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Sodium hexafluorosilicate

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Identification
Molecular formula
Na2SiF6
CAS number
16893-85-9
IUPAC name
disodium;hexafluorosilicon(2-)
State
State

At room temperature, sodium hexafluorosilicate is typically found in a solid state. It is stable and does not readily react with the surrounding atmosphere under normal conditions.

Melting point (Celsius)
627.00
Melting point (Kelvin)
900.00
Boiling point (Celsius)
1 847.00
Boiling point (Kelvin)
2 120.00
General information
Molecular weight
188.05g/mol
Molar mass
188.0560g/mol
Density
2.6790g/cm3
Appearence

Sodium hexafluorosilicate appears as a white crystalline solid. It is often found in a powdery form and can also be found as small crystals.

Comment on solubility

Solubility of Disodium Hexafluorosilicon(2-)

Disodium hexafluorosilicon(2-) is a fascinating compound when it comes to its solubility characteristics. Generally, the solubility of ionic compounds is influenced by factors such as the size of the ions, the charge of the ions, and the polarity of the solvent used.

Key points to consider regarding its solubility:

  • Ionic Nature: As an ionic compound, disodium hexafluorosilicon(2-) typically exhibits good solubility in polar solvents, especially water. This is largely due to the interaction between the charged ions and the polar water molecules.
  • Hexafluorosilicate Ion: The hexafluorosilicate 2- ion is known to form highly soluble salts with sodium, greatly influencing overall solubility.
  • Temperature Dependence: As with many salts, its solubility can increase with temperature, making it more soluble in hot water compared to cold water.

In summary, disodium hexafluorosilicon(2-) displays notable solubility in aqueous solutions due to its ionic composition and the nature of the hexafluorosilicate ion. This solubility behavior is crucial for its applications in various chemical processes and industries.

Interesting facts

Interesting Facts about Disodium Hexafluorosilicate

Disodium hexafluorosilicate, commonly referred to in scientific contexts, is a fascinating compound that possesses interesting properties and applications. Here are some key points to consider:

  • Composition: This compound consists of two sodium ions (Na+) and one hexafluorosilicate ion (SiF62−). The combination of sodium and fluorosilicate results in its unique chemical properties.
  • Usage in Industry: Disodium hexafluorosilicate is primarily utilized in the production of waterproofing agents and insecticides. Its ability to bond with silica makes it valuable in enhancing the durability of materials.
  • Role in Dental Care: Interestingly, disodium hexafluorosilicate is also used in the formulation of dental products. It acts as a fluoride source, which can help in the prevention of dental caries.
  • Environmental Considerations: While it has beneficial uses, care must be taken regarding its environmental impact. The disposal and use of fluorinated compounds can sometimes lead to concerns regarding toxicity in wildlife.
  • Historical Context: The synthesis of this compound dates back to the early 20th century, where it began to gain attention for its unique properties that differed from other silicate compounds.

In summary, disodium hexafluorosilicate is more than just a chemical compound; it embodies a blend of industrial utility and environmental awareness. Its applications in both manufacturing and dental health highlight the important role chemistry plays in our daily lives. As we continue to explore the realms of chemical compounds, disodium hexafluorosilicate serves as a reminder of the complexity and significance of chemical interactions.

Synonyms
Sodium hexafluorosilicate
16893-85-9
Sodium fluorosilicate
Sodium fluosilicate
SODIUM SILICOFLUORIDE
disodium;hexafluorosilicon(2-)
Disodium hexafluorosilicate
MFCD00003491
Sodium hexafluorosilicate [ISO]
DTXSID9036933
806AV2E065
Salufer
Safsan
Silicate(2-), hexafluoro-, sodium (1:2)
Super prodan
Destruxol applex
Ortho earwig bait
Ortho weevil bait
Ens-zem weevil bait
Fluosilicate de sodium
Sodium silica fluoride
Caswell No. 771
Disodium silicofluoride
Sodium hexafluosilicate
Na2SiF6
Natriumhexafluorosilicat
Silicon sodium fluoride
Sodium silicon fluoride
PSC Co-Op weevil bait
Natriumsilicofluorid [German]
HSDB 770
Disodium hexafluorosilicate (2-)
Natriumsilicofluorid
EINECS 240-934-8
ENT 1,501
UN2674
Silicate(2-), hexafluoro-, disodium
EPA Pesticide Chemical Code 075306
Fluorosilicate de sodium [ISO-French]
F6Na2Si
Fluorosilicate de sodium
AI3-01501
NATRUM SILICOFLUORICUM
Sodium hexafluorosilicate, 98%
DTXCID7016933
UNII-806AV2E065
Tox21_302311
NATRUM SILICOFLUORICUM [HPUS]
SODIUM HEXAFLUOROSILICATE [MI]
SODIUM SILICOFLUORIDE [MART.]
SODIUM HEXAFLUOROSILICATE [HSDB]
NCGC00255590-01
SODIUM SILICON FLUORIDE (NA2SIF6)
CAS-16893-85-9
DISODIUM HEXAFLUOROSILICATE (NA2SIF6)
NS00084852
Sodium fluorosilicate [UN2674] [Poison]
C19040
EC 240-934-8
Q532908