ammonium nitrate explosives like ANFO, as the metal's exothermic oxidation post-detonation wave elevates temperatures and fragment velocities, though initial brisance is lower than high explosives like TNT due to the slower-reacting aluminum phase.^[9] Gurney energies from cylinder tests range from 1.59 to 1.97 kJ/g, underscoring ammonal's utility in applications requiring sustained blast effects over sharp shock.^[9]

Stability and Sensitivity

Ammonal exhibits relatively low sensitivity to impact, shock, and friction, characteristics primarily derived from the stability of its ammonium nitrate component, rendering it safer for handling than primary explosives or highly sensitive secondaries like tetryl. Impact sensitivity, assessed via drop hammer tests, yields a 50% initiation height of 76 cm to over 320 cm for loose powder formulations, with pelleted variants showing heights exceeding 320 cm; this positions Ammonal as less sensitive than tetryl and roughly equivalent to TNT.^[7] Contaminants such as metals or moisture do not substantially elevate impact sensitivity, and added moisture in fact enhances insensitivity by increasing the required drop height beyond 320 cm.^[7] Friction and shock sensitivities remain low, necessitating a detonator or booster—such as fulminate—for reliable initiation rather than propagation from mild mechanical insult alone.^[16] Electrostatic discharge sensitivity requires a minimum energy of approximately 0.5 joules for 50% initiation probability, rendering it less prone to accidental sparking than PETN but more so than tetryl under optimal spark gap conditions of 50 mils at 4.0 kV.^[7] Thermally, Ammonal demonstrates stability suitable for storage and transport, with cook-off temperatures initiating around 700°F and vacuum stability tests showing rapid decomposition only above 250°C; however, ammonium nitrate's polymorphic phase transitions, particularly near 32°C, can introduce variability in performance, though not directly increasing sensitivity.^[7] Overall, these properties contributed to its adoption in large-scale military applications despite inherent batch-to-batch inconsistencies.^[7]

Historical Development

Origins and Early Experiments

Ammonal, an explosive mixture combining ammonium nitrate as an oxidizer with aluminum powder as a fuel, originated in England in 1915 for mining applications.^[11] This development addressed the need for a high-performance, cost-effective blasting agent, leveraging ammonium nitrate's availability and the energy release from aluminum combustion to achieve greater brisance than ammonium nitrate alone.^[11] Early formulations typically comprised 65% ammonium nitrate, 15% trinitrotoluene (TNT), 17% aluminum powder, and 3% wax to improve homogeneity and detonation reliability.^[11] These mixtures were tested in controlled mining blasts to evaluate detonation velocity, power output, and sensitivity, confirming superior fragmentation compared to traditional black powder or dynamite.^[11] The addition of TNT served to enhance initiation and stability, while aluminum increased the heat of explosion, making ammonal suitable for hard rock excavation.^[11] By early 1916, British military engineers adapted ammonal for tunneling and mine warfare during World War I, conducting initial experiments with large-scale charges under enemy lines.^[3] The first significant deployment occurred at Hawthorn Ridge during the Battle of the Somme on 1 July 1916, where approximately 18,000 kg of ammonal detonated in an underground mine, creating a crater over 30 meters deep and displacing vast amounts of earth.^[3] These experiments demonstrated ammonal's effectiveness in confined spaces but also revealed challenges such as variable detonation due to charge size and confinement, informing refinements for subsequent operations like the Messines mines in 1917.^[3]

