氟硅酸

氟硅酸用途

【用途一】
主要用于制氟硅酸盐、四氟化硅，也用于电镀、木材防腐、酿造工业设备消毒、自来水添加剂等
【用途二】
用作分析试剂，也用于硅酸盐的合成
【用途三】
是制取氟硅酸钠、钾、铵、镁、铜、钡、铅和其他氟硅酸盐及四氟化硅的基本原料。用于金属电镀、木材防腐、啤酒消毒、酿造工业设备消毒(1％～2％H2SiF6)和铅的电解精制等。还用作媒染剂和金属表面处理剂。
【用途四】
测定钡，分离钡和锶。

氟硅酸名称

[ CAS 号 ]:
16961-83-4

[ 中文名 ]:
氟硅酸

[ 英文名 ]:
Hexafluorosilicate

[中文别名 ]:

硅氟氢酸

[英文别名 ]:

EINECS 241-034-8
Hexafluorosilicate
CORTICOTROPIN A
ACTH
Fluorosilicic acid
MFCD00145721
Silicate(2-), hexafluoro-
FLUOSILICIC ACID
FLUOROSILIC ACID
Fluorsilicic acid

氟硅酸物理化学性质

[ 密度 ]:
1.22 g/mL at 25 °C

[ 沸点 ]:
108-109°C

[ 分子式 ]:
H₂SiF₆

[ 分子量 ]:
144.09200

[ 闪点 ]:
108-109°C

[ 精确质量 ]:
143.98300

[ LogP ]:
2.36540

[ 外观性状 ]:
无色液体

[ 折射率 ]:
1.3500

[ 储存条件 ]:
库房通风低温干燥,与食品添加剂、碱类分开存放

[ 稳定性 ]:
Stable in aqueous solution.

[ 水溶解性 ]:
H2O: 1 mg/mL, clear, colorless

氟硅酸MSDS

详细MSDS(安全技术说明书)

氟硅酸毒性和生态

CHEMICAL IDENTIFICATION

RTECS NUMBER :: VV8225000

CHEMICAL NAME :: Silicate(2-), hexafluoro-, dihydrogen

CAS REGISTRY NUMBER :: 16961-83-4

LAST UPDATED :: 199710

DATA ITEMS CITED :: 11

MOLECULAR FORMULA :: F6-Si.2H

MOLECULAR WEIGHT :: 144.11

WISWESSER LINE NOTATION :: H2 SI-F6

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LDLo - Lowest published lethal dose

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Amphibian - frog

DOSE/DURATION :: 140 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 *** REVIEWS *** TOXICOLOGY REVIEW AMSSAQ Acta Medica Scandinavica, Supplement. (Almqvist & Wiksell, POB 45150, S-10430 Stockholm, Sweden) No.1-730, 1921-88. Volume(issue)/page/year: 400,5,1963 *** 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 - 81843 No. of Facilities: 142 (estimated) No. of Industries: 7 No. of Occupations: 14 No. of Employees: 775 (estimated) NOES - National Occupational Exposure Survey (1983) NOES Hazard Code - 81843 No. of Facilities: 1758 (estimated) No. of Industries: 19 No. of Occupations: 15 No. of Employees: 10867 (estimated) No. of Female Employees: 2068 (estimated)

氟硅酸安全信息

[ 符号 ]:

GHS05, GHS06

[ 信号词 ]:
Danger

[ 危害声明 ]:
H302-H311-H314

[ 警示性声明 ]:
P280-P301 + P312 + P330-P303 + P361 + P353-P304 + P340 + P310-P305 + P351 + P338

[ 个人防护装备 ]:
Faceshields;full-face respirator (US);Gloves;Goggles;multi-purpose combination respirator cartridge (US);type ABEK (EN14387) respirator filter

[ 危害码 (欧洲) ]:
C:Corrosive

[ 风险声明 (欧洲) ]:
R34

[ 安全声明 (欧洲) ]:
S26-S36/37/39-S45-S27

[ 危险品运输编码 ]:
UN 1778 8/PG 2

[ WGK德国 ]:
3

[ RTECS号 ]:
VV8225000

[ 包装等级 ]:
II

[ 危险类别 ]:
8

[ 海关编码 ]:
2811199090

氟硅酸制备

1.由湿法磷酸生产中释放出四氟化硅经水吸收制得。亦可由硅砂与氢氟酸反应制得或用硅砂、氟化钙和浓硫酸混合加热制得。

硅石粉酸解法在衬铅的酸解设备中先加入氢氟酸，然后逐渐加入硅石粉，使之反应。反应完成后，加入稻糠灰以中和游离的氢氟酸，同时起到漂白溶液的作用，过滤溶液，在滤出的清液中加入适量的黄丹粉(PbbO)以除去氢氟酸中带入的硫酸根，再经过滤，制得氟硅酸成品。其反应式如下：

氟硅酸海关

[ 海关编码 ]: 2811199090

氟硅酸文献

Effects of ammonium hexafluorosilicate concentration on dentin tubule occlusion and composition of the precipitate.

Dent. Mater. 26(1) , 29-34, (2010)

Ammonium hexafluorosilicate [SiF: (NH(4))(2)SiF(6)] was prepared in order to overcome the tooth discoloration caused by diamine silver fluoride [AgF: (NH(3))(2)AgF] application. We employed a single c...

Microtensile bond strength of two single-step adhesive systems to bur-prepared dentin.

J. Adhes. Dent. 3(2) , 129-36, (2001)

To compare the microtensile bond strength (MTBS) of two single-step adhesive systems to two types of bur-prepared dentin.Using either of two adhesives, the experimental MZ-2000 (MZ) and the commercial...

Hypoxic pulmonary vasoconstriction is not potentiated by repeated intermittent hypoxia in closed chest dogs.

Anesthesiology 63(6) , 608-10, (1985)

Hypoxic pulmonary vasoconstrictor (HPV) responses were measured with repeated intermittent hypoxic challenges in eight non-traumatized closed chest dogs anesthetized with pentobarbital. The right lung...

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氟硅酸