HYDROGEN CHLORIDE 0163
April 2000
Anhydrous hydrogen chloride
CAS No: 7647-01-0
Hydrochloric acid, anhydrous
RTECS No: MW4025000
(cylinder)
UN No: 1050
HCl
EC No: 017-002-00-2
Molecular mass: 36.5
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Not combustible. In case of fire in the surroundings:
FIRE
use appropriate extinguishing
media.
In case of fire: keep cylinder cool by
EXPLOSION
spraying with water.
EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A
DOCTOR!
Corrosive. Burning sensation. Ventilation, local exhaust, or Fresh air, rest. Half-upright position.
Inhalation
Cough. Laboured breathing. breathing protection. Artificial respiration may be needed.
Shortness of breath. Sore throat. Refer for medical attention.
Symptoms may be delayed (see
Notes).
ON CONTACT WITH LIQUID: Cold-insulating gloves. Protective First rinse with plenty of water, then
Skin
FROSTBITE. Corrosive. Serious clothing. remove contaminated clothes and
skin burns. Pain. rinse again. Refer for medical
attention.
Corrosive. Pain. Blurred vision. Safety goggles or eye protection in First rinse with plenty of water for
Eyes
Severe deep burns. 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! T Symbol
Ventilation. Remove gas with fine water spray. C Symbol
Personal protection: complete protective clothing R: 23-35
including self-contained breathing apparatus. S: (1/2-)9-26-36/37/39-45
UN Hazard Class: 2.3
UN Subsidiary Risks: 8
EMERGENCY RESPONSE SAFE STORAGE
Transport Emergency Card: TEC (R)-20S1050 Separated from combustible and reducing substances, strong oxidants,
NFPA Code: H 3; F 0; R 1 strong bases, metals. Keep in a well-ventilated room. Cool. Dry.
IPCS Prepared in the context of cooperation between the International
Programme on Chemical Safety and the European Commission 漏
International IPCS 2005
Programme on
Chemical Safety SEE IMPORTANT INFORMATION ON THE BACK.
0163 HYDROGEN CHLORIDE
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
The gas is heavier than air. very quickly on loss of containment.
Chemical dangers Effects of short-term exposure
The solution in water is a strong acid, it reacts violently with Rapid evaporation of the liquid may cause frostbite. The
bases and is corrosive. Reacts violently with oxidants forming substance is corrosive to the eyes, the skin and the respiratory
toxic gas (chlorine - see ICSC 0126). Attacks many metals in the tract. Inhalation of high concentrations of the gas may cause
presence of water forming flammable/explosive gas (hydrogen - pneumonitis and lung oedema, resulting in reactive airways
see ICSC0001). dysfunction syndrome (RADS) (see Notes). The effects may be
delayed. Medical observation is indicated.
Occupational exposure limits
Effects of long-term or repeated exposure
TLV: 2 ppm; (Ceiling value); A4 (not classifiable as a human
carcinogen); (ACGIH 2004). The substance may have effects on the lungs, resulting in
MAK: 2 ppm, 3.0 mg/m3; Peak limitation category: I(2); chronic bronchitis. The substance may have effects on the
Pregnancy risk group: C; (DFG 2004). teeth, resulting in erosion.
PHYSICAL PROPERTIES
Boiling point: -85/C Solubility in water, g/100 ml at 30/C: 67
Melting point: -114/C Relative vapour density (air = 1): 1.3
Density: 1.00045 g/l (gas) 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 inhalation therapy 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.
Other UN numbers: 2186 (refridgerated liquid) hazard class: 2.3; subsidiary hazard: 8; 1789 (hydrochloric acid) hazard class: 8, pack
group II or III. Aqueous solutions may contain up to 38% hydrogen chloride.
Card has been partly updated in April 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
漏IPCS 2005
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