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NIOSH

SODIUM IODIDE (ANHYDROUS)

ICSC: 1009

Sodium monoiodide
NaI
Molecular mass: 149.9
ICSC # 1009 		CAS # 7681-82-5
RTECS # WB6475000
April 20, 2005 Validated

TYPES OF HAZARD/ EXPOSURE

ACUTE HAZARDS/ SYMPTOMS

PREVENTION

FIRST AID/
FIRE FIGHTING

FIRE Not combustible. Gives off irritating or toxic fumes (or gases) in a fire.

In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION


EXPOSURE
PREVENT DISPERSION OF DUST! AVOID EXPOSURE OF (PREGNANT) WOMEN!

•INHALATION Cough. Sore throat. Headache.
Ventilation (not if powder), local exhaust, or breathing protection.
Fresh air, rest.
•SKIN Redness.
Protective gloves.
Remove contaminated clothes. Rinse skin with plenty of water or shower.
•EYES Redness.
Safety goggles or eye protection in combination with breathing protection if powder.
First rinse with plenty of water for several minutes (remove contact lenses if easily possible), then take to a doctor.
•INGESTION Diarrhoea. Nausea. Vomiting.
Do not eat, drink, or smoke during work.
Rinse mouth. Give one or two glasses of water to drink. Refer for medical attention.

SPILLAGE DISPOSAL

STORAGE

PACKAGING & LABELLING

Personal protection: P1 filter respirator for inert particles. Sweep spilled substance into containers.
Separated from strong oxidants, food and feedstuffs. Dry. Well closed.

ICSC: 1009 Prepared in the context of cooperation between the International Programme on Chemical Safety & the Commission of the European Communities (C) IPCS CEC 1994. No modifications to the International version have been made except to add the OSHA PELs, NIOSH RELs and NIOSH IDLH values.

SODIUM IODIDE (ANHYDROUS)

ICSC: 1009

I

M

P

O

R

T

A

N

T


D

A

T

A

PHYSICAL STATE; APPEARANCE:
COLOURLESS TO WHITE HYGROSCOPIC CRYSTALS OR WHITE POWDER . TURNS BROWN ON EXPOSURE TO AIR.

PHYSICAL DANGERS:


CHEMICAL DANGERS:
Reacts violently with strong oxidants to produce iodine fumes.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (Iodides, inhalable fraction & vapour) 0.01 ppm as TWA A4 (not classifiable as a human carcinogen); (ACGIH 2008).
MAK not established.


ROUTES OF EXPOSURE:
The substance can be absorbed into the body by ingestion.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly especially if powdered.

EFFECTS OF SHORT-TERM EXPOSURE:
The substance is irritating to the eyes , the skin and the respiratory tract.

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
If ingested: the substance may have effects on the thyroid and may cause systemic sensitization. See Notes.

PHYSICAL
PROPERTIES

Boiling point: 1304°C
Melting point: 660°C
Density: 3.67
g/cm3
Solubility in water, g/100 ml at 25°C: 184

ENVIRONMENTAL
DATA


N O T E S

Health effects apply also to Sodium iodide dihydrate CAS 13517-06-1. Symptoms of systemic sensitization may include airway obstruction and various skin reactions or even anaphylactic shock. Exposure during pregnancy may affect the thyroid function of the newborn.
Card has been partially updated in November 2008: see Occupational Exposure Limits, Ingestion First Aid.

ADDITIONAL INFORMATION



ICSC: 1009 SODIUM IODIDE (ANHYDROUS)
(C) IPCS, CEC, 1994
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 NIOSH IDLH values.
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