CAS 7440-25-7|tantalum

CHEMICAL IDENTIFICATION

RTECS NUMBER :

WW5505000

CHEMICAL NAME :

Tantalum

CAS REGISTRY NUMBER :

7440-25-7

LAST UPDATED :

199712

DATA ITEMS CITED :

29

MOLECULAR FORMULA :

Ta

MOLECULAR WEIGHT :

180.95

WISWESSER LINE NOTATION :

TA

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Implant

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

3760 mg/kg

REFERENCE :

CNREA8 Cancer Research. (Public Ledger Building, Suit 816, 6th & Chestnut Sts., Philadelphia, PA 19106) V.1- 1941- Volume(issue)/page/year: 16,439,1956 *** REVIEWS *** ACGIH TLV-TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: TLV/BEI,1997 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 5 mg/m3 DTLVS* The Threshold Limit Values (TLVs) and Biological Exposure Indices (BEIs) booklet issues by American Conference of Governmental Industrial Hygienists (ACGIH), Cincinnati, OH, 1996 Volume(issue)/page/year: 3,243,1971 OSHA PEL (Gen Indu):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1000,1994 OSHA PEL (Construc):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1926.55,1994 OSHA PEL (Shipyard):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1915.1000,1993 OSHA PEL (Fed Cont):8H TWA 5 mg/m3 CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 41,50-204.50,1994 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.1 mg/m3 JAN 1993 OEL-AUSTRALIA:TWA 5 mg/m3 JAN 1993 OEL-BELGIUM:TWA 5 mg/m3 JAN 1993 OEL-DENMARK:TWA 5 mg/m3 JAN 1993 OEL-FINLAND:TWA 5 mg/m3 JAN 1993 OEL-FRANCE:TWA 5 mg/m3 JAN 1993 OEL-GERMANY:TWA 5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 5 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 5 mg/m3 JAN 1993 OEL-RUSSIA:STEL 10 mg/m3 JAN 1993 OEL-SWITZERLAND:TWA 5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 5 mg/m3;STEL 10 mg/m3 JAN 1993 OEL IN BULGARIA, COLOMBIA, JORDAN, KOREA check ACGIH TLV OEL IN NEW ZEALAND, SINGAPORE, VIETNAM check ACGIH TLV *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO TANTALUM, metal/oxide dust-air:TWA 5 mg/m3;STEL 10 mg/m3 REFERENCE : NIOSH* National Institute for Occupational Safety and Health, U.S. Dept. of Health, Education, and Welfare, Reports and Memoranda. Volume(issue)/page/year: DHHS #92-100,1992 NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOHS - National Occupational Hazard Survey (1974) NOHS Hazard Code - 71095 No. of Facilities: 28 (estimated) No. of Industries: 2 No. of Occupations: 5 No. of Employees: 597 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X2923 No. of Facilities: 26 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 518 (estimated) No. of Female Employees: 155 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X4238 No. of Facilities: 2 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 35 (estimated) No. of Female Employees: 21 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5917 No. of Facilities: 3 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 400 (estimated) No. of Female Employees: 400 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 71095 No. of Facilities: 275 (estimated) No. of Industries: 13 No. of Occupations: 13 No. of Employees: 7063 (estimated) No. of Female Employees: 1255 (estimated)

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