7778-43-0

7778-43-0结构式
7778-43-0结构式

化源商城直购

中文名 砷酸氢二钠
英文名 sodium arsenate
英文别名 MFCD00003495
EINECS 231-902-4
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

储存注意事项 储存于阴凉、通风的库房。远离火种、热源。包装密封。应与氧化剂、酸类、食用化学品分开存放,切忌混储。储区应备有合适的材料收容泄漏物。

稳定性

1.稳定性 稳定

2.禁配物 强氧化剂、强酸

3.避免接触的条件 受热

4.聚合危害 不聚合

5.分解产物 氧化砷、氧化钠

更多

1.性状:白色或灰白色粉末

2.熔点(℃):86

3.沸点(℃):150(分解)

4.相对密度(水=1):1.752

5.溶解性:溶于水、甘油,不溶于乙醚,微溶于乙醇。

毒理学数据:

1.急性毒性 暂无资料

2.刺激性 暂无资料

3.致突变性 特异位点试验:果蝇经口100μmol/L。性染色体缺失和不分离:果蝇经口2μmol/L。DNA抑制:人Hela细胞5μmol/L(1h)

4.致癌性 IARC致癌性评论:IARC将砷及其无机化合物列为G1,确认人类致癌物。

5.其他 LDLo:20mg/kg(大鼠静脉内)

生态学数据:

1.生态毒性 暂无资料

2.生物降解性 暂无资料

3.非生物降解性 暂无资料

4.其他有害作用 该物质对环境有危害,应注意对水环境和蓄水层的污染。在对人类重要食物链中,特别是在植物中发生生物蓄积。

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

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

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。

海关编码 2842909017