Sodium_silicofluoride

Sodium fluorosilicate
	; Unit cell of sodium hexafluoridosilicate
Names
	Preferred IUPAC name Sodium fluorosilicate
	Systematic IUPAC name Sodium hexafluoridosilicate(2–)
	Other names Disodium hexafluorosilicate/sodium fluosilicate/sodium silicofluoride
Identifiers
CAS Number	16893-85-9 ;
3D model (JSmol)	Interactive image;
ChemSpider	26165 ;
ECHA InfoCard	100.037.198
EC Number	240-934-8;
PubChem CID	28127;
RTECS number	VV8410000;
UNII	806AV2E065 ;
UN number	2674
CompTox Dashboard (EPA)	DTXSID9036933 ;
	InChI InChI=1S/F6Si.2Na/c1-7(2,3,4,5)6;;/q-2;2*+1 Key: TWGUZEUZLCYTCG-UHFFFAOYSA-N;
	SMILES [Na+].[Na+].F[Si--](F)(F)(F)(F)F;
Properties
Chemical formula	Na2[SiF6]
Molar mass	188 g/mol
Appearance	white granular powder
Odor	odorless
Density	2.7 g/cm3
Solubility in water	0.64 g/100 mL (20 °C) ; 1.27 g/100 mL (50 °C) ; 2.45 g/100 mL (100 °C)
Solubility	insoluble in alcohol
Refractive index (nD)	1.312
Structure
Crystal structure	trigonal
Space group	P321
Lattice constant	a = 8.859, c = 5.038
Formula units (Z)	4
Hazards
NFPA 704 (fire diamond)	2 0 0
	Lethal dose or concentration (LD, LC):
LDLo (lowest published)	70 mg/kg (mouse, oral); 125 mg/kg (rabbit, oral)
Related compounds
Other cations	Ammonium hexafluorosilicate; Fluorosilicic acid
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Sodium fluorosilicate

Chemical compound

Sodium fluorosilicate is a compound with the chemical formula Na₂[SiF₆]. Unlike other sodium salts, it has a low solubility in water.

Quick Facts Names, Identifiers ...

Share this article:

This article uses material from the Wikipedia article Sodium_silicofluoride, and is written by contributors. Text is available under a CC BY-SA 4.0 International License; additional terms may apply. Images, videos and audio are available under their respective licenses.

[1] [1]
"Parent Hydride Names and Substitutive Nomenclature". Nomenclature of Inorganic Chemistry, IUPAC Recommendations 2005 (PDF). RSC Publishing. 2005. pp. 114–135.

[2] [2]
Allan Zalkin, J. D. Forrester, David H. Templeton (1964). "The Crystal Structure of Sodium Fluorosilicate". Acta Crystallographica. 17 (11): 1408–1412. Bibcode:1964AcCry..17.1408Z. doi:10.1107/S0365110X64003516.{{cite journal}}: CS1 maint: multiple names: authors list (link)

[3] [3]
"Fluorides (as F)". Immediately Dangerous to Life or Health Concentrations (IDLH). National Institute for Occupational Safety and Health (NIOSH).

[Malladrite,_Mindat-4] [4]
"Malladrite".

[5] [5]
"PUB". Archived from the original on 2009-03-26. Retrieved 2009-08-10.

[1]

[2]

[3]

[4]

[5]

Sodium_silicofluoride

Sodium fluorosilicate

Natural occurrence

Manufacturing

Possible application

See also

References

Share this article:

Names
Unit cell of sodium hexafluoridosilicate
Preferred IUPAC name Sodium fluorosilicate
Systematic IUPAC name Sodium hexafluoridosilicate(2–) ^[1]
Other names Disodium hexafluorosilicate/sodium fluosilicate/sodium silicofluoride
Identifiers
CAS Number	16893-85-9^Y
3D model (JSmol)	Interactive image
ChemSpider	26165^Y
ECHA InfoCard	100.037.198
EC Number	240-934-8
PubChem CID	28127
RTECS number	VV8410000
UNII	806AV2E065^Y
UN number	2674
CompTox Dashboard (EPA)	DTXSID9036933
InChI InChI=1S/F6Si.2Na/c1-7(2,3,4,5)6;;/q-2;2*+1 Key: TWGUZEUZLCYTCG-UHFFFAOYSA-N
SMILES [Na+].[Na+].F[Si--](F)(F)(F)(F)F
Properties
Chemical formula	Na₂[SiF₆]
Molar mass	188 g/mol
Appearance	white granular powder
Odor	odorless
Density	2.7 g/cm³
Solubility in water	0.64 g/100 mL (20 °C) 1.27 g/100 mL (50 °C) 2.45 g/100 mL (100 °C)
Solubility	insoluble in alcohol
Refractive index (n_D)	1.312
Structure^[2]
Crystal structure	trigonal
Space group	P321
Lattice constant	a = 8.859, c = 5.038
Formula units (Z)	4
Hazards
NFPA 704 (fire diamond)	2 0 0
Lethal dose or concentration (LD, LC):
LD_Lo (lowest published)	70 mg/kg (mouse, oral) 125 mg/kg (rabbit, oral)^[3]
Related compounds
Other cations	Ammonium hexafluorosilicate Fluorosilicic acid
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references