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羟基亚乙基二膦酸四钠

羟基亚乙基二膦酸四钠用途

【用途一】
能与多种金属离子络合。在冷却水，锅炉水处理中作阻垢剂。耐热性好。200℃仍有良好作用。亦可作为缓蚀剂，无氰电镀添加剂。

羟基亚乙基二膦酸四钠名称

[ CAS 号 ]:
3794-83-0

[ 中文名 ]:
羟基乙叉二膦酸盐

[ 英文名 ]:
Tetrasodium (1-hydroxy-1,1-ethanediyl)bis(phosphonate)

[中文别名 ]:

[英文别名 ]:

tetrasodium,1,1-diphosphonatoethanol
MFCD01729922
EINECS 223-267-7

羟基亚乙基二膦酸四钠物理化学性质

[ 沸点 ]:
578.8ºC at 760mmHg

[ 熔点 ]:
198-199ºC

[ 分子式 ]:
C₂H₄Na₄O₇P₂

[ 分子量 ]:
293.956

[ 闪点 ]:
303.8ºC

[ 精确质量 ]:
293.902313

[ PSA ]:
166.23000

[ LogP ]:
0.76060

[ 外观性状 ]:
棕色粘性液体

[ 储存条件 ]:
室温，干燥

羟基亚乙基二膦酸四钠毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: JL6475000

CHEMICAL NAME :: Diphosphonic acid, (1-hydroxyethylidene)-, tetrasodium salt

CAS REGISTRY NUMBER :: 3794-83-0

LAST UPDATED :: 199712

DATA ITEMS CITED :: 4

MOLECULAR FORMULA :: C2-H4-O7-P2.4Na

MOLECULAR WEIGHT :: 293.96

WISWESSER LINE NOTATION :: QPQOYQ1OPQQ &-NA- 4

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 990 mg/kg

TOXIC EFFECTS :: Kidney, Ureter, Bladder - changes in both tubules and glomeruli

REFERENCE :: TXAPA9 Toxicology and Applied Pharmacology. (Academic Press, Inc., 1 E. First St., Duluth, MN 55802) V.1- 1959- Volume(issue)/page/year: 22,661,1972 *** NIOSH STANDARDS DEVELOPMENT AND SURVEILLANCE DATA *** NIOSH OCCUPATIONAL EXPOSURE SURVEY DATA : NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - X1265 No. of Facilities: 685 (estimated) No. of Industries: 3 No. of Occupations: 6 No. of Employees: 5667 (estimated) No. of Female Employees: 108 (estimated)

羟基亚乙基二膦酸四钠安全信息

[ 危害码 (欧洲) ]:
Xi: Irritant;

[ 风险声明 (欧洲) ]:
R36/38

[ 安全声明 (欧洲) ]:
S26-S36/37/39-S36

[ RTECS号 ]:
JL6475000

羟基亚乙基二膦酸四钠制备

用氢氧化钠水溶液中和羟基亚乙基二膦酸至pH值为2～3即可。