PRODUCT #: 72069        NAME: SODIUM TUNGSTATE DIHYDRATE*

                     MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98

                         Printed Tuesday, March 18, 1903 1:10PM



Sigma Chemical Co.         Aldrich Chemical Co., Inc.     Fluka Chemical Corp.

P.O. Box 14508             1001 West St. Paul             1001 West St. Paul

St. Louis, MO 63178        Milwaukee, WI 53233            Milwaukee, WI 53233

Phone: 314-771-5765        Phone: 414-273-3850            Phone: 414-273-3850









SECTION 1. - - - - - - - - - CHEMICAL IDENTIFICATION- - - - - - - - - -

    CATALOG #:            72069

    NAME:                 SODIUM TUNGSTATE DIHYDRATE*

SECTION 2. - - - - - COMPOSITION/INFORMATION ON INGREDIENTS - - - - - -

    CAS #: 10213-10-2

    MF: NA2O4W.2*H2O

    EC NO: 236-743-4

  SYNONYMS

    SODIUM TUNGSTATE, DIHYDRATE *

SECTION 3. - - - - - - - - - - HAZARDS IDENTIFICATION - - - - - - - - -

  LABEL PRECAUTIONARY STATEMENTS

    TOXIC (USA)

    HARMFUL (EU)

    HARMFUL BY INHALATION, IN CONTACT WITH SKIN AND IF SWALLOWED.

    IRRITATING TO EYES.

    IN CASE OF CONTACT WITH EYES, RINSE IMMEDIATELY WITH PLENTY OF

    WATER AND SEEK MEDICAL ADVICE.

    WEAR SUITABLE PROTECTIVE CLOTHING.

SECTION 4. - - - - - - - - - - FIRST-AID MEASURES- - - - - - - - - - -

    IN CASE OF CONTACT, IMMEDIATELY FLUSH EYES WITH COPIOUS AMOUNTS OF

    WATER FOR AT LEAST 15 MINUTES.

    IN CASE OF CONTACT, IMMEDIATELY WASH SKIN WITH SOAP AND COPIOUS

    AMOUNTS OF WATER.

    IF INHALED, REMOVE TO FRESH AIR. IF NOT BREATHING GIVE ARTIFICIAL

    RESPIRATION. IF BREATHING IS DIFFICULT, GIVE OXYGEN.

    IF SWALLOWED, WASH OUT MOUTH WITH WATER PROVIDED PERSON IS CONSCIOUS.

    CALL A PHYSICIAN.

    WASH CONTAMINATED CLOTHING BEFORE REUSE.

SECTION 5. - - - - - - - - - FIRE FIGHTING MEASURES - - - - - - - - - -

  EXTINGUISHING MEDIA

    NONCOMBUSTIBLE.

    USE EXTINGUISHING MEDIA APPROPRIATE TO SURROUNDING FIRE CONDITIONS.

  SPECIAL FIREFIGHTING PROCEDURES

    WEAR SELF-CONTAINED BREATHING APPARATUS AND PROTECTIVE CLOTHING TO

    PREVENT CONTACT WITH SKIN AND EYES.

  UNUSUAL FIRE AND EXPLOSIONS HAZARDS

    EMITS TOXIC FUMES UNDER FIRE CONDITIONS.

SECTION 6. - - - - - - - - ACCIDENTAL RELEASE MEASURES- - - - - - - - -

    WEAR RESPIRATOR, CHEMICAL SAFETY GOGGLES, RUBBER BOOTS AND HEAVY

    RUBBER GLOVES.

    SWEEP UP, PLACE IN A BAG AND HOLD FOR WASTE DISPOSAL.

    AVOID RAISING DUST.

    VENTILATE AREA AND WASH SPILL SITE AFTER MATERIAL PICKUP IS COMPLETE.

SECTION 7. - - - - - - - - - - HANDLING AND STORAGE- - - - - - - - - - -

    REFER TO SECTION 8.

SECTION 8. - - - - - - EXPOSURE CONTROLS/PERSONAL PROTECTION- - - - - -

    CHEMICAL SAFETY GOGGLES.

