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 #:             B4885

   NAME:             BARIUM CARBONATE

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

   CAS #: 513-77-9

   EC NO: 208-167-3

 SYNONYMS

   BARIUM CARBONATE * CARBONIC ACID, BARIUM SALT (1:1) * C.I. 77099 *

C.

   I. PIGMENT WHITE 10 *

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

 LABEL PRECAUTIONARY STATEMENTS

   TOXIC (USA)

   HARMFUL (EU)

   HARMFUL BY INHALATION, IN CONTACT WITH SKIN AND IF

SWALLOWED.

   IRRITATING TO EYES, RESPIRATORY SYSTEM AND SKIN.

   TARGET ORGAN(S):

   HEART

   NERVES

   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 OR SKIN WITH

COPIOUS

   AMOUNTS OF WATER FOR AT LEAST 15 MINUTES WHILE REMOVING

CONTAMINATED

   CLOTHING AND SHOES.

   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 IMMEDIATELY.

   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- - - - - - - - -

  EVACUATE AREA.

  WEAR SELF-CONTAINED BREATHING APPARATUS, 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- - - - - -

  WEAR APPROPRIATE NIOSH/MSHA-APPROVED RESPIRATOR, CHEMICAL-

RESISTANT

  GLOVES, SAFETY GOGGLES, OTHER PROTECTIVE CLOTHING.

  SAFETY SHOWER AND EYE BATH.

  USE ONLY IN A CHEMICAL FUME HOOD.

  DO NOT BREATHE DUST.

  AVOID CONTACT WITH EYES, SKIN AND CLOTHING.

  AVOID PROLONGED OR REPEATED EXPOSURE.

  WASH THOROUGHLY AFTER HANDLING.

  TOXIC.

  IRRITANT.

  KEEP TIGHTLY CLOSED.

  STORE IN A COOL DRY PLACE.

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

 APPEARANCE AND ODOR

  WHITE POWDER

 PHYSICAL PROPERTIES

  SPECIFIC GRAVITY: 4.430

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

 INCOMPATIBILITIES

  STRONG ACIDS

 HAZARDOUS COMBUSTION OR DECOMPOSITION PRODUCTS

  CARBON MONOXIDE, CARBON DIOXIDE

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

 ACUTE EFFECTS

  HARMFUL IF SWALLOWED, INHALED, OR ABSORBED THROUGH SKIN.

  CAUSES EYE AND SKIN IRRITATION.

  MATERIAL IS IRRITATING TO MUCOUS MEMBRANES AND UPPER

  RESPIRATORY TRACT.

  EXPOSURE CAN CAUSE:

  STOMACH PAINS, VOMITING, DIARRHEA.

  TARGET ORGAN(S):

  HEART

  NERVES

  KIDNEYS

  G.I. SYSTEM

  BONE MARROW

  SPLEEN

  LIVER

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

  TOXICOLOGICAL PROPERTIES HAVE NOT BEEN THOROUGHLY

INVESTIGATED.

 RTECS #: CQ8600000

  BARIUM CARBONATE (1:1)

 TOXICITY DATA

  ORL-MAN LDLO:800 MG/KG             YKYUA6 28,329,1977

  ORL-HMN LDLO:17 MG/KG              YKYUA6 28,329,1977

  ORL-RAT LD50:418 MG/KG            85GMAT -,23,1982

  ORL-MUS LD50:200 MG/KG            85GMAT -,23,1982

  IPR-MUS LD50:50 MG/KG            85GMAT -,23,1982

 TARGET ORGAN DATA

  PERIPHERAL NERVE AND SENSATION (FLACCID PARALYSIS WITHOUT

ANESTHESIA)

  PERIPHERAL NERVE AND SENSATION (PARESTHESIA)

  BEHAVIORAL (CONVULSIONS OR EFFECT ON SEIZURE THRESHOLD)

  BEHAVIORAL (MUSCLE WEAKNESS)

  CARDIAC (CHANGE IN RATE)

