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MSDS Material Safety Data Sheet
CAS

7782-49-2

File Name: palomar_edu---selenium_pellets.asp
             PRODUCT #: 209643       NAME: SELENIUM, PELLETS, <4MM, 99.99+%
MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98
Printed Thursday, March 13, 1903 4:09PM

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 #: 209643
NAME: SELENIUM, PELLETS, <4MM, 99.99+%
SECTION 2. - - - - - COMPOSITION/INFORMATION ON INGREDIENTS - - - - - -
CAS #: 7782-49-2
MF: SE
EC NO: 231-957-4
SYNONYMS
C.I. 77805 * COLLOIDAL SELENIUM * ELEMENTAL SELENIUM * SELEN (POLISH)
* SELENATE * SELENIUM (ACGIH) * SELENIUM ALLOY * SELENIUM BASE *
SELENIUM DUST * SELENIUM ELEMENTAL * SELENIUM HOMOPOLYMER * SELENIUM
POWDER (DOT) * UN2658 (DOT) * VANDEX *
SECTION 3. - - - - - - - - - - HAZARDS IDENTIFICATION - - - - - - - - -
LABEL PRECAUTIONARY STATEMENTS
TOXIC
TOXIC BY INHALATION, IN CONTACT WITH SKIN AND IF SWALLOWED.
POSSIBLE RISK OF IRREVERSIBLE EFFECTS.
POSSIBLE TERATOGEN.
TARGET ORGAN(S):
NERVES
LIVER
IN CASE OF ACCIDENT OR IF YOU FEEL UNWELL, SEEK MEDICAL ADVICE
IMMEDIATELY (SHOW THE LABEL WHERE POSSIBLE).
IN CASE OF CONTACT WITH EYES, RINSE IMMEDIATELY WITH PLENTY OF
WATER AND SEEK MEDICAL ADVICE.
AFTER CONTACT WITH SKIN, WASH IMMEDIATELY WITH PLENTY OF WATER.
WEAR SUITABLE PROTECTIVE CLOTHING, GLOVES AND EYE/FACE
PROTECTION.
STORE UNDER NITROGEN.
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.
ASSURE ADEQUATE FLUSHING OF THE EYES BY SEPARATING THE EYELIDS
WITH FINGERS.
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.
DISCARD CONTAMINATED CLOTHING AND SHOES.
SECTION 5. - - - - - - - - - FIRE FIGHTING MEASURES - - - - - - - - - -
EXTINGUISHING MEDIA
USE EXTINGUISHING MEDIA APPROPRIATE TO SURROUNDING FIRE CONDITIONS.
NONCOMBUSTIBLE.
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.

Page 1
PRODUCT #: 209643 NAME: SELENIUM, PELLETS, <4MM, 99.99+%
MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98
Printed Thursday, March 13, 1903 4:09PM

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- - - - - -
CHEMICAL SAFETY GOGGLES.
NIOSH/MSHA-APPROVED RESPIRATOR.
LONG RUBBER OR NEOPRENE GAUNTLET GLOVES.
IMPERVIOUS PROTECTIVE CLOTHING.
SAFETY SHOWER AND EYE BATH.
USE ONLY IN A CHEMICAL FUME HOOD.
AVOID INHALATION.
DO NOT GET IN EYES, ON SKIN, ON CLOTHING.
READILY ABSORBED THROUGH SKIN.
WASH THOROUGHLY AFTER HANDLING.
TOXIC.
POSSIBLE TERATOGEN.
KEEP TIGHTLY CLOSED.
STORE UNDER NITROGEN.
SECTION 9. - - - - - - - PHYSICAL AND CHEMICAL PROPERTIES - - - - - - -
APPEARANCE AND ODOR
REDDISH-GREY PELLETS
PHYSICAL PROPERTIES
MELTING POINT: 217 C
SPECIFIC GRAVITY: 4.810
SECTION 10. - - - - - - - - -STABILITY AND REACTIVITY - - - - - - - - -
INCOMPATIBILITIES
STRONG OXIDIZING AGENTS
AVOID CONTACT WITH ACID.
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.
EXPOSURE CAN CAUSE:
STOMACH PAINS, VOMITING, DIARRHEA.
COUGHING, CHEST PAINS, DIFFICULTY IN BREATHING.
LUNG IRRITATION
DERMATITIS
ACUTE SELENIUM POISONING PRODUCES CENTRAL NERVOUS SYSTEM EFFECTS,
WHICH INCLUDE NERVOUSNESS, CONVULSIONS AND DROWSINESS. OTHER SIGNS OF
INTOXICATION CAN INCLUDE SKIN ERUPTIONS, LASSITUDE, GASTROINTESTINAL
DISTRESS, TEETH THAT ARE DISCOLORED OR DECAYED, ODOROUS ("GARLIC")
BREATH, PARTIAL LOSS OF HAIR AND NAILS. CHRONIC EXPOSURE BY INHALATION
CAN PRODUCE SYMPTOMS THAT INCLUDE PALLOR, COATING OF THE TONGUE, AN-
EMIA, IRRITATION OF THE MUCOSA, LUMBAR PAIN, LIVER AND SPLEEN DAMAGE
AS WELL AS ANY OF THE OTHER PREVIOUSLY MENTIONED SYMPTOMS.
CHRONIC EFFECTS
OVEREXPOSURE MAY CAUSE REPRODUCTIVE DISORDER(S) BASED ON TESTS WITH
LABORATORY ANIMALS.
ANEMIA
TARGET ORGAN(S):

Page 2
PRODUCT #: 209643 NAME: SELENIUM, PELLETS, <4MM, 99.99+%
MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98
Printed Thursday, March 13, 1903 4:09PM

