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SODIUM MOLYBDATE ICSC: 1010
Date of Peer Review: October 2004

Molybdic acid, disodium salt
Disodium molybdate
CAS # 7631-95-0 Na2MoO4
RTECS # QA5075000 Molecular mass: 205.9
UN #
EC #
TYPES OF HAZARD / EXPOSURE ACUTE HAZARDS / SYMPTOMS PREVENTION FIRST AID / FIRE FIGHTING
FIRE Combustible under specific conditions.
NO open flames.
In case of fire in the surroundings: use appropriate extinguishing media.
EXPLOSION Risk of fire and explosion on contact with molten magnesium.


EXPOSURE
AVOID ALL CONTACT!

Inhalation Cough. Sore throat.
Local exhaust or breathing protection.
Fresh air, rest. Refer for medical attention.
Skin Redness.
Protective gloves.
Remove contaminated clothes. Rinse and then wash skin with water and soap.
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 Abdominal pain. Nausea. Vomiting. Diarrhoea.
Do not eat, drink, or smoke during work.
Give plenty of water to drink. Refer for medical attention.
SPILLAGE DISPOSAL PACKAGING & LABELLING
Sweep spilled substance into covered containers. Personal protection: P2 filter respirator for harmful particles.
EU Classification
UN Classification

EMERGENCY RESPONSE SAFE STORAGE

Separated from strong oxidant, halogens.
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 2004

SEE IMPORTANT INFORMATION ON BACK


SODIUM MOLYBDATE ICSC: 1010
IMPORTANT DATA
PHYSICAL STATE; APPEARANCE:
WHITE POWDER

CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumes including fumes of sodium oxide. Reacts violently with halogens causing fire and explosion hazard.

OCCUPATIONAL EXPOSURE LIMITS:
TLV: (as Mo, soluble compounds, respirable fraction) 0.5 mg/m as TWA; A3 (confirmed animal carcinogen with unknown relevance to humans); (ACGIH 2004).
MAK: IIb (not established but data is available) (DFG 2004).
ROUTES OF EXPOSURE:
The substance can be absorbed into the body by inhalation.

INHALATION RISK:
A harmful concentration of airborne particles can be reached quickly when dispersed.

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

EFFECTS OF LONG-TERM OR REPEATED EXPOSURE:
The substance may have effects on the respiratory tract. This substance is possibly carcinogenic to humans.
PHYSICAL PROPERTIES
Melting point: 687C
Density: 3.78 g/cm
Solubility in water, g/100 ml at 100C: 84
ENVIRONMENTAL DATA

NOTES
Environmental effects from the substance have not been investigated adequately.
Card has been partly updated in April 2005. See section Occupational Exposure Limits.
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 2004