World War I Adoption

Ammonal, initially developed for civilian mining applications in England around 1915, saw military adoption by the British Army for tunnel warfare explosives from early 1916 onward.^[11] Its selection stemmed from desirable properties including high brisance and effectiveness in confined detonations, making it suitable for underground charges in trench stalemates.^[17] British tunneling companies, including Royal Engineer units, integrated ammonal into operations to counter German mining efforts and disrupt enemy positions.^[18] The first documented combat use occurred at Hawthorn Ridge Redoubt during the Battle of the Somme on 1 July 1916, where approximately 40,000 pounds of ammonal were detonated in a single mine, creating a crater over 30 meters deep.^[3] This early application highlighted ammonal's capacity for massive disruption, though premature detonation timing drew tactical criticism for alerting German forces.^[19] Subsequent refinements led to widespread employment, notably in the Battle of Messines on 7 June 1917, where British forces exploded 19 ammonal-filled mines totaling 454 tons beneath German lines, generating seismic effects registered as far as 150 kilometers away and inflicting around 10,000 casualties in an instant.^[20] These charges, often mixed with gun cotton for enhanced reliability, represented the war's largest coordinated mining operation.^[21] Ammonal's role extended to other fronts, including the Canadian Corps' use at Vimy Ridge on 9 April 1917, where 25-pound bags were incorporated into demolition charges.^[22] Its aluminum content boosted detonation velocity and fragmentation effects compared to pure ammonium nitrate mixes, aiding in crater formation and shockwave propagation through soil.^[17] By war's end, ammonal had become a staple in British mining doctrine, with production scaled to meet demands for both offensive mines and improvised trench weapons, though handling risks from sensitivity prompted strict protocols.^[23] Allied forces valued its cost-effectiveness amid TNT shortages, yet post-battle analyses noted inconsistencies in performance due to moisture absorption in damp tunnels.^[3]

Post-War Decline and Legacy

Following the Armistice of 11 November 1918, Ammonal's military applications declined precipitously, as the trench-bound tunneling warfare of the Western Front gave way to more mobile conflict doctrines in interwar military planning and subsequent wars, eliminating the need for large-scale underground mine charges. Industrial use in quarrying and mining continued sporadically into the 1920s, valued for its high shattering power from the aluminized formulation, but high production costs—driven by aluminum's expense and scarcity post-war—and handling sensitivities limited its adoption compared to simpler nitrate-based blends.^[11] By the mid-20th century, Ammonal was largely supplanted in civilian blasting by economical alternatives like ammonium nitrate-fuel oil (ANFO), which offered comparable oxygen balance and detonation velocity at lower cost and reduced sensitivity to initiation, reflecting a broader shift toward non-metallized explosives for bulk mining operations.^[5] Ammonal's enduring legacy lies in its pivotal role during the Battle of Messines on 7 June 1917, where British forces detonated 19 mines containing roughly 454 metric tons of the explosive beneath German positions, generating seismic effects registered as far as London and contributing to an estimated 10,000 enemy casualties in the initial blasts—events that remain among the largest conventional detonations in history.^[19] Surviving craters, such as Lochnagar (detonated with 60,000 pounds of Ammonal), serve as preserved memorials to mine warfare, underscoring the tactic's tactical shock value despite its ultimate failure to decisively alter the war's course.^[24] Contemporary studies of Ammonal variants persist in academic research, examining detonation scaling and non-ideal behavior to inform safer modern aluminized formulations, though practical deployment remains rare due to inherited stability concerns.^[1]

Applications

Military Uses

Ammonal saw extensive military application by the British Army during World War I, particularly in underground mining warfare aimed at collapsing German trench lines. From early 1916, it served as the primary explosive for tunnel bombs, offering a potent mixture that enhanced blast effects through aluminum's incendiary properties combined with ammonium nitrate's oxygen supply.^[3] The first significant deployment occurred at Hawthorn Ridge Redoubt during the Battle of the Somme on July 1, 1916, where approximately 40,000 pounds (18,000 kg) of Ammonal were detonated in a mine beneath German positions, creating a crater over 30 meters deep but alerting defenders due to a premature explosion ten minutes before the infantry assault.^[25]^[26] Subsequent uses included a second mine at the same site on November 13, 1916, with 30,000 pounds of Ammonal fired without delay to support advances.^[27] In the Battle of Messines on June 7, 1917, the British detonated 19 mines charged with a total of 454 tons of Ammonal and gun cotton beneath the Messines Ridge, producing seismic shocks registered as far as London and contributing to an estimated 10,000 German casualties in one of history's largest non-nuclear explosions.^[28]^[18] Individual charges, such as one under Hill 60, contained 53,300 pounds of Ammonal, dug through challenging blue clay to reach German lines.^[29] These operations by Royal Engineer tunnelling companies demonstrated Ammonal's suitability for large-scale, deep-buried charges, though its sensitivity required careful handling to prevent premature detonation.^[30] Post-World War I, Ammonal's military use declined sharply due to the development of more stable high explosives like TNT and Composition B, limiting its role to legacy contexts rather than ongoing applications.^[31]

