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MSDS  : Tantalum
CAS  : 7440-25-7
SYNONYMS  : * Tantalum-181 * Tantalum, metal
*** 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
COMPOUND DESCRIPTOR : Tumorigen
SYNONYMS/TRADE NAMES :
* Tantalum-181
* Tantalum, metal

*** HEALTH HAZARD DATA ***

** TUMORIGENIC DATA **

TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Implant
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 3760 mg/kg
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria
Tumorigenic - tumors at site of application
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)

*** STATUS IN U.S. ***

EPA TSCA Section 8(b) CHEMICAL INVENTORY

EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998


*** END OF RECORD ***
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