372757

Fluorosilicic acid solution

20-25 wt. % in H₂O

• Synonym(s): Dihydrogen hexafluorosilicate
• Linear Formula: H₂SiF₆
• CAS Number: 16961-83-4
• Molecular Weight: 144.09
• MDL number: MFCD00036289
• UNSPSC Code: 12352300
• eCl@ss: 38130308
• PubChem Substance ID: 24863162
• NACRES: NA.23

Properties

• form: liquid
• concentration: 20-25 wt. % in H₂O
• density: 1.22 g/mL at 25 °C
• SMILES string: F[H].F[H].F[Si](F)(F)F
• InChI: 1S/F4Si.2FH/c1-5(2,3)4;;/h;2*1H
• InChI key: ZEFWRWWINDLIIV-UHFFFAOYSA-N

Description

General description

Fluorosilicic acid may be produced as a byproduct during the manufacture of phosphate fertilizer. It may also be prepared by treating grounded phosphate rock with sulphuric acid.1

Packaging

Packaged in poly bottles

Safety Information

• Pictograms: GHS06,GHS05
• Signal Word: Danger
• Hazard Statements: H302,H311,H314
• Precautionary Statements: 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
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves