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structure of 16893-85-9

Sodium Hexafluorosilicate(CAS 16893-85-9)

CAS No.: 16893-85-9 Brand: MolBest
M. Ft.: Na2SiF6 Cat. No: G3496746
M. Wt.: 188.06 MDL: MFCD00003491
Storage: Store in a cool,dry area. Use: For laboratory research use only
UN No.: UN 2674 6.1 /PG III
Purity Grade Package Stock Price Quantity
98%
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RG 100G In Stock 4 USD
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RG 500G In Stock 8 USD
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RG 2.5KG In Stock 19 USD
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RG 25KG In Stock 176 USD
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Applications of 16893-85-9

Sodium hexafluorosilicate has several applications across various industries:

  • Water Fluoridation: Used as an additive in some regions for water treatment to prevent dental cavities.
  • Ceramics and Glass Production: Acts as a fluxing agent in the manufacture of opal glass and ceramic products.
  • Ore Refining: Utilized in processes involving the extraction of metals from ores.
  • Sodium Fluoride Production: Serves as a precursor for synthesizing sodium fluoride and other fluoride compounds.

Physical and chemical properties of 16893-85-9

Boiling Point

620℃[at 101 325 Pa]

Decomposition

When heated to decomposition it emits toxic fumes of /hydrogen fluoride/ and Na2O.

Density

Relative density (water = 1): 2.7

Exact Mass

187.94700

Exposure Limits

ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3

Index of Refraction

INDEX OF REFRACTION: 1.312, 1.309

LogP

2.14040

Melting Point

Melts at red heat with decomposition.

Merck

14,8624

Molecular Formula

F6Na2Si

Molecular Weight

188.05500

Odor

Odorless

pH

SOLN IN COLD WATER IS NEUTRAL

Solubility

Solubility in water, g/100ml at 20 °C: 0.76 (poor)

Stability

Stable. Incompatible with oxidizing agents, water. Moisture sensitive.

Vapour Pressure

0.01Pa

Water Solubility

Slightly soluble in water. Solubility increases with temperature. Insoluble in alcoholSlightly soluble in water. Insoluble in alcohol.

Q&A for CAS 16893-85-9

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Download SDS of 16893-85-9

Pictograms

Signal Word

Danger

Hazard Statements

H301 Toxic if swallowed
H311 Toxic in contact with skin
H331 Toxic if inhaled

Safety Data Sheet

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