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Potassium fluorosilicate information


Potassium fluorosilicate
Names
Preferred IUPAC name
Potassium fluorosilicate
Other names
Potassium hexafluorosilicate(IV)
Identifiers
CAS Number
  • 16871-90-2
3D model (JSmol)
  • Interactive image
ChemSpider
  • 55723
ECHA InfoCard 100.037.163 Edit this at Wikidata
EC Number
  • 240-896-2 [1]
PubChem CID
  • 61851
RTECS number
  • VV8400000
UNII
  • 2610W49XYD
UN number 2655
CompTox Dashboard (EPA)
  • DTXSID10884939 Edit this at Wikidata
InChI
  • InChI=1S/F6Si.2K/c1-7(2,3,4,5)6;;/q-2;2*+1
    Key: UUHPPUWEDCVPCO-UHFFFAOYSA-N
SMILES
  • F[Si-2](F)(F)(F)(F)F.[K+].[K+]
Properties
Chemical formula
K2[SiF6]
Molar mass 220.28 gmol−1 [1]
Density 2.27gcm−3,[1] 2.719gcm−3 [2]
Solubility in water
Slightly soluble in water
Structure
Crystal structure
cubic
Space group
Fm3m
Lattice constant
a = 0.8134 nm
Lattice volume (V)
0.538.2 nm3
Formula units (Z)
4
Hazards
GHS labelling:
Pictograms
GHS06: Toxic
Signal word
Danger
Hazard statements
H301, H311, H331
Precautionary statements
P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P311, P312, P321, P322, P330, P361, P363, P403+P233, P405, P501
Related compounds
Other cations
Ammonium hexafluorosilicate
Sodium fluorosilicate

Fluorosilicic acid

Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Potassium fluorosilicate is a chemical compound with the chemical formula K2[SiF6].

When doped with Potassium hexafluoromanganate(IV) ((K2[MnF6]) it forms a narrow band red producing phosphor, (often abbreviated PSF or KSF), of economic interest due to its applicability in LED lighting and displays.

  1. ^ a b c Cite error: The named reference alfa was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference loehlin was invoked but never defined (see the help page).

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Potassium fluorosilicate

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Potassium fluorosilicate is a chemical compound with the chemical formula K2[SiF6]. When doped with Potassium hexafluoromanganate(IV) ((K2[MnF6]) it forms...

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Hexafluorosilicic acid

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hexafluorosilicic acid is 430 mg/kg. Ammonium fluorosilicate Sodium fluorosilicate Potassium fluorosilicate Perrin, D. D., ed. (1982) [1969]. Ionisation...

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Fluorosilicate glass

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Fluorosilicate glass (FSG) is a glass material composed primarily of fluorine, silicon and oxygen. It has a number of uses in industry and manufacturing...

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Silicon

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approximately the same method as Gay-Lussac (reducing potassium fluorosilicate with molten potassium metal), but purifying the product to a brown powder...

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PSF

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Protein Data Bank Polysulfone, a high-performance thermoplastic Potassium fluorosilicate, specifically when referring to phosphors Price per square foot...

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Potassium fluoride

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the formation of soluble fluorosilicates, although HF is more effective. Potassium fluoride is prepared by reacting potassium carbonate with hydrofluoric...

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KSF

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success factor Kjøbenhavns Skøjteløberforening Kosovo Security Force Potassium fluorosilicate, specifically when referring to phosphors This disambiguation page...

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List of UN numbers 2601 to 2700

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Benzyl iodide UN 2654 ? (UN No. no longer in use) UN 2655 6.1 Potassium fluorosilicate UN 2656 6.1 Quinoline UN 2657 6.1 Selenium disulfide UN 2658 6...

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Bararite

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The anions of hexafluorosilicic acid (H2SiF6) precipitated as potassium fluorosilicate (K2SiF6). Barium sulfate (BaSO4) was thrown into the filtrate,...

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Solubility table

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fluoride NH4F 71.5 76.1 80.8 86.2 91.57 97.2 103.7 110.5 117.9 Ammonium fluorosilicate (NH4)2SiF6 12.28 16.41 18.6 25.0 31.6 35.4 40.4 44.9 48.1(75°C) 61.0...

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Chemically strengthened glass

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finishing process. Glass is submersed in a bath of a molten potassium salt (typically potassium nitrate) at temperatures of 334 °C (630 °F) or greater. This...

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Cobalt glass

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being assessed to avoid bias in judging. Moderately ground cobalt glass (potassium cobalt silicate)—called "smalt"—has been historically important as a pigment...

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List of inorganic compounds

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Na2S2O4 Sodium ferrocyanide – Na4[Fe(CN)6] Sodium fluoride – NaF Sodium fluorosilicate – Na2[SiF6] Sodium formate – HCOONa Sodium hydride – NaH Sodium hydrogen...

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Sodium fluoride

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orthovanadate are also used for this purpose. Inorganic fluorides such as fluorosilicates and sodium fluoride complex magnesium ions as magnesium fluorophosphate...

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List of CAS numbers by chemical compound

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potassium cyanide 151–50–8 KCNO potassium cyanate 590–28–3 KC2HO4 potassium binoxalate 127–95–7 KC2H3O2 potassium acetate 127–08–2 KC2H5O potassium ethoxide...

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Leonite

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Fluorosilicic acid in water reacts with leonite to produce insoluble potassium fluorosilicate and a solution of magnesium sulfate and sulfuric acid: H2SiF6(aq)...

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Sodium silicate

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esters), such as boric acid (B(OH)3), phosphoric acid (PO(OH)3), sodium fluorosilicate, aluminium phosphate etc.. Before application water solution of sodium...

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Beryllium

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soluble mixture. The sintering process involves mixing beryl with sodium fluorosilicate and soda at 770 °C (1,420 °F) to form sodium fluoroberyllate, aluminium...

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List of UN numbers 2801 to 2900

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2853 6.1 Magnesium fluorosilicate UN 2854 6.1 Ammonium fluorosilicate UN 2855 6.1 Zinc fluorosilicate UN 2856 6.1 Fluorosilicates, n.o.s. UN 2857 2 Refrigerating...

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Polished concrete

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There are many types of densifiers including, sodium, potassium, lithium, magnesium fluorosilicate and colloidal. The densifier is allowed to dry and cure...

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Water fluoridation

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compounds to the water: sodium fluoride, fluorosilicic acid, or sodium fluorosilicate. Sodium fluoride (NaF) was the first compound used and is the reference...

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Lead glass

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material is modern crystal glass, in which barium oxide, zinc oxide, or potassium oxide are employed instead of lead oxide. In the European Union, labelling...

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Optical fiber

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fluorine-induced concentration fluctuation component in the cladding. In the core of potassium-doped pure silica-core (KPSC) fiber only density fluctuations play a significant...

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Nickel compounds

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hexafluorostannate NiSnF 6 ⋅ 6 H 2 O {\displaystyle {\ce {NiSnF6.6H2O}}} and nickel fluorosilicate NiSiF 6 ⋅ 6 H 2 O {\displaystyle {\ce {NiSiF6.6H2O}}} crystallise in...

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Fluorochemical industry

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ton of aluminium. These compounds are also used as a flux for glass. Fluorosilicates are the next most significant inorganic fluorides formed from HF. The...

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