thf

MOLECULAR FORMULA :

C4-H8-O

MOLECULAR WEIGHT :

72.12

WISWESSER LINE NOTATION :

T5OTJ

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Human

DOSE/DURATION :

25000 ppm

TOXIC EFFECTS :

Behavioral - general anesthetic

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1650 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

REFERENCE :

GAFCC* GAF Material Safety Data Sheet. (GAF Chemicals Corporation, 1361 Alps Road, Wayne, NJ 07470)

TYPE OF TEST :

LC50 - Lethal concentration, 50 percent kill

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

21000 ppm/3H

TOXIC EFFECTS :

Behavioral - sleep Lungs, Thorax, or Respiration - respiratory stimulation Gastrointestinal - nausea or vomiting

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

2900 mg/kg

TOXIC EFFECTS :

Details of toxic effects not reported other than lethal dose value

TYPE OF TEST :

LCLo - Lowest published lethal concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

24000 mg/m3/2H

TOXIC EFFECTS :

Behavioral - somnolence (general depressed activity) Behavioral - muscle weakness Lungs, Thorax, or Respiration - dyspnea

TYPE OF TEST :

LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :

Intraperitoneal

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

1900 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 - guinea pig

DOSE/DURATION :

2300 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 :

Intraperitoneal

SPECIES OBSERVED :

Rodent - guinea pig

DOSE/DURATION :

500 mg/kg

TOXIC EFFECTS :

Liver - fatty liver degeneration

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

4550 mg/kg/17W-I

TOXIC EFFECTS :

Blood - change in clotting factors Blood - changes in leukocyte (WBC) count Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

1000 ppm/4H/12W-I

TOXIC EFFECTS :

Sense Organs and Special Senses (Olfaction) - deviated nasal septum

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

5000 ppm/6H/91D-I

TOXIC EFFECTS :

Endocrine - changes in spleen weight Endocrine - changes in thymus weight Blood - changes in erythrocyte (RBC) count

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - rat

DOSE/DURATION :

200 ppm/6H/18W-I

TOXIC EFFECTS :

Liver - other changes Musculoskeletal - other changes Biochemical - Enzyme inhibition, induction, or change in blood or tissue levels - multiple enzyme effects

TYPE OF TEST :

TDLo - Lowest published toxic dose

ROUTE OF EXPOSURE :

Oral

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

4550 mg/kg/17W-I

TOXIC EFFECTS :

Blood - change in clotting factors Blood - changes in leukocyte (WBC) count Nutritional and Gross Metabolic - weight loss or decreased weight gain

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

5000 ppm/6H/91D-I

TOXIC EFFECTS :

Liver - changes in liver weight Endocrine - adrenal cortex hypoplasia Endocrine - changes in thymus weight

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

SPECIES OBSERVED :

Rodent - mouse

DOSE/DURATION :

8 gm/m3/2H/60D-I

TOXIC EFFECTS :

Lungs, Thorax, or Respiration - other changes Related to Chronic Data - death

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

5000 ppm/6H

SEX/DURATION :

female 6-19 day(s) after conception

TOXIC EFFECTS :

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

TYPE OF TEST :

TCLo - Lowest published toxic concentration

ROUTE OF EXPOSURE :

Inhalation

DOSE :

1800 ppm/6H

SEX/DURATION :

female 6-17 day(s) after conception

TOXIC EFFECTS :

Reproductive - Fertility - post-implantation mortality (e.g. dead and/or resorbed implants per total number of implants)

MUTATION DATA

TYPE OF TEST :

Mutation in microorganisms

TEST SYSTEM :

Bacteria - Escherichia coli

REFERENCE :

GTPZAB Gigiena Truda i Professional'nye Zabolevaniya. Labor Hygiene and Occupational Diseases. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1-36, 1957-1992. For publisher information, see MTPEEI Volume(issue)/page/year: 26(1),43,1982 *** REVIEWS *** ACGIH TLV-STEL 737 mg/m3 (250 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 ACGIH TLV-TWA 590 mg/m3 (200 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 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 200 ppm (590 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: 3,252,1971 OSHA PEL (Gen Indu):8H TWA 200 ppm (590 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 200 ppm (590 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 200 ppm (590 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 200 ppm (590 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-AUSTRALIA:TWA 200 ppm (590 mg/m3);STEL 250 ppm (735 mg/m3) JAN 1993 OEL-BELGIUM:TWA 200 ppm (590 mg/m3);STEL 250 ppm (738 mg/m3) JAN 1993 OEL-DENMARK:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-FINLAND:TWA 100 ppm (290 mg/m3);STEL 150 ppm (440 mg/m3) JAN 1993 OEL-FRANCE:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-GERMANY:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-HUNGARY:TWA 200 mg/m3;STEL 400 mg/m3 JAN 1993 OEL-JAPAN:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-THE NETHERLANDS:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-THE PHILIPPINES:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-RUSSIA:TWA 200 ppm;STEL 100 mg/m3 JAN 1993 OEL-SWEDEN:TWA 100 ppm (300 mg/m3);STEL 150 ppm (450 mg/m3) JAN 1993 OEL-SWITZERLAND:TWA 200 ppm (590 mg/m3);STEL 1000 ppm JAN 1993 OEL-TURKEY:TWA 200 ppm (590 mg/m3) JAN 1993 OEL-UNITED KINGDOM:TWA 200 ppm (590 mg/m3);STEL 250 ppm 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 TETRAHYDROFURAN-air:10H TWA 200 ppm;STEL 250 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 - 71695 No. of Facilities: 4141 (estimated) No. of Industries: 72 No. of Occupations: 60 No. of Employees: 95003 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 71695 No. of Facilities: 17866 (estimated) No. of Industries: 101 No. of Occupations: 83 No. of Employees: 356038 (estimated) No. of Female Employees: 47382 (estimated)