Industrial and Mining Uses

Ammonal, a mixture primarily of ammonium nitrate and aluminum powder, was originally developed in England in 1915 for mining applications, offering enhanced explosive power through the thermitic reaction of aluminum that increases detonation temperature and pressure for effective rock fragmentation.^[11] Its high brisance made it suitable for blasting in hard rock formations, where the aluminum component contributed to superior shattering compared to ammonium nitrate alone.^[32] In early 20th-century operations, Ammonal saw extensive use in open-cast mining, quarrying, and coal seam blasting, particularly for softer and thicker seams, as it provided reliable detonation with lower sensitivity to moisture than nitroglycerin-based dynamites.^[33] Typical formulations, such as 95% ammonium nitrate with 5% aluminum, were loaded into boreholes for controlled blasts, balancing cost-effectiveness with performance in civil engineering projects like tunnel excavation and aggregate production.^[34] Post-World War I, Ammonal's industrial application persisted in specialized blasting but declined with the rise of cheaper, less sensitive alternatives like ANFO, though research into its detonation parameters continues for optimizing non-ideal explosive behavior in mining cylinders.^[1] Modern instances include combinations with boosters like Anfex in horizontal and vertical boreholes for enhanced fragmentation in coal mining, demonstrating ongoing niche utility in regions with challenging geology.^[35]

Safety Considerations

Inherent Risks

Ammonal, typically composed of 80–95% ammonium nitrate and 5–20% aluminum powder, possesses moderate impact sensitivity, with 50% initiation heights exceeding 76 cm for loose powder and over 320 cm for pelleted forms in standardized drop-weight tests, indicating lower risk of accidental detonation from mechanical shock compared to highly sensitive explosives like PETN (12 cm initiation height) but comparable to TNT (187 cm).^[7] This relative insensitivity facilitates handling but does not eliminate hazards from high-velocity impacts or detonator misuse, particularly in unconfined or low-density charges where initiation thresholds remain achievable.^[7] Thermal stability is compromised by the aluminum additive, as vacuum stability tests at 150–250°C reveal faster gas evolution and decomposition than pure ammonium nitrate, increasing the likelihood of runaway reactions under heat exposure.^[7] Cook-off experiments demonstrate ignition in 80% of trials at 700°F and 100% at 1000°F, with molten Ammonal exhibiting heightened sensitivity to subsequent stimuli, potentially transitioning deflagration to detonation if confined or contaminated.^[7] Slow heating poses additional risks of spontaneous ignition without full detonation, releasing toxic fumes and partial energy output.^[7] As a non-ideal explosive, Ammonal's performance depends critically on charge diameter, confinement, and density, leading to potential low-order detonations or failure to propagate, which leave undetonated material as a persistent hazard.^[1] Aluminum enhances brisance and afterburning, extending combustion times (up to 2.5-fold increase with additives) and elevating secondary blast pressures, though excessive aluminum can desensitize mixtures, preventing reliable initiation.^[2] The ammonium nitrate base introduces hygroscopicity, promoting moisture ingress that degrades stability and may sensitize the mixture to contaminants like organics or chlorates.^[36]^[37] Electrical initiation risks arise from low thresholds (30–3500 volts depending on configuration), susceptible to stray currents or static from aluminum powder.^[7]

