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MOLECULAR FORMULA :

B-O3.Na.4H2-O

MOLECULAR WEIGHT :

153.88

WISWESSER LINE NOTATION :

NA B-O3 &QH 4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration into the eye

SPECIES OBSERVED :

Rodent - rabbit

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Human

DOSE/DURATION :

214 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Human - child

DOSE/DURATION :

250 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Human - infant

DOSE/DURATION :

400 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1200 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Behavioral - muscle weakness

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1060 mg/kg

TOXIC EFFECTS :

Behavioral - convulsions or effect on seizure threshold Behavioral - muscle weakness

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

538 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

3 gm/kg

SEX/DURATION :

female 6-15 day(s) after conception

TOXIC EFFECTS :

Reproductive - Maternal Effects - other effects Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants) Reproductive - Effects on Embryo or Fetus - extra-embryonic structures (e.g., placenta, umbilical cord)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

3 gm/kg

SEX/DURATION :

female 6-15 day(s) after conception

TOXIC EFFECTS :

Reproductive - Effects on Embryo or Fetus - fetotoxicity (except death, e.g., stunted fetus)

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

10 gm/kg

SEX/DURATION :

female 6-15 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - musculoskeletal system Reproductive - Specific Developmental Abnormalities - cardiovascular (circulatory) system

MUTATION DATA

TYPE OF TEST :

Mutation in microorganisms

TEST SYSTEM :

Bacteria - Escherichia coli

DOSE/DURATION :

1250 ug/plate

REFERENCE :

MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 412,17,1998 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X8545 No. of Facilities: 703 (estimated) No. of Industries: 5 No. of Occupations: 6 No. of Employees: 3035 (estimated)