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等级
purum
质量水平
浓度
33.5-35%
杂质
≤0.003% heavy metals (as Pb)
密度
1.22 g/mL at 20 °C (lit.)
1.31 g/mL at 25 °C
痕量阴离子
chloride (Cl-): ≤0.2%
phosphate (PO43-): ≤1000 mg/kg
sulfate (SO42-): ≤0.2%
痕量阳离子
Fe: ≤100 mg/kg
SMILES字符串
F.F.F[Si](F)(F)F
InChI
1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H
InChI key
ZEFWRWWINDLIIV-UHFFFAOYSA-N
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相关类别
一般描述
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。
应用
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)。
警示用语:
Danger
危险声明
危险分类
Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1
储存分类代码
6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
WGK
WGK 2
闪点(°F)
Not applicable
闪点(°C)
Not applicable
个人防护装备
Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter
法规信息
危险化学品
Fluosilicic acid.
Journal of Chemical Education, 35(11), 562-562 (1958)
"Recovery of high surface area mesoporous silica from waste hexafluorosilicic acid (H 2 SiF 6) of fertilizer industry"
Journal of Hazardous Materials, 173(01), 576-580 (2010)
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
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
High-silica fluosilicic acids: Specific reactions and the equilibrium with silica.
Journal of the American Chemical Society, 74(7), 1690-1693 (1952)
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