*** CHEMICAL IDENTIFICATION ***
RTECS NUMBER : QA5075000
CHEMICAL NAME : Molybdic acid, disodium salt
CAS REGISTRY NUMBER : 7631-95-0
LAST UPDATED : 199806
DATA ITEMS CITED : 36
MOLECULAR FORMULA : Mo-O4.2Na
MOLECULAR WEIGHT : 205.92
WISWESSER LINE NOTATION : NA2 MO-O4
COMPOUND DESCRIPTOR : Mutagen
Reproductive Effector
SYNONYMS/TRADE NAMES :
* Disodium molybdate
* Natriummolybdat
* Sodium molybdate
* Sodium molybdate(VI)
*** 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 : 4 gm/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PerDW# Cyprus Copper Company. (9100 East Mineral Circle, P.O. Box 3299,
Englewood, CO 80155) Volume(issue)/page/year: 18JUN1991
TYPE OF TEST : LC50 - Lethal concentration, 50 percent kill
ROUTE OF EXPOSURE : Inhalation
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : >2080 mg/m3/4H
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
PerDW# Cyprus Copper Company. (9100 East Mineral Circle, P.O. Box 3299,
Englewood, CO 80155) Volume(issue)/page/year: 18JUN1991
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 576 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep.
Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intraperitoneal
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 303 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
EQSSDX Environmental Quality and Safety, Supplement. (Stuttgart, Fed. Rep.
Ger.) V.1-5, 1975-76. Discontinued. Volume(issue)/page/year: 1,1,1975
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Subcutaneous
SPECIES OBSERVED : Rodent - mouse
DOSE/DURATION : 570 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
AEPPAE Naunyn-Schmiedeberg's Archiv fuer Experimentelle Pathologie und
Pharmakologie. (Berlin, Ger.) V.110-253, 1925-66. For publisher
information, see NSAPCC. Volume(issue)/page/year: 244,17,1962
TYPE OF TEST : LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE : Intravenous
SPECIES OBSERVED : Mammal - cat
DOSE/DURATION : 917 mg/kg
TOXIC EFFECTS :
Vascular - BP lowering not characterized in autonomic section
Lungs, Thorax, or Respiration - respiratory depression
REFERENCE :
AGSOA6 Agressologie. Revue Internationale de Physio-Biologie et de
Pharmacologie Appliquees aux Effets de l'Agression. (SPPIF, B.P.22, F-41353
Vineuil, France) V.1- 1960- Volume(issue)/page/year: 8,51,1967
** OTHER MULTIPLE DOSE TOXICITY DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Rodent - rat
DOSE/DURATION : 18200 mg/kg/13W-I
TOXIC EFFECTS :
Blood - changes in serum composition (e.g. TP, bilirubin, cholesterol)
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - phosphatases
Biochemical - Enzyme inhibition, induction, or change in blood or tissue
levels - dehydrogenases
REFERENCE :
PHTOEH Pharmacology and Toxicology (Copenhagen). (Munksgaard International
Pub., POB 2148, DK-1016 Copenhagen K, Denmark) V.60- 1987-
Volume(issue)/page/year: 73(Suppl 2),87,1993
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Oral
SPECIES OBSERVED : Mammal - domestic
DOSE/DURATION : 484 mg/kg/21W-I
TOXIC EFFECTS :
Blood - other changes
Musculoskeletal - other changes
Nutritional and Gross Metabolic - weight loss or decreased weight gain
REFERENCE :
JANSAG Journal of Animal Science. (American Soc. of Animal Science, 309 W.
Clark St., Champaign, IL 61820) V.1- 1942- Volume(issue)/page/year:
25,96,1966
** REPRODUCTIVE DATA **
TYPE OF TEST : TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE : Intratesticular
SPECIES OBSERVED : Rodent - mouse
DOSE : 16474 ug/kg
SEX/DURATION : male 1 day(s) pre-mating
TOXIC EFFECTS :
Reproductive - Paternal Effects - testes, epididymis, sperm duct
REFERENCE :
JRPFA4 Journal of Reproduction and Fertility. (Biochemical Soc. Book Depot,
POB 32, Commerce Way, Colchester, Essex CO2 8HP, UK) V.1- 1960-
Volume(issue)/page/year: 7,21,1964
** MUTATION DATA **
TYPE OF TEST : Phage inhibition capacity
TEST SYSTEM : Bacteria - Escherichia coli
DOSE/DURATION : 16 mmol/L
REFERENCE :
ENMUDM Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For
publisher information, see EMMUEG. Volume(issue)/page/year: 6,59,1984
TYPE OF TEST : Sex chromosome loss and nondisjunction
TEST SYSTEM : Yeast - Saccharomyces cerevisiae
DOSE/DURATION : 80 mmol/L
REFERENCE :
MUTAEX Mutagenesis. (Oxford Univ. Press, Pinkhill House, Southfield Road,
Eynsham, Oxford OX8 1JJ, UK) V.1- 1986- Volume(issue)/page/year: 1,21,1986
*** REVIEWS ***
ACGIH TLV-TWA 5 mg(Mo)/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
TOXICOLOGY REVIEW
ADTEAS Advances in Teratology. (New York, NY) V.1-5, 1966-72.
Discontinued. Volume(issue)/page/year: 5,51,1972
*** U.S. STANDARDS AND REGULATIONS ***
MSHA STANDARD-air:TWA 5 mg(Mo)/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:
3,173,1971
OSHA PEL (Gen Indu):8H TWA 5 mg(Mo)/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(Mo)/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(Mo)/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(Mo)/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-AUSTRALIA:TWA 5 mg(Mo)/m3 JAN 1993
OEL-BELGIUM:TWA 5 mg(Mo)/m3 JAN 1993
OEL-DENMARK:TWA 5 mg(Mo)/m3 JAN 1993
OEL-FINLAND:TWA 5 mg(Mo)/m3 JAN 1993
OEL-FRANCE:TWA 5 mg(Mo)/m3;STEL 10 mg(Mo)/m3 JAN 1993
OEL-GERMANY:TWA 5 mg(Mo)/m3 JAN 1993
OEL-THE NETHERLANDS:TWA 5 mg(Mo)/m3 JAN 1993
OEL-THE PHILIPPINES:TWA 5 mg(Mo)/m3 JAN 1993
OEL-SWITZERLAND:TWA 5 mg(Mo)/m3 JAN 1993
OEL-TURKEY:TWA 5 mg(Mo)/m3 JAN 1993
OEL-UNITED KINGDOM:TWA 5 mg(Mo)/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 OCCUPATIONAL EXPOSURE SURVEY DATA :
NOHS - National Occupational Hazard Survey (1974)
NOHS Hazard Code - 81120
No. of Facilities: 1540 (estimated)
No. of Industries: 35
No. of Occupations: 33
No. of Employees: 10443 (estimated)
NOES - National Occupational Exposure Survey (1983)
NOES Hazard Code - 81120
No. of Facilities: 2082 (estimated)
No. of Industries: 55
No. of Occupations: 46
No. of Employees: 33075 (estimated)
No. of Female Employees: 6787 (estimated)
*** STATUS IN U.S. ***
EPA TSCA Section 8(b) CHEMICAL INVENTORY
EPA TSCA Section 8(d) unpublished health/safety studies
EPA TSCA TEST SUBMISSION (TSCATS) DATA BASE, JUNE 1998
*** END OF RECORD ***