International Chemical Safety Cards

AMMONIA (ANHYDROUS) ICSC: 0414

AMMONIA (ANHYDROUS)
(cylinder)
NH3
Molecular mass: 17.03
CAS # 7664-41-7
RTECS # BO0875000
ICSC # 0414
UN # 1005
EC # 007-001-00-5
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Flammable.
NO open flames, NO sparks, and NO smoking.
In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION Gas/air mixtures are explosive.
Closed system, ventilation, explosion-proof electrical equipment and lighting.
In case of fire: keep cylinder cool by spraying with water.
EXPOSURE
AVOID ALL CONTACT!

  • INHALATION
    		• Burning sensation. Cough. Laboured breathing. Shortness of breath. Sore throat. Symptoms may be delayed (see Notes).
    		Ventilation, local exhaust, or breathing protection.
    		Fresh air, rest. Half-upright position. Artificial respiration if indicated. Refer for medical attention.
  • SKIN
    		• Redness. Skin burns. Pain. Blisters. ON CONTACT WITH LIQUID: FROSTBITE.
    		Cold-insulating gloves. Protective clothing.
    		ON FROSTBITE: rinse with plenty of water, do NOT remove clothes. Refer for medical attention.
  • EYES
    		• Redness. Pain. Severe deep burns.
    		Face shield, or eye protection in combination with breathing protection.
    		First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
  • INGESTION



    • SPILLAGE DISPOSAL STORAGE PACKAGING & LABELLING
    Evacuate danger area! Consult an expert! Ventilation. NEVER direct water jet on liquid. Remove gas with fine water spray (extra personal protection: gas-tight chemical protection suit including self-contained breathing apparatus).
    		Fireproof. Separated from oxidants, acids, halogens. Cool. Keep in a well-ventilated room.

    T symbol
    N symbol
    R: 10-23-34-50
    S: (1/2-)9-16-26-36/37/39-45-61
    UN Hazard Class: 2.3
    UN Subsidiary Risks: 8
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0414 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities © IPCS CEC 1993 No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and IDLH values.

    International Chemical Safety Cards

    AMMONIA (ANHYDROUS) ICSC: 0414

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    PHYSICAL STATE; APPEARANCE:
     COLOURLESS, COMPRESSED LIQUEFIED GAS , WITH PUNGENT ODOUR.

    PHYSICAL DANGERS:
     The gas is lighter than air.

    CHEMICAL DANGERS:
     Shock-sensitive compounds are formed with mercury, silver and gold oxides. The substance is a strong base, it reacts violently with acid and is corrosive. Reacts violently with strong oxidants and halogens. Attacks copper, aluminum, zinc and their alloys. Dissolves in water evolving heat.

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 25 ppm; 17 mg/m3 (as TWA); 35 ppm; 24 mg/m3 (as STEL) (ACGIH 1997).

    MAK: 20 ppm; 14 mg/m3; (1993)
    OSHA PEL: TWA 50 ppm (35 mg/m3)
    NIOSH REL: TWA 25 ppm (18 mg/m3) ST 35 ppm (27 mg/m3)
    NIOSH IDLH: 300 ppm


    		ROUTES OF EXPOSURE:
     The substance can be absorbed into the body by inhalation.

    INHALATION RISK:
     A harmful concentration of this gas in the air will be reached very quickly on loss of containment.

    EFFECTS OF SHORT-TERM EXPOSURE:
     The substance is corrosive to the eyes, the skin, and the respiratory tract. Inhalation of high concentrations may cause lung oedema (see Notes). Rapid evaporation of the liquid may cause frostbite.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
    PHYSICAL
    PROPERTIES
    Boiling point: -33°C
    Melting point: -78°C
    Relative density (water = 1): 0.7 at -33°C
    Solubility in water, g/100 ml at 20°C: 54
    		 Vapour pressure, kPa at 26°C: 1013
    Relative vapour density (air = 1): 0.59
    Auto-ignition temperature: 651°C
    Explosive limits, vol% in air: 15-28
    ENVIRONMENTAL
    DATA
         		The substance is very toxic to aquatic organisms.
    N O T E S
    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 spray, 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.
    Transport Emergency Card: TEC (R)-1
    NFPA Code: H3; F1; R0;
    ADDITIONAL INFORMATION


    ICSC: 0414 AMMONIA (ANHYDROUS)
    © IPCS, CEC, 1993
    IMPORTANT LEGAL NOTICE: Neither NIOSH, the CEC or the IPCS nor any person acting on behalf of NIOSH, the CEC or the IPCS is responsible for the use which might be made of this information. This card contains the collective views of the IPCS Peer Review Committee and may not reflect in all cases all the detailed requirements included in national legislation on the subject. The user should verify compliance of the cards with the relevant legislation in the country of use. The only modifications made to produce the U.S. version is inclusion of the OSHA PELs, NIOSH RELs and IDLH values.