CAS 121-45-9|Trimethyl phosphite

CHEMICAL IDENTIFICATION

RTECS NUMBER :

TH1400000

CHEMICAL NAME :

Phosphorous acid, trimethyl ester

CAS REGISTRY NUMBER :

121-45-9

LAST UPDATED :

199712

DATA ITEMS CITED :

29

MOLECULAR FORMULA :

C3-H9-O3-P

MOLECULAR WEIGHT :

124.09

WISWESSER LINE NOTATION :

1OPO1&O1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

REFERENCE :

34ZIAG "Toxicology of Drugs and Chemicals," Deichmann, W.B., New York, Academic Press, Inc., 1969 Volume(issue)/page/year: -,609,1969

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Mammal - species unspecified

REFERENCE :

MEPAAX Medycyna Pracy. Industrial Medicine. (Ars-Polona, POB 1001, 00-068 Warsaw 1, Poland) V.1- 1950- Volume(issue)/page/year: 29,393,1978

TYPE OF TEST :

Standard Draize test

ROUTE OF EXPOSURE :

Administration into the eye

SPECIES OBSERVED :

Mammal - species unspecified

REFERENCE :

MEPAAX Medycyna Pracy. Industrial Medicine. (Ars-Polona, POB 1001, 00-068 Warsaw 1, Poland) V.1- 1950- Volume(issue)/page/year: 29,393,1978 ** ACUTE TOXICITY DATA **

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1600 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

ALBRW* Albright & Wilson Inc. (P.O. Box 26229, Richmond, VA 23260-6229) Volume(issue)/page/year: #OPB-3,1984

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

>10000 ppm/4H

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 34,286,1973

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

4180 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

ENVRAL Environmental Research. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1967- Volume(issue)/page/year: 9,1,1975

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Administration onto the skin

SPECIES OBSERVED :

Rodent - rabbit

DOSE/DURATION :

2600 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 34,286,1973 ** OTHER MULTIPLE DOSE TOXICITY DATA **

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

500 ppm/7.5H/8W-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - emphysema Lungs, Thorax, or Respiration - fibrosis, focal (pneumoconiosis) Skin and Appendages - hair

REFERENCE :

AIHAAP American Industrial Hygiene Association Journal. (AIHA, 475 Wolf Ledges Pkwy., Akron, OH 44311) V.19- 1958- Volume(issue)/page/year: 34,286,1973 ** REPRODUCTIVE DATA **

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1640 mg/kg

SEX/DURATION :

female 6-15 day(s) after conception

TOXIC EFFECTS :

Reproductive - Specific Developmental Abnormalities - Central Nervous System Reproductive - Specific Developmental Abnormalities - craniofacial (including nose and tongue) Reproductive - Specific Developmental Abnormalities - musculoskeletal system

REFERENCE :

TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 72,119,1984

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

DOSE :

1640 mg/kg

SEX/DURATION :

female 6-15 day(s) after conception

REFERENCE :

TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 72,119,1984 *** REVIEWS *** ACGIH TLV-TWA 10 mg/m3 (2 ppm) 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 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-AUSTRALIA:TWA 2 ppm (10 mg/m3) JAN 1993 OEL-BELGIUM:TWA 2 ppm (10 mg/m3) JAN 1993 OEL-DENMARK:TWA 0.5 ppm (2.6 mg/m3) JAN 1993 OEL-FINLAND:TWA 0.5 ppm (2.6 mg/m3);STEL 10 ppm (52 mg/m3);Skin JAN 1993 OEL-FRANCE:TWA 2 ppm (10 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 2 ppm (10 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 2 ppm (10 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 2 ppm (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 TRIMETHYL PHOSPHITE-air:10H TWA 2 ppm 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 - 84215 No. of Facilities: 260 (estimated) No. of Industries: 5 No. of Occupations: 7 No. of Employees: 1891 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 84215 No. of Facilities: 55 (estimated) No. of Industries: 2 No. of Occupations: 18 No. of Employees: 14190 (estimated) No. of Female Employees: 6312 (estimated)

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