Regulatory and Handling Protocols

Ammonal, as a recognized explosive mixture, is regulated in the United States under the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) as part of the annual list of explosive materials, subjecting its manufacture, storage, distribution, and use to federal licensing requirements per 18 U.S.C. Chapter 40 and 27 CFR Part 555.^[38]^[39] Entities handling Ammonal must secure federal explosives licenses or permits, maintain detailed records of inventory and transactions, and ensure facilities meet security standards to prevent theft or unauthorized access.^[40] Storage occurs in ATF-approved magazines (Types 1 through 5, depending on quantity and class), with mandatory separation distances from inhabited buildings, highways, and other explosives to mitigate sympathetic detonation risks—typically 50 feet for up to 100 pounds of high explosives like Ammonal, increasing with quantity per ATF tables.^[41]^[42] Occupational Safety and Health Administration (OSHA) guidelines under 29 CFR 1910.109 govern workplace handling, classifying Ammonal as a high explosive and prohibiting co-storage with detonators, flammable liquids, or contaminants such as acids, chlorates, or organic materials that could accelerate decomposition.^[43] Protocols emphasize trained personnel, non-sparking tools, grounding to prevent static discharge, and ventilation to avoid moisture accumulation, as ammonium nitrate components are hygroscopic and sensitive to heat exceeding 130°F upon storage entry.^[44] Personal protective equipment, including gloves, safety goggles, and dust masks, is required to address inhalation and contact hazards from aluminum powder and nitrate dust.^[45] No smoking, open flames, or impact-prone operations are permitted within 50 feet of storage or handling areas. In mining contexts, the Mine Safety and Health Administration (MSHA) mandates clean handling equipment and procedures to prevent introduction of foreign materials that could alter sensitivity, with misfires treated akin to dynamite incidents—requiring evacuation and professional disposal.^[46] Transportation complies with Department of Transportation (DOT) rules as a Class 1 Division 1.1 explosive, demanding compatible packaging, vehicle placarding, and driver certification; internationally, it aligns with UN Model Regulations for dangerous goods (Class 1), including IMDG Code provisions for maritime bulk transport prohibiting under-deck stowage without emergency venting capabilities.^[39]^[47]

Notable Incidents Involving Similar Mixtures

On July 7, 2023, an explosion at the Promsintez explosives manufacturing plant in Chapayevsk, Samara Oblast, Russia, resulted in the deaths of six workers and injuries to two others.^[48]^[49] The facility specializes in producing ammonal, along with nitric and sulfuric acids for industrial and military applications.^[50] Preliminary investigations indicated the blast occurred during welding operations, highlighting risks associated with handling sensitizing agents like aluminum powder in proximity to ammonium nitrate.^[49] This incident underscores the potential for unintended detonation in production environments despite established protocols.^[51] Mixtures akin to ammonal, such as those combining ammonium nitrate with aluminum powder for binary exploding targets like Tannerite, have led to civilian accidents due to improper mixing or initiation. In one documented case from 2016, a user suffered severe blast injuries, including mangled extremities and shrapnel wounds, from handling a Tannerite mixture without adhering to impact-only detonation guidelines, demonstrating heightened sensitivity when components are prematurely combined.^[52] Similarly, on June 8, 2024, a bystander in Benton County, Minnesota, sustained serious injuries from a Tannerite explosion during recreational shooting, where witnesses reported the detonation occurring in a field setting.^[53] These events illustrate the hazards of unregulated access to ammonium nitrate-aluminum formulations outside controlled industrial or military contexts.^[54] Such incidents with similar mixtures emphasize the need for strict separation of oxidizer and fuel components until intentional use, as aluminum's role as a sensitizer can amplify decomposition rates under fire or mechanical stress.^[52] While ammonal's military and mining applications have historically minimized public accidents through oversight, parallels with civilian analogs reveal broader vulnerabilities in storage, transport, and amateur experimentation.^[55]

