HYDROGEN IODIDE 1326
October 1999
Anhydrous hydriodic acid
CAS No: 10034-85-2
HI
RTECS No: MW3760000
Molecular mass: 127.9
UN No: 2197
EC No: 053-002-00-9
TYPES OF
ACUTE HAZARDS/SYMPTOMS PREVENTION FIRST AID/FIRE FIGHTING
HAZARD/
EXPOSURE
Not combustible. Gives off irritating In case of fire in the surroundings:
FIRE
or toxic fumes (or gases) in a fire. powder, alcohol-resistant foam,
water spray, carbon dioxide.
EXPLOSION
EXPOSURE AVOID ALL CONTACT! IN ALL CASES CONSULT A
DOCTOR!
Burning sensation. Cough. Closed system and ventilation. Fresh air, rest. Half-upright position.
Inhalation
Laboured breathing. Shortness of Refer for medical attention.
breath. Sore throat. Symptoms
may be delayed (see Notes).
Redness. Skin burns. Pain. Cold-insulating gloves. Protective ON FROSTBITE: rinse with plenty
Skin
Blisters. (See Inhalation). ON clothing. of water, do NOT remove clothes.
CONTACT WITH LIQUID: Refer for medical attention.
FROSTBITE.
Redness. Pain. Severe deep Face shield or eye protection in First rinse with plenty of water for
Eyes
burns. combination with breathing several minutes (remove contact
protection. lenses if easily possible), then take
to a doctor.
Do not eat, drink, or smoke during
Ingestion
work.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Ventilation. Personal protection: chemical protection C Symbol
suit including self-contained breathing apparatus. R: 35
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)-20G2TC Fireproof if in building.
NFPA Code: H3; F0; R0
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.
1326 HYDROGEN IODIDE
IMPORTANT DATA
Physical State; Appearance Routes of exposure
COLOURLESS GAS, WITH PUNGENT ODOUR. The substance can be absorbed into the body by inhalation.
Physical dangers Inhalation risk
The gas is heavier than air. A harmful concentration of this gas in the air will be reached
very quickly on loss of containment.
Chemical dangers
Effects of short-term exposure
Reacts with strong oxidants, magnesium, causing fire hazard.
The solution in water is a strong acid, it reacts violently with The substance is corrosive to the eyes, the skin and the
bases and is corrosive. respiratory tract. Inhalation of this gas may cause lung oedema
(see Notes). The effects may be delayed. Medical observation is
indicated. See Notes.
Occupational exposure limits
TLV not established.
PHYSICAL PROPERTIES
Boiling point: -35.5/C Vapour pressure, kPa at /C: 756
Melting point: -51/C Relative vapour density (air = 1): 4.4
Solubility in water, g/100 ml at 20/C: 57
ENVIRONMENTAL DATA
NOTES
Copper-nickel alloys and copper-tin alloys, as well as, stainless steel and nickel-chromium alloys, offer the best resistance to
corrosion.
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 April 2005. See sections EU classification, 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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