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7440-47-3

7440-47-3 structure
7440-47-3 structure

Name chromium atom
Synonyms Chromium metal
EINECS 231-157-5
MFCD00010944
Chromium
Chrome
Chrom
cromo
Density 7.14 g/mL at 25 °C(lit.)
Boiling Point 2200 ºC
Melting Point 1890 ºC
Molecular Formula Cr
Molecular Weight 51.99610
Flash Point 50 °F
Exact Mass 51.94050
Stability Stable. Incompatible with carbonates, strong bases, mineral acids, lithium, sulfur dioxide, strong acids.

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GB4200000
CHEMICAL NAME :
Chromium
CAS REGISTRY NUMBER :
7440-47-3
LAST UPDATED :
199712
DATA ITEMS CITED :
54
MOLECULAR FORMULA :
Cr
MOLECULAR WEIGHT :
52.00
WISWESSER LINE NOTATION :
CR

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LD50 - Lethal dose, 50 percent kill
ROUTE OF EXPOSURE :
Unreported
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
27500 ug/kg
TOXIC EFFECTS :
Details of toxic effects not reported other than lethal dose value
REFERENCE :
GISAAA Gigiena i Sanitariya. For English translation, see HYSAAV. (V/O Mezhdunarodnaya Kniga, 113095 Moscow, USSR) V.1- 1936- Volume(issue)/page/year: 37(10),27,1972 ** TUMORIGENIC DATA **
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Intravenous
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
2160 ug/kg/6W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Gastrointestinal - tumors Blood - lymphoma, including Hodgkin's disease
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 16,447,1955
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Implant
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
1200 ug/kg/6W-I
TOXIC EFFECTS :
Tumorigenic - equivocal tumorigenic agent by RTECS criteria Blood - lymphoma, including Hodgkin's disease Tumorigenic - tumors at site of application
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 16,447,1955
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Implant
SPECIES OBSERVED :
Rodent - rabbit
DOSE/DURATION :
75 mg/kg
REFERENCE :
ZEKBAI Zeitschrift fuer Krebsforschung. (Berlin, Fed. Rep. Ger.) V.1-75, 1903-71. For publisher information, see JCROD7. Volume(issue)/page/year: 52,425,1942 *** REVIEWS *** ACGIH TLV-Not classifiable as a 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 ACGIH TLV-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: TLV/BEI,1997 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 23,205,1980 IARC Cancer Review:Animal Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 49,49,1990 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 23,205,1980 IARC Cancer Review:Human Inadequate Evidence IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 49,49,1990 IARC Cancer Review:Group 3 IMEMDT IARC Monographs on the Evaluation of Carcinogenic Risk of Chemicals to Man. (WHO Publications Centre USA, 49 Sheridan Ave., Albany, NY 12210) V.1- 1972- Volume(issue)/page/year: 49,49,1990 TOXICOLOGY REVIEW 85CVA2 "Oncology 1970, Proceedings of the Tenth International Cancer Congress," Chicago, Year Book Medical Pub., 1971 Volume(issue)/page/year: 5,63,1970 TOXICOLOGY REVIEW KOTTAM Kogai to Taisaku. Journal of Environmental Pollution Control. (Kogai Taisaku Gijutsu Dokokai, Shuwa-Akasaka Bldg., 9-1-244, Akasaka, Minato-ku, Tokyo 107, Japan) V.1- 1965- Volume(issue)/page/year: 11,1300,1975 TOXICOLOGY REVIEW FOREAE Food Research. (Champaign, IL) V.1-25, 1936-60. For publisher information, see JFDSAZ. Volume(issue)/page/year: 7,313,1942 TOXICOLOGY REVIEW MIBUBI Mikrobiyoloji Bulteni. Bulletin of Microbiology. (c/o Dr. A. Tevfik Cenqiz, Ankara Universitesi Tip Fakultesi Mikrobiyoloji Ana Bilim Dah, Ankara, Turkey) V.1- 1967- Volume(issue)/page/year: 9,321,1975 TOXICOLOGY REVIEW FCTXAV Food and Cosmetics Toxicology. (London, UK) V.1-19, 1963-81. For publisher information, see FCTOD7. Volume(issue)/page/year: 9,105,1971 TOXICOLOGY REVIEW PEXTAR Progress in Experimental Tumor Research. (S. Karger AG, Postfach CH-4009 Basel, Switzerland) V.1- 1960- Volume(issue)/page/year: 12,102,1969 TOXICOLOGY REVIEW 85DHAX "Medical and Biologic Effects of Environmental Pollutants Series," Washington, DC, National Academy of Sciences, 1972-77 Volume(issue)/page/year: Cr,22,1974 TOXICOLOGY REVIEW BNYMAM Bulletin of the New York Academy of Medicine. (New York Academy of Medicine, 2 E. 103rd St., New York, NY 10029) Ser 2: V.1- 1925- Volume(issue)/page/year: 54,413,1978 TOXICOLOGY REVIEW NTIS** National Technical Information Service. (Springfield, VA 22161) Formerly U.S. Clearinghouse for Scientific & Technical Information. Volume(issue)/page/year: CONF-691001 *** U.S. STANDARDS AND REGULATIONS *** MSHA STANDARD-air:TWA 0.5 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: 3,56,1971 OSHA PEL (Gen Indu):8H TWA 1 mg(Cr)/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 1 mg(Cr)/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 1 mg(Cr)/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 1 mg(Cr)/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-ARAB Republic of Egypt:TWA 0.05 mg/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.05 mg/m3 JAN 1993 OEL-BELGIUM:TWA 0.5 mg/m3 JAN 1993 OEL-DENMARK:TWA 0.5 mg/m3 JAN 1993 OEL-FINLAND:TWA 0.01 mg/m3 JAN 1993 OEL-FRANCE:TWA 0.5 mg/m3 JAN 1993 OEL-JAPAN:TWA 0.5 mg/m3 JAN 1993 OEL-THE NETHERLANDS:TWA 0.5 mg/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 1 mg/m3 JAN 1993 OEL-SWEDEN:TWA 0.5 mg/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.5 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 CHROMIUM METAL-air:10H TWA 0.5 mg/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 - 19395 No. of Facilities: 1375 (estimated) No. of Industries: 43 No. of Occupations: 49 No. of Employees: 16576 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5981 No. of Facilities: 318 (estimated) No. of Industries: 10 No. of Occupations: 6 No. of Employees: 2034 (estimated) No. of Female Employees: 3 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X5982 No. of Facilities: 19 (estimated) No. of Industries: 1 No. of Occupations: 2 No. of Employees: 2379 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 19395 No. of Facilities: 25576 (estimated) No. of Industries: 228 No. of Occupations: 101 No. of Employees: 386142 (estimated) No. of Female Employees: 10433 (estimated)
Symbol GHS09
GHS09
Signal Word Warning
Hazard Statements H410
Personal Protective Equipment Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter
Hazard Codes Xn:Harmful
Risk Phrases R40
Safety Phrases S16-S26-S36/37/39-S45-S36/37-S27
RIDADR UN 2924 3/PG 2
WGK Germany 3
RTECS GB4200000
Packaging Group III
Hazard Class 4.1
HS Code 8112210000
HS Code 8112210000