    RUBBER GLOVES.

    NIOSH/MSHA-APPROVED RESPIRATOR IN NONVENTILATED AREAS AND/OR FOR



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               PRODUCT #: 72069        NAME: SODIUM TUNGSTATE DIHYDRATE*

                     MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98

                         Printed Tuesday, March 18, 1903 1:10PM



    EXPOSURE ABOVE THE ACGIH TLV.

    SAFETY SHOWER AND EYE BATH.

    MECHANICAL EXHAUST REQUIRED.

    AVOID BREATHING DUST.

    AVOID CONTACT WITH EYES, SKIN AND CLOTHING.

    AVOID PROLONGED OR REPEATED EXPOSURE.

    WASH THOROUGHLY AFTER HANDLING.

    TOXIC.

    EYE IRRITANT.

    KEEP TIGHTLY CLOSED.

    STORE IN A COOL DRY PLACE.

SECTION 9. - - - - - - - PHYSICAL AND CHEMICAL PROPERTIES - - - - - - -

  APPEARANCE AND ODOR

    WHITE CRYSTALS

SECTION 10. - - - - - - - - -STABILITY AND REACTIVITY - - - - - - - - -

  INCOMPATIBILITIES

    STRONG OXIDIZING AGENTS

  HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS

    NATURE OF DECOMPOSITION PRODUCTS NOT KNOWN.

SECTION 11. - - - - - - - - - TOXICOLOGICAL INFORMATION - - - - - - - -

  ACUTE EFFECTS

    HARMFUL IF SWALLOWED, INHALED, OR ABSORBED THROUGH SKIN.

    CAUSES EYE IRRITATION.

    MAY CAUSE SKIN IRRITATION.

    TO THE BEST OF OUR KNOWLEDGE, THE CHEMICAL, PHYSICAL, AND

    TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY INVESTIGATED.

  ADDITIONAL INFORMATION

    GUINEA PIGS TREATED ORALLY OR INTRAVENOUSLY WITH SODIUM TUNGSTATE

    DIHYDRATE SUFFERED FROM ANOREXIA, COLIC, INCOORDINATION OF MOVEMENT,

    TREMBLING AND DYSPNEA. ANIMALS SUFFERED A WEIGHT LOSS BEFORE A

    DELAYED DEATH.

  RTECS #: YO7900000

    TUNGSTIC ACID, SODIUM SALT, DIHYDRATE

  TOXICITY DATA

    IPR-RAT LD50:204 MG/KG                        AIPTAK 154,243,1965

    SCU-RAT LD50:251 MG/KG                        AJMSA9 199,668,1940

    IPR-MUS LD50:145 MG/KG                        AIPTAK 154,243,1965

  TARGET ORGAN DATA

    BEHAVIORAL (SOMNOLENCE)

    BEHAVIORAL (COMA)

    ONLY SELECTED REGISTRY OF TOXIC EFFECTS OF CHEMICAL SUBSTANCES

    (RTECS) DATA IS PRESENTED HERE. SEE ACTUAL ENTRY IN RTECS FOR

    COMPLETE INFORMATION.

SECTION 12. - - - - - - - - - ECOLOGICAL INFORMATION - - - - - - - - - -

    DATA NOT YET AVAILABLE.

SECTION 13. - - - - - - - - - DISPOSAL CONSIDERATIONS - - - - - - - - -

    CAUTIOUSLY DISSOLVE THE MATERIAL IN WATER. NEUTRALIZE IMMEDIATELY WITH

    SODIUM CARBONATE, OR FIRST ADD A LITTLE HYDROCHLORIC ACID FOLLOWED BY

    SODIUM CARBONATE IF THE MATERIAL DOES NOT DISSOLVE COMPLETELY.

    ADD CALCIUM CHLORIDE IN EXCESS OF THE AMOUNT NEEDED TO PRECIPITATE

    THE FLUORIDE AND/OR CARBONATE. SEPARATE THE INSOLUBLES AND BURY IN A

    LANDFILL SITE APPROVED FOR HAZARDOUS-WASTE DISPOSAL.

