01302
氟硅酸
purum, 33.5-35%
别名:
六氟硅酸, 氢氟硅酸, 硅氟酸
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关于此项目
线性分子式:
H2SiF6
化学文摘社编号:
分子量:
144.09
UNSPSC Code:
12352300
eCl@ss:
38130308
PubChem Substance ID:
NACRES:
NA.21
MDL number:
产品名称
氟硅酸, purum, 33.5-35%
SMILES string
F.F.F[Si](F)(F)F
InChI
1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H
InChI key
ZEFWRWWINDLIIV-UHFFFAOYSA-N
grade
purum
concentration
33.5-35%
impurities
≤0.003% heavy metals (as Pb)
density
1.22 g/mL at 20 °C (lit.)
1.31 g/mL at 25 °C
anion traces
chloride (Cl-): ≤0.2%
phosphate (PO43-): ≤1000 mg/kg
sulfate (SO42-): ≤0.2%
cation traces
Fe: ≤100 mg/kg
Quality Level
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Application
氟硅酸 (FSA，H 2 SiF 6 ) 已用于以下研究：
- 含氟市政供水的氟化。
- 碳酸钙的表面改性。
- 二氧化硅的液相沉积（LPD）。
General description
已经制备了高硅氟硅酸。它们所需的额外二氧化硅含量要比 H2SiF6所代表的组成高18%。已报道了氟硅酸的制备和性质。氟硅酸可以作为磷酸盐肥料的主要副产物获得。可通过氯化钠中和用于制备氟硅酸钠。还可与氨进行中和生成氟化铵和二氧化硅。
signalword
Danger
hcodes
Hazard Classifications
Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1
存储类别
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
wgk
WGK 2
flash_point_f
Not applicable
flash_point_c
Not applicable
ppe
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
危险化学品
此项目有
Myron J Coplan et al.
Neurotoxicology, 28(5), 1032-1042 (2007-04-11)
Silicofluorides (SiFs), fluosilicic acid (FSA) and sodium fluosilicate (NaFSA), are used to fluoridate over 90% of US fluoridated municipal water supplies. Living in communities with silicofluoride treated water (SiFW) is associated with two neurotoxic effects: (1) Prevalence of children with
Elizabeth A Whitsitt et al.
Journal of colloid and interface science, 287(1), 318-325 (2005-05-26)
Liquid phase deposition (LPD) of silica from soluble silicates has been performed in the presence of dodecyltrimethylammonium bromide (DTAB), sodium dodecyl sulfate (SDS) and sodium dodecylbenzyl sulfate (SDBS). The morphology of the silica varies between semi-ordered uniform spheres to low
"Recovery of high surface area mesoporous silica from waste hexafluorosilicic acid (H 2 SiF 6) of fertilizer industry"
Sarawade.BP, et al.
Journal of Hazardous Materials, 173(01), 576-580 (2010)
Fluosilicic acid.
Journal of Chemical Education, 35(11), 562-562 (1958)
High-silica fluosilicic acids: Specific reactions and the equilibrium with silica.
Thomsen SM.
Journal of the American Chemical Society, 74(7), 1690-1693 (1952)
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