AMMONIA (ANHYDROUS) 0414
March 1998
CAS No: 7664-41-7 (cylinder)
NH3
RTECS No: BO0875000
Molecular mass: 17.03
UN No: 1005
EC No: 007-001-00-5
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
FIRE Flammable. NO open flames, NO sparks, and NO In case of fire in the surroundings:
smoking. use appropriate extinguishing media.
EXPLOSION Gas/air mixtures are explosive. Closed system, ventilation, In case of fire: keep cylinder cool by
explosion-proof electrical equipment spraying with water.
and lighting.
EXPOSURE AVOID ALL CONTACT!
Inhalation Burning sensation. Cough. Ventilation, local exhaust, or breathing Fresh air, rest. Half-upright position.
Laboured breathing. Shortness of protection. Artificial respiration may be needed.
breath. Sore throat. Symptoms may Refer for medical attention.
be delayed (see Notes).
Skin Redness. Skin burns. Pain. Blisters. Cold-insulating gloves. Protective ON FROSTBITE: rinse with plenty of
ON CONTACT WITH LIQUID: clothing. water, do NOT remove clothes.
FROSTBITE. Refer for medical attention.
Eyes Redness. Pain. Severe deep burns. Face shield or eye protection in First rinse with plenty of water for
combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take to
a doctor.
Ingestion
SPILLAGE DISPOSAL PACKAGING & LABELLING
Evacuate danger area! Consult an expert! Ventilation. T Symbol
NEVER direct water jet on liquid. Remove gas with N Symbol
fine water spray. Personal protection: gas-tight R: 10-23-34-50
chemical protection suit including self-contained S: (1/2-)9-16-26-36/37/39-45-61
breathing apparatus. UN Hazard Class: 2.3
UN Subsidiary Risks: 8
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1005 or Fireproof. Separated from oxidants, acids, halogens. Cool. Keep in a
20G2TC well-ventilated room.
NFPA Code: H3; F1; R0
Prepared in the context of cooperation between the International
IPCS Programme on Chemical Safety and the European Commission 漏
IPCS 2005
International
Programme on
SEE IMPORTANT INFORMATION ON THE BACK.
Chemical Safety
0414 AMMONIA (ANHYDROUS)
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS COMPRESSED LIQUEFIED GAS, WITH The substance can be absorbed into the body by inhalation.
PUNGENT ODOUR.
Inhalation risk
Physical dangers A harmful concentration of this gas in the air will be reached very
The gas is lighter than air. quickly on loss of containment.
Chemical dangers Effects of short-term exposure
Shock-sensitive compounds are formed with mercury, silver and The substance is corrosive to the eyes, the skin and the
gold oxides. The substance is a strong base, it reacts violently respiratory tract. Inhalation of high concentrations may cause lung
with acid and is corrosive. Reacts violently with strong oxidants oedema (see Notes). Rapid evaporation of the liquid may cause
and halogens. Attacks copper, aluminum, zinc and their alloys. frostbite.
Dissolves in water evolving heat.
Occupational exposure limits
TLV: 25 ppm as TWA; 35 ppm as STEL; (ACGIH 2004).
MAK: 20 ppm, 14 mg/m 3; Peak limitation category: I(2); Pregnancy
risk group: C; (DFG 2004).
PHYSICAL PROPERTIES
Boiling point: -33/C Vapour pressure, kPa at 26/C: 1013
Melting point: -78/C Relative vapour density (air = 1): 0.59
Relative density (water = 1): 0.7 at -33/C Auto-ignition temperature: 651/C
Solubility in water, g/100 ml at 20/C: 54 Explosive limits, vol% in air: 15-28
ENVIRONMENTAL DATA
The substance is very toxic to aquatic organisms.
NOTES
The symptoms of lung oedema often do not become manifest until a few hours have passed and they are aggravated by physical effort.
Rest and medical observation is therefore essential.
Immediate administration of an appropriate inhalation therapy by a doctor or a person authorized by him/her, should be considered.
Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
Card has been partly updated in October 2005. See sections Occupational Exposure Limits, Emergency Response.
ADDITIONAL INFORMATION
Neither the EC nor the IPCS nor any person acting on behalf of the EC or the IPCS is responsible
LEGAL NOTICE for the use which might be made of this information
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