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六水合六氟硅酸镁

六水合六氟硅酸镁用途

【用途一】
作皮革储存中的防虫剂，并具有防水作用。

六水合六氟硅酸镁名称

[ CAS 号 ]:
18972-56-0

[ 中文名 ]:
六水合六氟硅酸镁

[ 英文名 ]:
Magnesium hexafluorosilicate hexahydrate

[中文别名 ]:

[英文别名 ]:

Magnesium hexafluorosilicate hexahydrate
MFCD00016196
EINECS 241-022-2

六水合六氟硅酸镁物理化学性质

[ 密度 ]:
1,79 g/cm3

[ 沸点 ]:
100ºC at 760 mmHg

[ 熔点 ]:
120°C (dec.)

[ 分子式 ]:
F₆H₂MgOSi

[ 分子量 ]:
184.39600

[ 精确质量 ]:
183.96300

[ PSA ]:
9.23000

[ LogP ]:
2.07610

[ 外观性状 ]:
结晶白色,有淡香味的颗粒

[ 储存条件 ]:
库房通风低温干燥,与食品、酸类分开储运

六水合六氟硅酸镁MSDS

详细MSDS(安全技术说明书)

六水合六氟硅酸镁毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VV8575000

CHEMICAL NAME :: Silicate(2-), hexafluoro-, magnesium, hexahydrate

CAS REGISTRY NUMBER :: 18972-56-0

LAST UPDATED :: 199706

DATA ITEMS CITED :: 9

MOLECULAR FORMULA :: F6-Si.Mg.6H2-O

MOLECULAR WEIGHT :: 274.52

WISWESSER LINE NOTATION :: MG SI-F6 &QH 6

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

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

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - guinea pig

DOSE/DURATION :: 200 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: 28ZEAL "Pesticide Index," Frear, E.H., ed., State College, PA, College Science Pub., 1969 Volume(issue)/page/year: 4,265,1969

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 420 mg/kg

REFERENCE :: CRSBAW Comptes Rendus des Seances de la Societe de Biologie et de Ses Filiales. (SPPIF, B.P.22, F-41353 Vineuil, France) V.1- 1849- Volume(issue)/page/year: 124,133,1937 *** U.S. STANDARDS AND REGULATIONS *** OSHA PEL (Gen Indu):8H TWA 2.5 mg(F)/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):8H TWA 2.5 mg(F)/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):8H TWA 2.5 mg(F)/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):8H TWA 2.5 mg(F)/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 FLUORIDES, INORGANIC-air:10H TWA 2.5 mg(F)/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 - M1631 No. of Facilities: 337 (estimated) No. of Industries: 6 No. of Occupations: 8 No. of Employees: 8457 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - M1631 No. of Facilities: 12 (estimated) No. of Industries: 1 No. of Occupations: 1 No. of Employees: 310 (estimated)

六水合六氟硅酸镁安全信息

[ 危害码 (欧洲) ]:
T+

[ 风险声明 (欧洲) ]:
R25

[ 安全声明 (欧洲) ]:
S24/25-S45

[ 危险品运输编码 ]:
2853

[ 包装等级 ]:
III

[ 危险类别 ]:
6.1

六水合六氟硅酸镁制备

1.将1 809kg萤石粉，335kg硅砂和1 858kg硫酸依次投入反应转炉中，制备氟硅酸，用吸收塔吸收得含量为20～22°Bé的氟硅酸溶液。除去硫酸盐后将其打入中和釜，加菱苦粉悬浮液中和至pH值为3～4。过滤，将滤液打入蒸发器，浓缩后打入结晶器冷却结晶。干燥后得产品。反应式如下：