chromic acid

Modify Date: 2024-01-02 11:42:23

chromic acid Structure
chromic acid structure
Common Name chromic acid
CAS Number 7738-94-5 Molecular Weight 118.01000
Density N/A Boiling Point 330ºC
Molecular Formula CrH2O4 Melting Point 196ºC (dec.)(lit.)
MSDS N/A Flash Point 250ºC

 Names

Name chromic acid
Synonym More Synonyms

 Chemical & Physical Properties

Boiling Point 330ºC
Melting Point 196ºC (dec.)(lit.)
Molecular Formula CrH2O4
Molecular Weight 118.01000
Flash Point 250ºC
Exact Mass 117.93600
PSA 74.60000
Water Solubility HIGHLY Soluble

 Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GB2450000
CHEMICAL NAME :
Chromic acid (H2CrO4)
CAS REGISTRY NUMBER :
7738-94-5
LAST UPDATED :
199712
DATA ITEMS CITED :
18
MOLECULAR FORMULA :
Cr-H2-O4
MOLECULAR WEIGHT :
118.02
WISWESSER LINE NOTATION :
H2 CR-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Mammal - dog
DOSE/DURATION :
320 mg/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value

MUTATION DATA

TYPE OF TEST :
DNA repair
TEST SYSTEM :
Yeast - Schizosaccharomyces pombe
REFERENCE :
CNJGA8 Canadian Journal of Genetics and Cytology. (National Research Council of Canada, Publication Sales and Distribution, Ottawa ON K1A OR6, Canada) V.1- 1959- Volume(issue)/page/year: 24,771,1982 *** REVIEWS *** ACGIH TLV-TWA 0.05 mg(Cr)/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 ACGIH TLV-Confirmed human carcinogen 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 *** EPA FIFRA 1988 PESTICIDE SUBJECT TO REGISTRATION OR RE-REGISTRATION FEREAC Federal Register. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) V.1- 1936- Volume(issue)/page/year: 54,7740,1989 MSHA STANDARD-air:TWA 0.5 mg(Cr)/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: 3,35,1971 OSHA PEL (Gen Indu):CL 0.1 mg(CrO3)/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 0.1 mg(CrO3)/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):CL 0.1 mg(CrO3)/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 0.1 mg(CrO3)/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 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO CHROMIC ACID-air:10H CA TWA 0.001 mg(Cr)/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 - 19360 No. of Facilities: 6762 (estimated) No. of Industries: 108 No. of Occupations: 76 No. of Employees: 51589 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 19360 No. of Facilities: 6020 (estimated) No. of Industries: 105 No. of Occupations: 84 No. of Employees: 126538 (estimated) No. of Female Employees: 19927 (estimated)

 Safety Information

RIDADR UN 1463/1755

 Synonyms

Jones reagent
5H-[1]Benzopyrano[3,4-b]pyridin-5-one
EINECS 231-801-5
Chromic acid
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