Comparative Analysis

Advantages Over Other Explosives

Ammonal exhibits superior thermal output compared to many conventional explosives due to the highly exothermic oxidation of its aluminum component, which enhances rock fragmentation and blasting efficiency in mining operations.^[56] This increased heat of explosion, derived from the reaction between ammonium nitrate's oxygen and aluminum powder, provides greater energy release per unit mass than ammonium nitrate alone or standard mixtures like ANFO without metallic additives.^[5] In military applications, particularly during World War I, ammonal's formulation allowed for the economical production and deployment of massive charges, such as the approximately 40,000 pounds detonated at Hawthorn Ridge on July 1, 1916, enabling effective cratering under enemy lines where pure high explosives like TNT were cost-prohibitive at scale.^[3] Its non-ideal detonation behavior facilitates energy buildup in large-diameter charges, outperforming ideal explosives in unconfined or scaled-up scenarios by sustaining propagation and pressure over extended volumes.^[57] Relative to TNT, ammonal offers cost advantages stemming from the inexpensive ammonium nitrate base, which comprised the bulk of wartime production needs, while the aluminum augmentation boosts detonation velocity and pressure beyond baseline ammonium nitrate explosives.^[5] This combination rendered it preferable for industrial blasting where high brisance and thermal effects were prioritized over the consistent velocity of manufactured aromatics.^[1]

Limitations and Alternatives

Ammonal exhibits non-ideal detonation behavior, with performance strongly dependent on charge diameter and confinement, leading to potential failure in smaller or poorly confined charges where steady propagation may not occur reliably.^[1] This variability arises from the mixture's reliance on ammonium nitrate's decomposition kinetics, which can result in incomplete energy release or dead-pressing in suboptimal geometries, increasing the risk of misfires in mining blasts or military applications.^[1] Additionally, its detonation velocity of approximately 4,400 m/s is lower than that of trinitrotoluene (6,900 m/s), limiting brisance and fragmentation efficiency in hard rock blasting or cratering operations.^[34] The inclusion of aluminum powder enhances energy output through exothermic oxidation but elevates costs compared to simpler ammonium nitrate-based mixtures, as aluminum comprises a significant portion of the formulation (typically 5-20%) and requires precise particle sizing for optimal reactivity.^[58] Ammonal also inherits ammonium nitrate's hygroscopicity, reducing shelf life and performance in humid environments unless sealed, and poses handling risks due to sensitivity variations with fuel-oxidizer ratios—mixtures near 95:5 ammonium nitrate to aluminum can detonate from moderate shock but suffer oxygen imbalance, yielding incomplete combustion and toxic byproducts like nitrogen oxides.^[59] Regulatory restrictions further limit its use, mandating permits for production and transport due to these sensitivities and potential for misuse.^[34] In mining, alternatives like ammonium nitrate-fuel oil (ANFO) predominate for bulk blasting due to lower cost (often 20-50% cheaper per unit energy) and simpler logistics, though ANFO shares water resistance issues and requires larger primers for reliable initiation in non-ideal conditions.^[5] Water-resistant emulsions or slurries, such as those based on ammonium nitrate with polymer-thickened fuels, offer superior stability in wet environments and reduced sensitivity, enabling safer deployment in underground operations without sacrificing velocity (up to 5,000-6,000 m/s). For military cratering or demolition, high explosives like Composition B (RDX/TNT) provide consistent high-velocity performance (around 8,000 m/s) and better oxygen balance, minimizing residue and enhancing predictability over Ammonal's historical formulations.^[58] T-ammonal variants, incorporating TNT, mitigate some brisance deficits but introduce manufacturing complexity akin to pure military-grade melts.^[34]

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Explosives Storage Requirements - Tables of Distances - ATF
Explosive materials not subject to the activities in 27 CFR § 555.205 must be stored in a magazine that meets the table(s) of distances based on the class or ...
[42]
What are the classes of explosive materials for storage purposes?
There are 3 classes of explosive materials: (a) High explosives (for example, dynamite, flash powders, and bulk salutes); (b) Low explosives (for example, ...Missing: Ammonal | Show results with:Ammonal
[43]
1910.109 - Explosives and blasting agents. - OSHA
Explosive - any chemical compound, mixture, or device, the primary or common purpose of which is to function by explosion.
[44]
Guidance on the Ammonium Nitrate Storage Requirements in 29 ...
Dec 3, 2014 · Containers of ammonium nitrate shall not be accepted for storage when the temperature of the ammonium nitrate exceeds 130 deg. F. To prevent hot ...
[45]
[PDF] Safety Aspects | Mining and Blasting
When handling ammonium nitrate: • Wear dust mask and safety goggles in case dust is generated when handling the product. • Wear gloves when handling AN to.Missing: mining | Show results with:mining
[46]
[PDF] safety recommendations for sensitized ammonium nitrate blasting ...
A misfire with a blasting agent should be handled in the same way as a misfire with a dynamite charge. Blasting Operations--Underground Mines (Additional ...
[47]
[PDF] Transport conditions for UN 2426 Ammonium nitrate - UNECE
Sep 17, 2021 · 3. Conditions for transport of ammonium nitrate are fixed in International Maritime Dangerous Goods (IMDG) Code and RID/ADR, while transport of ...
[48]
6 Killed in Blast at Explosives Factory in Central Russia – State Media
Jul 7, 2023 · The Promsintez plant is a manufacturer of industrial explosives and chemicals that specializes in ammonal, nitric acid, technical sulfuric acid, ...
[49]
6 killed, 2 hurt in blast at explosives manufacturing plant in Russia
Jul 7, 2023 · According to preliminary information, blast occurred at Promsintez plant in Samara region during welding work - Anadolu Ajansı.
[50]
Explosion at Chemical Plant Kills - Powder & Bulk Solids
Jul 10, 2023 · At least six people were killed and two others injured in a blast at a Russian explosives factory in the Samara region on Friday.
[51]
Six killed, two injured after factory explosion in central Russia - WION
Jul 7, 2023 · At least six people were killed and two injured after a blast ripped through an explosives factory in Russia's central Samara region.
[52]
A case of Tannerite® target mixture causing severe blast injury
Tannerite® is a proprietary blend of an oxidizer, ammonium nitrate, and aluminum powder catalyst used to make homemade exploding targets. While it is ...Missing: incidents | Show results with:incidents
[53]
Benton County Sheriff Investigates Serious Injury from Tannerite ...
Jun 10, 2024 · At around 9:30 Saturday night, witnesses told police a bystander was injured while another person was shooting a rifle at some Tannerite in a field in Maywood ...
[54]
A case of Tannerite(®) target mixture causing severe blast injury
Tannerite(®) is a proprietary blend of an oxidizer, ammonium nitrate, and aluminum powder catalyst used to make homemade exploding targets.
[55]
[PDF] DATE: 06/09/2024 - Benton County, MN
Jun 9, 2024 · On June 8th, 2024, the Benton County Sheriff's Office responded to the report of an injury resulting from recreational firearms use.Missing: accidents | Show results with:accidents
[56]
NATURE 5
-One of the best known and most used of the ammonium nitrate mixtures is ammonal, in which use is made of the great heat given out by the oxidation of aluminium ...
[57]
Cylinder Test Wall Velocity Profiles and Product Energy for an ...
Ammonium nitrate mixed with aluminum powder forms a non-ideal explosive often referred to as ammonal. Non-ideal detonation can result in significant energy ...
[58]
[PDF] Properties and Characteristics of Aluminum Explosives - USSR. - DTIC
As regards the amount of oxidation energy per unit of weight, aluminum occupies one of the first positions among the elements.
[59]
https://www.cameochemicals.noaa.gov/chemical/98