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

International Chemical Safety Cards

HYDROGEN CHLORIDE

ICSC: 0163

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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).

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 the CEC or the IPCS nor any person acting on behalf of 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.