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Date of Issue : Apr 1999 1. IDENTIFICATION
General Product Name : AMMONIUM NITRATE Other Names : UN No. : 1942 Dangerous Goods Class : 5.1 Subsidiary Risk : None Allocated Hazchem Code : 1[Y] Pack Group : III EPG : 31 Poisons Schedule : N/A Uses : Fertilisers, explosives & pyrotechnics
1.1 Physical Description / Properties
Appearance : White powder Formula : NH4NO3 Boiling Point : N/A deg C Melting Point : 169 deg C Vapour Pressure : N/A Specific Gravity : 1.7 (water = 1) Flash Point : N/A pH : () Solubility in water : V.Sol g/l (25 deg C) Flammability Limits (as percentage volume in air) Lower Explosion Limit : N/A Upper Explosion Limit : N/A 1.2 Other Properties
Not available 1.3 Ingredients
2. HEALTH HAZARD INFORMATION
2.1 Health Effects - Acute Swallowed
Ingestion of very large amounts may cause diarrhoea, nausea, vomiting and cramps, weakness, convulsions and collapse Oral LD50 = 4820 mg/kg (Rat) Eye
Irritating and may cause eye tissue damage. Skin
Mildly irritating to skin Frequent and prolonged contact can cause dermatitis No effects should occur if promptly washed off Inhaled
If present as high concentrations of airborne dust, prolonged contact may cause irritation to the nose and throat. At high temperatures, exposure to toxic decomposition products (oxides of nitrogen), can quickly cause acute respiratory problems 2.2 Health Effects - Chronic
Not considered a serious health hazard under normal circumstances. Small repeated oral doses of nitrates may cause weakness, depression, headache and mental impairment
2.3 First Aid
Swallowed
If the victim is conscious and alert, allow them to rinse their mouth then drink 2-4 cupfuls of milk or water. Seek medical attention.
Eye
Flush eyes immediately with plenty of water for at least 15 minutes occasionally lifting the upper and lower lids. Seek medical attention.
Skin
Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. Seek medical attention if effects persist.
Inhaled
Seek medical attention immediately. Remove from exposure to fresh air. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
First Aid Facilities
Ensure an eye bath and safety shower are available and ready for use.
2.5 Advice to Doctor
Treat symptomatically based on judgement of doctor and individual reactions of patient.
2.6 Toxicity Data
3. PRECAUTIONS FOR USE
3.1 Exposure Standards
No exposure limit has been specifically assigned to this product. Where no specific standard has been assigned, the recommended exposure standard for dust in general shall be 10 mg/m3 measured as inspirable dust. The exposure limit is expressed as a time weighted average (TWA) concentration over an 8 hour working shift, for a 5 day working week, and is the exposure standard recommended by Worksafe
3.2 Engineering Controls
Local exhaust ventilation is recommended.
3.3 Personal Protection
When using do not eat, drink or smoke. Wash thoroughly before smoking, eating or using the toilet facilities Avoid breathing the dust Wear overalls, boots, gloves and safety goggles or face shield Where high concentrations of airborne dust are present, a dust respirator conforming to AS1716 should be worn
3.4 Flammability
Not flammable Material is a strong oxidiser, and its heat of reaction with reducing agents or combustibles may cause ignition May support combustion in an existing fire SAFE HANDLING INFORMATION
4.1 Storage / Transport
Store in a cool dry place Store apart from combustible materials, herbicides and fungicides
4.2 Packaging / Labelling UN No. 1942 Class 5.1 Sub Risk None Allocated Hazchem Code 1[Y] Pack Group III EPG No. 31 Shipping Name AMMONIUM NITRATE Hazard
Risk Phrases R8 Contact with combustible material may cause fire.
Safety Phrases S17 Keep away from combustible material. S26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 Wear suitable gloves and eye/face protection.
4.3 Spills and Disposal
Spills
Clean-up personnel should wear full protective clothing including breathing apparatus in dusty conditions. Clean up spills immediately. Avoid generating dusty conditions. Remove all sources of ignition.
Small spills can be swept up for reuse, or can be sluiced away with large quantities of water to drains Large spills (>100 kg) should be swept up and shovelled into suitable containers. Broken packages should be added to the container If ammonium nitrate is contaminated with fuels it should be thinly spread, then the spill area should be sluiced down with large quantities of water. Do not contaminate stream, rivers or water courses
Disposal
Not available
4.4 FIRE AND EXPLOSION HAZARD Fire / Explosion
Not flammable For fires involving this material: A risk of explosion exists if the material is contaminated (eg by fuel oil) or if confined. An adjacent detonation may also cause explosion. Decomposition may give rise to toxic and noxious fumes. Provide maximum ventilation for escape of toxic vapour.
Extinguishing Media
Fire-fighters should wear full protective clothing and self-contained breathing apparatus. DO NOT use more water than is necessary. DO NOT allow jets of water to penetrate heap of molten ammonium nitrate. Keep water flowing until mas has cooled. DO NOT use steam or inert gases. Use equipment/media appropriate to surrounding fire conditions. 5 OTHER INFORMATION
Other Information
Incompatible with: Aluminium, antimony, chromium, copper, zinc, iron, lead, magnesium, nickel, manganese, brass, oil, charcoal, organic material, acetic acid, ammonium chloride, bismuth, cadmium, chlorides, cobalt, phosphorous, potassium and ammonium sulphate
5.1 Contact Points
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The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use.
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