01302

Fluosilicic acid

purum, 33.5-35%

• 동의어(들): Fluorosilicic acid, Hexafluorosilicic acid, Hydrogen hexafluorosilicate
• Linear Formula: H₂SiF₆
• CAS Number: 16961-83-4
• Molecular Weight: 144.09
• MDL number: MFCD00036289
• UNSPSC 코드: 12352300
• eCl@ss: 38130308
• PubChem Substance ID: 57646695
• NACRES: NA.21
• 농도: 33.5-35%

속성

• grade: purum
• Quality Level: 200
• 농도: 33.5-35%
• 불순물: ≤0.003% heavy metals (as Pb)
• density: 1.22 g/mL at 20 °C (lit.); 1.31 g/mL at 25 °C
• 음이온 미량물: chloride (Cl^-): ≤0.2%; phosphate (PO₄^3-): ≤1000 mg/kg; sulfate (SO₄^2-): ≤0.2%
• 양이온 미량물: Fe: ≤100 mg/kg
• 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

설명

일반 설명

High-silic fluoro silicic acids have been prepared. They have desired amount of extra silica upto 18% more than the composition as represented by H₂SiF₆. Preparation and properties of fluosilicic acid have been reported. Fluosilicic acid can be obtained as a major byproduct of phosphate fertilizer industry.It can be used in the preparation of sodium fluorosilicate, via neutralization with sodium chloride. It can also undergo neutralization with ammonia to produce ammonium fluoride and silica.

애플리케이션

Fluosilicic acid (FSA, H₂SiF₆) has been used in the following studies:

• Fluoridation of fluoridated municipal water supplies.
• Surface modification of calcium carbonate.
• Liquid phase deposition (LPD) of silica.

안전성 정보

• 픽토그램: GHS06,GHS05
• 신호어: Danger
• 유해 및 위험 성명서: H302,H311,H314
• 예방조치 성명서: P270 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• Hazard Classifications: Acute Tox. 3 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1
• Storage Class Code: 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
• 개인 보호 장비: Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter