International Chemical Safety Cards

HYDROGEN CHLORIDE ICSC: 0163

HYDROGEN CHLORIDE
Anhydrous hydrogen chloride
Hydrochloric acid, anhydrous
(cylinder)
HCl
Molecular mass: 36.5
CAS # 7647-01-0
RTECS # MW4025000
ICSC # 0163
UN # 1050
EC # 017-002-00-2
TYPES OF
HAZARD/
EXPOSURE 		ACUTE HAZARDS/
SYMPTOMS 		PREVENTION FIRST AID/
FIRE FIGHTING
FIRE Not combustible.

In case of fire in the surroundings: all extinguishing agents allowed.
EXPLOSION

In case of fire: keep cylinder cool by spraying with water but NO direct contact with water.
EXPOSURE
AVOID ALL CONTACT!
IN ALL CASES CONSULT A DOCTOR!
  • INHALATION
    		• Corrosive. 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
    		• Corrosive. Serious skin burns. Pain.
    		Protective gloves. Protective clothing.
    		Remove contaminated clothes. Rinse skin with plenty of water or shower. Refer for medical attention.
  • EYES
    		• Corrosive. Pain. Blurred vision. Severe deep burns.
    		Safety goggles, 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. Remove gas with fine water spray (extra personal protection: complete protective clothing including self-contained breathing apparatus).
    		Separated from combustible and reducing substances, strong oxidants, strong bases, metals. Keep in a well-ventilated room.

    C symbol
    R: 35-37
    S: 7/9-26-44
    UN Haz Class: 2.3
    UN Subsidiary Risks: 8
    SEE IMPORTANT INFORMATION ON BACK
    ICSC: 0163 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

    HYDROGEN CHLORIDE ICSC: 0163

    I
    M
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    T
    A
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    T

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

    PHYSICAL DANGERS:
     The gas is heavier than air.

    CHEMICAL DANGERS:
     The solution in water is a strong acid, it reacts violently with bases and is corrosive. Reacts violently with oxidants forming toxic gas (chlorine) (see ICSC # 0126). On contact with air it emits corrosive fumes (hydrochloric acid). Attacks many metals forming combustible gas (HYDROGEN -- see ICSC # 0001).

    OCCUPATIONAL EXPOSURE LIMITS (OELs):
     TLV: 5 ppm; 7.5 mg/m3 (ceiling values) (ACGIH 1992-1993).
    OSHA PEL: C 5 ppm (7 mg/m3)
    NIOSH REL: C 5 ppm (7 mg/m3)
    NIOSH IDLH: 50 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:
     Corrosive. The substance is corrosive to the eyes, the skin and the respiratory tract. Inhalation of high concentrations of the gas may cause lung oedema (see Notes). The effects may be delayed.

    EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
     The substance may have effects on the lungs , resulting in chronic bronchitis. The substance may have effects on the teeth, resulting in erosion.
    PHYSICAL
    PROPERTIES
    Boiling point at 101.3 kPa: -85°C
    Melting point: -114°C
    Solubility in water, g/100 ml at 20°C: 72
    		 Relative vapour density (air = 1): 1.3
    Octanol/water partition coefficient as log Pow: 0.25
    ENVIRONMENTAL
    DATA
    NOTES
    The applying occupational exposure limit value should not be exceeded during any part of the working exposure. 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 are therefore essential. Immediate administration of an appropriate spray, by a doctor or a person authorized by him/her, should be considered. Do NOT spray water on leaking cylinder (to prevent corrosion of cylinder). Turn leaking cylinder with the leak up to prevent escape of gas in liquid state.
    Transport Emergency Card: TEC (R)-135
    NFPA Code: H 3; F 0; R 0;
    ADDITIONAL INFORMATION


    ICSC: 0163 HYDROGEN CHLORIDE
    © 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.