International Chemical Safety Cards

SODIUM MOLYBDATE ICSC: 1010
World Health Organization (WHO) International Labour Organization (ILO) United Nations Environmental Programme (UNEP) European Commission National Institute for Occupational Safety and Health (NIOSH)
Molybdic acid, disodium salt
Disodium molybdate
Na2MoO4
Molecular mass: 205.9
ICSC #    1010
CAS #     7631-95-0
RTECS # QA5075000
October 28, 2004 Validated
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 STORAGE PACKAGING & LABELLING
Sweep spilled substance into covered containers. Personal protection: P2 filter respirator for harmful particles.
Separated from strong oxidant, halogens .

SEE IMPORTANT INFORMATION ON BACK
ICSC: 1010 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.

International Chemical Safety Cards

SODIUM MOLYBDATE ICSC: 1010
I

M

P

O

R

T

A

N

T


D

A

T

A
PHYSICAL STATE; APPEARANCE:
WHITE POWDER

PHYSICAL DANGERS:


CHEMICAL DANGERS:
The substance decomposes on heating producing toxic fumesincluding 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

N O T E S
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


ICSC: 1010 SODIUM MOLYBDATE
(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.