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Calcium hexafluorosilicate

CAS No.
16925-39-6
Chemical Name:
Calcium hexafluorosilicate
Synonyms
CALCIUM FLUOSILICATE;Calcium fiuosilicate;CALCIUM SILICOFLUORIDE;CALCIUM SILICAFLUORIDE;CALCIUM FLUOROSILICATE;calcium fluoroaluminate;Calcium hexafiuorosilicate;calcium hexafluorosilicate;hexafluoro-silicatecalcium;Silicate,hexafluoro-,calcium
CBNumber:
CB9676338
Molecular Formula:
CaF6Si
Molecular Weight:
182.15
MDL Number:
MFCD00015978
MOL File:
16925-39-6.mol
Last updated:2024-12-18 14:15:32

Calcium hexafluorosilicate Properties

Density 2.25
solubility insoluble in acetone; reacts with hot H2O
form colorless tetragonal crystals
color colorless tetragonal crystals, crystalline
Water Solubility insoluble cold H2O, partially decomposed in hot H2O [MER06]
Solubility Product Constant (Ksp) pKsp: 3.09
CAS DataBase Reference 16925-39-6(CAS DataBase Reference)
EWG's Food Scores 1
FDA UNII 2NVP93XVQ3
EPA Substance Registry System Silicate(2-), hexafluoro-, calcium (1:1) (16925-39-6)

SAFETY

Risk and Safety Statements

Symbol(GHS)  GHS hazard pictograms
GHS06
Signal word  Danger
Hazard statements  H300+H310+H330
Precautionary statements  P280-P284-P301+P310
RIDADR  UN 2856
HS Code  2826908090
Toxicity LD in guinea pigs (mg/kg): 250 orally, 450 s.c. (Waldbott)

Calcium hexafluorosilicate Chemical Properties,Uses,Production

Preparation

CaCO3 +H2SiF6 →CaSiF6 +H2O + CO2
Calcium hexafluorosilicate can be prepared by reacting a large excess of CaCO3 or Ca(NO3)2 with a high concentration of H 2SiF6.

Chemical Properties

colorless, tetr; powder(s); obtained by reaction of a Ca salt and H2SiF6; used as a flotation agent and insecticide [HAW93] [MER06] [CRC10]

Uses

In wood, rubber, textile industries; flotation agent; insecticide.

Safety Profile

Poison by ingestion and subcutaneous routes. See also CALCIUM COMPOUNDS. When heated to decomposition it emits toxic fumes of F-.

Calcium hexafluorosilicate Preparation Products And Raw materials

Raw materials

Preparation Products

Calcium hexafluorosilicate Suppliers

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Silicate(2-),hexafluoro-,calcium(1:1) Calcium fiuosilicate CALCIUM FLUOSILICATE CALCIUM FLUOROSILICATE calcium hexafluorosilicate Calcium hexafiuorosilicate CALCIUM SILICAFLUORIDE CALCIUM SILICOFLUORIDE calcium fluoroaluminate hexafluoro-silicatecalcium Silicate, hexafluoro-, calcium Silicate,hexafluoro-,calcium hexafluoro-silicate(2-calcium(1:1) Calcium hexafluorosilicate ISO 9001:2015 REACH calcium,silicon(4+),hexafluoride 16925-39-6 CaF6Si CaSiF6 CaSiF62H2O