Calcium hexafluorosilicate

Basic Information

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CAS Number

16925-39-6

Molecular Formula

CaF6Si

Molecular Weight

182.15 g/mol

Chemical Classification

Fine Chemicals Specialty Chemicals UV Stabilizers

Electronic Chemicals Semiconductor Materials Etchants

Water Treatment Chemicals Disinfectants Chlorine Compounds

Basic Physical Properties

SMILES

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F[Si-2](F)(F)(F)(F)F.[Ca+2]

InChI

InChI=1S/Ca.F6Si/c;1-7(2,3,4,5)6/q+2;-2

InChIKey

CVWSBMWWVFJIBN-UHFFFAOYSA-N

LogP

2.14040

Complexity

62.7

Safety Information

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Toxicity

LD in guinea pigs (mg/kg): 250 orally, 450 s.c. (Waldbott)

Synonyms & References

English

Silicate(2-), hexafluoro-, calcium
ITCHING SKIN
DTXSID60884944
Silicate(2-), hexafluoro-, calcium (1:1)
Calcium silicofluoride
AKOS015914677
Calcium hexafluorosilicate
2NVP93XVQ3
calcium;hexafluorosilicon(2-)
Calcium fluosilicate
LAPIS ALBUS [HPUS]
16925-39-6
Lapis lazuli
LAPIS ALBUS
Lapis Lazuli8129
CALCIUM HEXAFLUOROSILICATE [MI]
Q16635996
NS00087625
calcium hexafluorosilicate(IV)
Calcium fiuosilicate
CALCIUM FLUOSILICATE
CALCIUM FLUOROSILICATE
CALCIUM SILICAFLUORIDE
CALCIUM SILICOFLUORIDE
calcium,silicon(4+),hexafluoride
EINECS 240-991-9
Silicate(2-),hexafluoro-,calcium(1:1)
calcium fluoroaluminate
Calcium hexafiuorosilicate
hexafluoro-silicatecalcium
Silicate,hexafluoro-,calcium

MDL Number

MFCD00015978

FAQ

What are the physical and chemical properties of Calcium hexafluorosilicate (CAS: 16925-39-6)?

Calcium hexafluorosilicate (CAS: 16925-39-6) is a solid, white crystalline compound with a high molecular weight. It is insoluble in water but soluble in acid. This compound is highly reactive, particularly with moisture, leading to the release of hydrogen fluoride gas.

How is Calcium hexafluorosilicate (CAS: 16925-39-6) typically synthesized?

Calcium hexafluorosilicate is typically synthesized by reacting calcium fluoride with silicon tetrafluoride. The process requires careful temperature control and is often carried out under anhydrous conditions to prevent hydrolysis and the formation of hydrogen fluoride gas.

What industries use Calcium hexafluorosilicate (CAS: 16925-39-6)?

Calcium hexafluorosilicate (CAS: 16925-39-6) is used in the pharmaceutical industry for capsule production and as a pH regulator. It is also utilized in the polymer industry for stabilizing plastic and rubber compounds. Additionally, it finds application in the semiconductor industry as a dopant.

What precautions should be taken when handling Calcium hexafluorosilicate (CAS: 16925-39-6)?

When handling Calcium hexafluorosilicate (CAS: 16925-39-6), it is essential to use personal protective equipment (PPE) such as gloves and safety glasses. Work should be conducted in a well-ventilated area or a fume hood. Spills should be cleaned up using appropriate absorbents, and the area should be washed down with water. Always refer to the Safety Data Sheet (SDS) for detailed instructions.