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IODINE ICSC: 0167
Date of Peer Review: April 2004

Jod
Iode
Iodio
Yodo
CAS # 7553-56-2 I2
RTECS # NN1575000 Molecular mass: 253.8
UN #
EC Index # 053-001-00-3
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Not combustible but enhances combustion of other substances. Many reactions may cause fire or explosion. Gives off irritating or toxic fumes (or gases) in a fire.
NO contact with flammable substances.
In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
STRICT HYGIENE!

Inhalation Cough. Wheezing. Laboured breathing. Symptoms may be delayed (see Notes).
Ventilation (not if powder), local exhaust, or breathing protection.
Fresh air, rest. Half-upright position. Artificial respiration may be needed. Refer for medical attention.
Skin Redness. Pain.
Protective gloves. Protective clothing.
First rinse with plenty of water, then remove contaminated clothes and rinse again.
Eyes Causes watering of the eyes. Redness. Pain.
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 Abdominal pain. Diarrhoea. Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into sealable containers; if appropriate, moisten first to prevent dusting. Carefully collect remainder, then remove to safe place. Do NOT absorb in saw-dust or other combustible absorbents. Do NOT let this chemical enter the environment. Personal protection: filter respirator for inorganic gases, vapours and halogens.
EU Classification
Symbol: Xn, N
R: 20/21-50
S: (2-)-23-25-61
UN Classification

EMERGENCY RESPONSE STORAGE

Separated from incompatible materials. See Chemical Dangers. Well closed. Ventilation along the floor.
IPCS
International
Programme on
Chemical Safety
Prepared in the context of cooperation between the International Programme on Chemical Safety and the Commission of the European Communities IPCS, CEC 2005

SEE IMPORTANT INFORMATION ON BACK
IODINE ICSC: 0167
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
BLUISH BLACK OR DARK PURPLE CRYSTALS, WITH PUNGENT ODOUR.

PHYSICAL DANGERS:
Iodine readily sublimes.

CHEMICAL DANGERS:
Upon heating, toxic fumes are formed. The substance is a strong oxidant and reacts with combustible and reducing materials. Reacts violently with metal powders, antimony, ammonia, acetaldehyde, acetylene causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: 0.1 ppm; (Ceiling value); (ACGIH 2004).
MAK: IIb (not established but data is available); (DFG 2005).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation of its vapour, through the skin and by ingestion.

INHALATION RISK:
A harmful contamination of the air can be reached rather quickly on evaporation of this substance at 20C.

EFFECTS OF SHORT-TERM EXPOSURE:
Lachrymation. The substance is severely irritating to the eyes and the respiratory tract, and is irritating to the skin. Inhalation of the vapour may cause asthma-like reactions (RADS). Inhalation of the vapour may cause lung oedema (see Notes). The effects may be delayed. Medical observation is indicated.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
Repeated or prolonged contact may cause skin sensitization in rare cases. Repeated or prolonged inhalation exposure may cause asthma-like syndrome (RADS). The substance may have effects on the thyroid.
PHYSICAL PROPERTIES
Boiling point: 184C
Melting point: 114C
Relative density (water = 1): 4.9
Solubility in water, g/100 ml at 20C: 0.03
Vapour pressure, kPa at 25C: 0.04
Relative vapour density (air = 1): 8.8
Relative density of the vapour/air-mixture at 20C (air = 1): 1
Octanol/water partition coefficient as log Pow: 2.49
ENVIRONMENTAL DATA
This substance may be hazardous in the environment; special attention should be given to fish.
NOTES
The occupational exposure limit value should not be exceeded during any part of the working exposure. Rinse contaminated clothes (fire hazard) with plenty of water. 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. The symptoms of asthma 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. Card has been partly updated in October 2005. See section Emergency Response.
ADDITIONAL INFORMATION


LEGAL NOTICE Neither the CEC nor 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
IPCS, CEC 2005
See Also:
        Iodine (CHEMINFO)
        Iodine (PIM 280)