Natriumfluorosilikat

Silikat(2-),Hexafluor-,Natrium (1:2); Silikat(2-),Hexafluor-,Dinatrium-Hexafluorosilikat; Natriumfluorosilikat; Natriumfluosilikat; Natriumhexafluorosilikat; Siliziumnatriumfluorid (Na2SiF6); Natriumfluorosilikat (Na2SiF6); Natriumsiliciumfluorid (Na2SiF6);D Inatriumhexafluorosilikat(2-); Prodan (Pestizid); Natriumhexafluorosilikat (Na2SiF6); Natriumfluosilikat (Na2(SiF6)); Natriumsilicofluorid (Na2SiF6); Silizium-Natriumfluorid (SiNa2F6);D Inatriumhexafluorosilikat (Na2SiF6); Prodan; KFN (Silikat); KFN; Keifuka Soda;1310-02-7;1344-04-3;12656-12-1;39413-34-8;221174-64-7;1202391-51-2;1360896-72-5;2041645-24-1;2085706-50-7;2108687-60-9;2192184-31-7;2226012-27-5;2293042-88-1;2416265-41-1;2600319-46-6;2639889-46-4

16893-85-9

F6Si.2Na

InChIKey=TWGUZEUZLCYTCG-UHFFFAOYSA-N

188.06

187.947

240-934-8

806AV2E065

1243

2674

DTXSID9036933

WHITE GRANULAR POWDER|White, hexagonal crystals.|White, crystalline powder.|White, free-flowing powder.

Anorganische Salze

0

2.14040

White Crystals

2.7 g/cm³

Melts at red heat with decomposition.

1.31

Solubility increases with temperature.Insoluble in alcoholSlightly soluble in water.Insoluble in alcohol.Solubility in water, g/100ml at 20°C: 0.76 (poor)

Oral-Mouse LD50: 70 mg/kg

Non-combustible; toxic fluoride and sodium oxide, silicon oxide fumes are emitted from the fire; react with acid to generate toxic hydrogen fluoride

Odorless

Tasteless.

SOLN IN COLD WATER IS NEUTRAL

Solutions of fluosilicates are sensitive to hydrolysis in alkaline medium. In the presence of acid, fluosilicate solutions release silicon tetrafluoride. The thermal decomposition of fluosilicates takes place with release of gaseous silicon tetrfluoride and formation of the solid fluoride. /Fluosilicates/

Water soluble.

Salts, Basic

SODIUM FLUOROSILICATE has weak oxidizing or reducing powers. Redox reactions can however still occur. The majority of compounds in this class are slightly soluble or insoluble in water. If soluble in water, then the solutions are usually neither strongly acidic nor strongly basic. These compounds are not water-reactive. Solutions of sodium fluorosilicate may contain some hydrofluoric acid, which can cause severe chemical burns and is one of the few materials that can etch glass. Unlike other halide ions, fluoride is quite reactive, acting as a weak base and participating in some unique reactions. In particular, fluorides react strongly with compounds containing calcium, magnesium, or silicon ions, which means that solutions containing soluble fluorides are corrosive to both living tissue and glass.