RTECS NUMBER : YO7760000
CHEMICAL NAME : Tungsten oxide
CAS REGISTRY NUMBER : 1314-35-8
LAST UPDATED : 199712
DATA ITEMS CITED : 19
MOLECULAR FORMULA : O3-W
MOLECULAR WEIGHT : 231.85
WISWESSER LINE NOTATION : .WO..O3
SYNONYMS/TRADE NAMES :
* C.I. 77901
* Tungsten Blue
* Tungsten trioxide
* Tungstic acid
* Tungstic anhydride
* Tungstic oxide
*** HEALTH HAZARD DATA ***
** ACUTE TOXICITY DATA **
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 1059 mg/kg
TOXIC EFFECTS :
Behavioral - somnolence (general depressed activity)
Behavioral - excitement
Behavioral - muscle weakness
REFERENCE :
HYSAAV Hygiene and Sanitation (USSR). English translation of GISAAA.
(Springfield, VA) 1964-71. Discontinued. Volume(issue)/page/year:
31(7-9),197,1966
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Unreported
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 2 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 48(7),71,1983
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TCLo - Lowest published toxic concentration
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 490 ug/m3/24H/15W-C
TOXIC EFFECTS :
Liver - liver function tests impaired
Blood - changes in leukocyte (WBC) count
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - true cholinesterase
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O
Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936-
Volume(issue)/page/year: 48(7),71,1983
*** REVIEWS ***
ACGIH TLV-TWA 5 mg(W)/m3; STEL 10 mg(W)/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(W)/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:
3,272,1971
*** OCCUPATIONAL EXPOSURE LIMITS ***
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 STANDARDS DEVELOPMENT AND SURVEILLANCE DATA ***
NIOSH RECOMMENDED EXPOSURE LEVEL (REL) :
NIOSH REL TO TUNGSTEN, insoluble-air:TWA 5 mg(W)/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 - 84213
No. of Facilities: 21 (estimated)
No. of Industries: 1
No. of Occupations: 1
No. of Employees: 21 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
*** END OF RECORD ***
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