CENTRAL NERVOUS SYSTEM
LIVER
SPLEEN
G.I. SYSTEM
TEETH
RTECS #: VS7700000
SELENIUM
TOXICITY DATA
ORL-RAT LD50:6700 MG/KG TXAPA9 20,89,1971
IVN-RAT LD50:6 MG/KG AMIHBC 4,458,1951
TARGET ORGAN DATA
SKIN AND APPENDAGES (TUMORS)
EFFECTS ON EMBRYO OR FETUS (FETOTOXICITY)
EFFECTS ON EMBRYO OR FETUS (FETAL DEATH)
TUMORIGENIC (EQUIVOCAL TUMORIGENIC AGENT BY RTECS CRITERIA)
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 - - - - - - - - -
MATERIAL IN THE ELEMENTAL STATE SHOULD BE RECOVERED FOR REUSE OR
RECYCLING.
OBSERVE ALL FEDERAL, STATE AND LOCAL ENVIRONMENTAL REGULATIONS.
SECTION 14. - - - - - - - - - - TRANSPORT INFORMATION - - - - - - - - -
CONTACT ALDRICH CHEMICAL COMPANY FOR TRANSPORTATION INFORMATION.
SECTION 15. - - - - - - - - - REGULATORY INFORMATION - - - - - - - - - -
EUROPEAN INFORMATION
EC INDEX NO: 034-001-00-2
TOXIC
R 23/25
TOXIC BY INHALATION AND IF SWALLOWED.
R 33
DANGER OF CUMULATIVE EFFECTS.
S 20/21
WHEN USING DO NOT EAT, DRINK OR SMOKE.
S 28
AFTER CONTACT WITH SKIN, WASH IMMEDIATELY WITH PLENTY OF WATER.
S 45
IN CASE OF ACCIDENT OR IF YOU FEEL UNWELL, SEEK MEDICAL ADVICE
IMMEDIATELY (SHOW THE LABEL WHERE POSSIBLE).
REVIEWS, STANDARDS, AND REGULATIONS
OEL=MAK
ACGIH TLV-TWA 0.2 MG/M3 DTLVS* TLV/BEI,1996
IARC CANCER REVIEW:HUMAN INADEQUATE EVIDENCE IMEMDT 9,245,1975
IARC CANCER REVIEW:ANIMAL INADEQUATE EVIDENCE IMEMDT 9,245,1975
IARC CANCER REVIEW:GROUP 3 IMSUDL 7,56,1987
MSHA STANDARD-AIR:TWA 0.2 MG(SE)/M3
DTLVS* 3,224,1971
OSHA PEL (GEN INDU):8H TWA 0.2 MG(SE)/M3
CFRGBR 29,1910.1000,1994
OSHA PEL (CONSTRUC):8H TWA 0.2 MG(SE)/M3
CFRGBR 29,1926.55,1994
OSHA PEL (SHIPYARD):8H TWA 0.2 MG(SE)/M3
CFRGBR 29,1915.1000,1993
OSHA PEL (FED CONT):8H TWA 0.2 MG(SE)/M3
CFRGBR 41,50-204.50,1994

Page 3
PRODUCT #: 209643 NAME: SELENIUM, PELLETS, <4MM, 99.99+%
MATERIAL SAFETY DATA SHEET, Valid 11/97 - 1/98
Printed Thursday, March 13, 1903 4:09PM

OEL-ARAB REPUBLIC OF EGYPT:TWA 0.2 MG/M3 JAN 1993
OEL-AUSTRALIA:TWA 0.2 MG(SE)/M3 JAN 1993
OEL-BELGIUM:TWA 0.2 MG/M3 JAN 1993
OEL-DENMARK:TWA 0.1 MG/M3 JAN 1993
OEL-FINLAND:TWA 0.1 MG/M3;STEL 0.3 MG/M3 JAN 1993
OEL-GERMANY:TWA 0.1 MG/M3 JAN 1993
OEL-HUNGARY:STEL 0.1 MG/M3 JAN 1993
OEL-THE NETHERLANDS:TWA 0.2 MG/M3 JAN 1993
OEL-THE PHILIPPINES:TWA 0.2 MG/M3 JAN 1993
OEL-POLAND:TWA 0.1 MG/M3 JAN 1993
OEL-SWEDEN:TWA 0.1 MG/M3 JAN 1993
OEL-SWITZERLAND:TWA 0.1 MG/M3 JAN 1993
OEL-TURKEY:TWA 0.2 MG/M3 JAN 1993
OEL-UNITED KINGDOM:TWA 0.1 MG/M3 JAN 1993
OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA CHECK ACGIH TLV
OEL IN NEW ZEALAND, SINGAPORE, VIETNAM CHECK ACGIH TLV
NIOSH REL TO SELENIUM COMPOUNDS (AS SE)-AIR:10H TWA 0.2 MG/M3
NIOSH* DHHS #92-100,1992
NOHS 1974: HZD 68295; NIS 8; TNF 403; NOS 10; TNE 2147
NOES 1983: HZD X2074; NIS 2; TNF 105; NOS 2; TNE 105
NOES 1983: HZD 68295; NIS 23; TNF 1102; NOS 68; TNE 27208; TFE 9632
ATSDR TOXICOLOGY PROFILE (NTIS** PB/90/182155/AS)
EPA TSCA SECTION 8(B) CHEMICAL INVENTORY
EPA TSCA SECTION 8(D) UNPUBLISHED HEALTH/SAFETY STUDIES
ON EPA IRIS DATABASE
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, APRIL 1997
NIOSH ANALYTICAL METHOD, 1994: ELEMENTS BY ICP, 7300
OSHA ANALYTICAL METHOD #ID-125G
U.S. INFORMATION
THIS PRODUCT IS SUBJECT TO SARA SECTION 313 REPORTING REQUIREMENTS.
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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