砷酸钠
砷酸钠用途
用作钢铁分析试剂
砷酸钠名称
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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