  CARDIAC (OTHER CHANGES)

  LUNGS, THORAX OR RESPIRATION (OTHER CHANGES)

  GASTROINTESTINAL (ULCERATION OR BLEEDING FROM STOMACH)

  GASTROINTESTINAL (HYPERMOTILITY, DIARRHEA)

  GASTROINTESTINAL (NAUSEA OR VOMITING)

  PATERNAL EFFECTS (SPERMATOGENESIS)

  PATERNAL EFFECTS (TESTES, EPIDIDYMIS, SPERM DUCT)

  MATERNAL EFFECTS (OOGENESIS)

  MATERNAL EFFECTS (OVARIES, FALLOPIAN TUBES)

  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 - - - - - - - - -

  CONTACT A LICENSED PROFESSIONAL WASTE DISPOSAL SERVICE TO

DISPOSE OF

  THIS MATERIAL.

  OBSERVE ALL FEDERAL, STATE AND LOCAL ENVIRONMENTAL

REGULATIONS.

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

  CONTACT SIGMA CHEMICAL COMPANY FOR TRANSPORTATION

INFORMATION.

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

 EUROPEAN INFORMATION

  EC INDEX NO: 056-003-00-2

  HARMFUL

  R 22

  HARMFUL IF SWALLOWED.

  S 24/25

  AVOID CONTACT WITH SKIN AND EYES.

 REVIEWS, STANDARDS, AND REGULATIONS

  OEL=MAK

  ACGIH TLV-TWA 0.5 MG(BA)/M3                  DTLVS* TLV/BEI,1996

  ACGIH TLV-NOT CLASSIFIABLE AS A HUMAN CARCINOGEN DTLVS*

TLV/BEI,1996

  MSHA STANDARD-AIR:TWA 0.5 MG(BA)/M3

  DTLVS* 3,21,1971

  OSHA PEL (GEN INDU):8H TWA 0.5 MG(BA)/M3

  CFRGBR 29,1910.1000,1994

  OSHA PEL (CONSTRUC):8H TWA 0.5 MG(BA)/M3

  CFRGBR 29,1926.55,1994

  OSHA PEL (SHIPYARD):8H TWA 0.5 MG(BA)/M3

  CFRGBR 29,1915.1000,1993

  OSHA PEL (FED CONT):8H TWA 0.5 MG(BA)/M3

  CFRGBR 41,50-204.50,1994

  OEL-AUSTRALIA:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-AUSTRIA:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-BELGIUM:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-DENMARK:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-FINLAND:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-GERMANY:TWA 0.5 MG(BA)/M3 (TOTAL DUST) JAN 1993

  OEL-HUNGARY:STEL 0.5 MG(BA)/M3 JAN 1993

  OEL-THE NETHERLANDS:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-THE PHILIPPINES:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-POLAND:TWA 0.5 MG(BA)/M3;STEL 1.5 MG(BA)/M3 JAN 1993

  OEL-RUSSIA:STEL 0.5 MG/M3 JAN 1993

  OEL-SWITZERLAND:TWA 0.5 MG(BA)/M3;STEL 1 MG(BA)/M3 JAN 1993

  OEL-TURKEY:TWA 0.5 MG(BA)/M3 JAN 1993

  OEL-UNITED KINGDOM:TWA 0.5 MG(BA)/M3 JAN 1993

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

  OEL IN NEW ZEALAND, SINGAPORE, VIETNAM CHECK ACGIH TLV

  NOHS 1974: HZD 08640; NIS 28; TNF 993; NOS 38; TNE 14843

  NOES 1983: HZD 08640; NIS 97; TNF 5689; NOS 61; TNE 88778; TFE 13598

  EPA TSCA SECTION 8(B) CHEMICAL INVENTORY

 U.S. INFORMATION

  THIS PRODUCT IS SUBJECT TO SARA SECTION 313 REPORTING

REQUIREMENTS -

  BARIUM COMPOUNDS.

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