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Ammonium chronate

Names

[ CAS No. ]:
7788-98-9

[ Name ]:
Ammonium chronate

[Synonym ]:
EINECS 232-138-4
ammonium chromate
MFCD00015958

Chemical & Physical Properties

[ Density]:
1.91 g/mL at 25 °C(lit.)

[ Melting Point ]:
180°C (dec.)

[ Molecular Formula ]:
CrH8N2O4

[ Molecular Weight ]:
152.07100

[ Exact Mass ]:
151.98900

[ PSA ]:
81.08000

[ LogP ]:
0.05660

MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GB2880000
CHEMICAL NAME :
Chromic acid, diammonium salt
CAS REGISTRY NUMBER :
7788-98-9
LAST UPDATED :
199712
DATA ITEMS CITED :
13
MOLECULAR FORMULA :
Cr-O4.2H4-N
MOLECULAR WEIGHT :
152.10
WISWESSER LINE NOTATION :
.Z&2.CR-O4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

MUTATION DATA

TYPE OF TEST :
DNA repair
TEST SYSTEM :
Bacteria - Escherichia coli
REFERENCE :
MUREAV Mutation Research. (Elsevier Science Pub. B.V., POB 211, 1000 AE Amsterdam, Netherlands) V.1- 1964- Volume(issue)/page/year: 133,161,1984 *** 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 *** 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):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: 29,1926.55,1994 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):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: 41,50-204.50,1994 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH RECOMMENDED EXPOSURE LEVEL (REL) : NIOSH REL TO CHROMIUM(VI)-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 - 81703 No. of Facilities: 336 (estimated) No. of Industries: 5 No. of Occupations: 6 No. of Employees: 1603 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81703 No. of Facilities: 31 (estimated) No. of Industries: 1 No. of Occupations: 3 No. of Employees: 2769 (estimated) No. of Female Employees: 349 (estimated)

Safety Information

[ Symbol ]:

GHS03, GHS05, GHS08, GHS09

[ Signal Word ]:
Danger

[ Hazard Statements ]:
H272-H314-H317-H334-H350i-H410

[ Precautionary Statements ]:
P201-P220-P261-P273-P280-P305 + P351 + P338

[ Personal Protective Equipment ]:
Eyeshields;Faceshields;full-face particle respirator type N100 (US);Gloves;respirator cartridge type N100 (US);type P1 (EN143) respirator filter;type P3 (EN 143) respirator cartridges

[ Hazard Codes ]:
O,T,N

[ Risk Phrases ]:
R49

[ Safety Phrases ]:
S53-S17-S45-S60-S61

[ RIDADR ]:
UN 1479 5.1/PG 2

[ WGK Germany ]:
3

[ RTECS ]:
GB2880000

[ Packaging Group ]:
III

[ Hazard Class ]:
5.1

Articles

Nakamura, H.

Bull. Chem. Soc. Jpn. 68 , 997, (1995)


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