    OBSERVE ALL FEDERAL, STATE AND LOCAL ENVIRONMENTAL REGULATIONS.

SECTION 14. - - - - - - - - - - TRANSPORT INFORMATION - - - - - - - - -

    CONTACT FLUKA CHEMICAL COMPANY FOR TRANSPORTATION INFORMATION.

SECTION 15. - - - - - - - - - REGULATORY INFORMATION - - - - - - - - - -

  EUROPEAN INFORMATION



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               PRODUCT #: 72069        NAME: SODIUM TUNGSTATE DIHYDRATE*

                     MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98

                         Printed Tuesday, March 18, 1903 1:10PM



    HARMFUL

    R 20/21/22

    HARMFUL BY INHALATION, IN CONTACT WITH SKIN AND IF SWALLOWED.

    R 36

    IRRITATING TO EYES.

    S 26

    IN CASE OF CONTACT WITH EYES, RINSE IMMEDIATELY WITH PLENTY OF

    WATER AND SEEK MEDICAL ADVICE.

    S 36

    WEAR SUITABLE PROTECTIVE CLOTHING.

  TLV AND SOURCE

    FOR TUNGSTEN, SOLUBLE COMPOUNDS AS TUNGSTEN:

    ACGIH TLV-TWA: 1 MG/M3; STEL: 3 MG/M3.

    OSHA PEL: TWA 8H 1 MG/M3; STEL: 3 MG/M3.

  REVIEWS, STANDARDS, AND REGULATIONS

    OEL=MAK

    ACGIH TLV-TWA 5 MG(W)/M3; STEL 10 MG(W)/M3    DTLVS* TLV/BEI,1996

    MSHA STANDARD-AIR:TWA 5 MG(W)/M3

     DTLVS* 3,272,1971

    OEL-AUSTRALIA:TWA 5 MG(W)/M3;STEL 10 MG(W)/M3 JAN 1993

    OEL-BELGIUM:TWA 5 MG(W)/M3;STEL 10 MG(W)/M3 JAN 1993

    OEL-DENMARK:TWA 5 MG(W)/M3 JAN 1993

    OEL-FINLAND:TWA 5 MG(W)/M3 JAN 1993

    OEL-THE NETHERLANDS:TWA 5 MG(W)/M3 JAN 1993

    OEL-THE PHILIPPINES:TWA 1 MG(W)/M3 JAN 1993

    OEL-SWEDEN:TWA 5 MG(W)/M3 JAN 1993

    OEL-SWITZERLAND:TWA 5 MG(W)/M3 JAN 1993

    OEL-UNITED KINGDOM:TWA 5 MG(W)/M3;STEL 10 MG(W)/M3 JAN 1993

    OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA CHECK ACGIH TLV

    OEL IN NEW ZEALAND, SINGAPORE, VIETNAM CHECK ACGIH TLV

    NIOSH REL TO TUNGSTEN, SOLUBLE-AIR:10H TWA 1 MG(W)/M3;STEL 3 MG/M3

     NIOSH* DHHS #92-100,1992

    NOES 1983: HZD X2632; NIS 2; TNF 186; NOS 4; TNE 2254; TFE 1653

SECTION 16. - - - - - - - - - - OTHER INFORMATION- - - - - - - - - - - -

    THE ABOVE INFORMATION IS BELIEVED TO BE CORRECT BUT DOES NOT PURPORT TO

    BE ALL INCLUSIVE AND SHALL BE USED ONLY AS A GUIDE. SIGMA, ALDRICH,

    FLUKA SHALL NOT BE HELD LIABLE FOR ANY DAMAGE RESULTING FROM HANDLING

    OR FROM CONTACT WITH THE ABOVE PRODUCT. SEE REVERSE SIDE OF INVOICE OR

    PACKING SLIP FOR ADDITIONAL TERMS AND CONDITIONS OF SALE.

    COPYRIGHT 1997 SIGMA CHEMICAL CO., ALDRICH CHEMICAL CO., INC.,

    FLUKA CHEMIE AG

    LICENSE GRANTED TO MAKE UNLIMITED PAPER COPIES FOR INTERNAL USE ONLY









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