砷酸钠

砷酸钠用途

用作钢铁分析试剂

砷酸钠名称

[ CAS 号 ]:
7778-43-0

[ 中文名 ]:
砷酸氢二钠

[ 英文名 ]:
sodium arsenate

[英文别名 ]:

砷酸钠物理化学性质

[ 密度 ]:
1.752

[ 熔点 ]:
86.3ºC

[ 分子式 ]:
AsH3O4

[ 分子量 ]:
141.94300

[ 精确质量 ]:
141.92500

[ PSA ]:
77.76000

[ 储存条件 ]:
库房通风低温干燥,与碱、酸类、食品添加剂分开存放

砷酸钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :
CG0875000
CHEMICAL NAME :
Arsenic acid, disodium salt
CAS REGISTRY NUMBER :
7778-43-0
LAST UPDATED :
199712
DATA ITEMS CITED :
48
MOLECULAR FORMULA :
As-H-O4.2Na
MOLECULAR WEIGHT :
185.91
WISWESSER LINE NOTATION :
NA2 AS-O3-Q

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
LDLo - Lowest published lethal dose
ROUTE OF EXPOSURE :
Intraperitoneal
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
34720 ug/kg
TOXIC EFFECTS :
Behavioral - muscle contraction or spasticity Lungs, Thorax, or Respiration - cyanosis Lungs, Thorax, or Respiration - other changes
TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Oral
SPECIES OBSERVED :
Rodent - rat
DOSE/DURATION :
450 mg/kg/90D-C
TOXIC EFFECTS :
Brain and Coverings - other degenerative changes Biochemical - Metabolism (Intermediary) - amino acids (including renal excretion) Biochemical - Neurotransmitters or modulators (putative) - catecholamine levels in CNS
TYPE OF TEST :
Specific locus test
TYPE OF TEST :
Specific locus test
TYPE OF TEST :
DNA inhibition
TYPE OF TEST :
Mutation test systems - not otherwise specified

MUTATION DATA

TYPE OF TEST :
Sister chromatid exchange
TEST SYSTEM :
Rodent - hamster Ovary
REFERENCE :
ENMUDM Environmental Mutagenesis. (New York, NY) V.1-9, 1979-87. For publisher information, see EMMUEG. Volume(issue)/page/year: 4,493,1982 *** REVIEWS *** ACGIH TLV-TWA 0.01 mg(As)/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(As)/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: 3,16,1971 OSHA-cancer hazard CFRGBR Code of Federal Regulations. (U.S. Government Printing Office, Supt. of Documents, Washington, DC 20402) Volume(issue)/page/year: 29,1910.1018,1987 *** OCCUPATIONAL EXPOSURE LIMITS *** OEL-ARAB Republic of Egypt:TWA 0.2 mg(As)/m3 JAN 1993 OEL-AUSTRALIA:TWA 0.05 mg(As)/m3;Carcinogen JAN 1993 OEL-BELGIUM:TWA 0.2 mg(As)/m3 JAN 1993 OEL-DENMARK:TWA 0.05 mg(As)/m3 JAN 1993 OEL-FINLAND;Carcinogen JAN 1993 OEL-FRANCE:TWA 0.2 mg(As)/m3 JAN 1993 OEL-HUNGARY:STEL 0.5 mg(As)/m3;Carcinogen JAN 1993 OEL-INDIA:TWA 0.2 mg(As)/m3 JAN 1993 OEL-THE PHILIPPINES:TWA 0.5 mg(As)/m3 JAN 1993 OEL-POLAND:TWA 0.3 mg(As)/m3 JAN 1993 OEL-SWEDEN:TWA 0.03 mg(As)/m3;Carcinogen JAN 1993 OEL-SWITZERLAND:TWA 0.1 mg(As)/m3;Carcinogen JAN 1993 OEL-THAILAND:TWA 0.5 mg(As)/m3 JAN 1993 OEL-TURKEY:TWA 0.5 mg(As)/m3 JAN 1993 OEL-UNITED KINGDOM:TWA 0.2 mg(As)/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 ARSENIC, INORGANIC-air:CA CL 0.002 mg(As)/m3/15M 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

砷酸钠安全信息

[ 危险品运输编码 ]:
UN 1685

[ 包装等级 ]:
II

[ 危险类别 ]:
6.1(a)

[ 海关编码 ]:
2842909017

砷酸钠制备

制法 用化学计量的氢氧化钠水溶液中和砷酸氢二钠Na2HAsO4的浓水溶液。再将中和后的溶液蒸发使之结晶,然后在热水中进行重结晶。或者,在尽可能隔绝空气条件下,用过量的氢氧化钠中和砷酸水溶液。利用这种方法,可制得十二水合物。

砷酸钠海关

[ 海关编码 ]: 2842909017

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