Magnesium silicofluoride

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Description

White efflorescent crystals that are a strong reducing agent. Magnesium silicofluoride is used for mothproofing textiles, as a concrete hardener, as a laundry sour, and as a waterproofing material.

Synonyms and Related Terms

magnesium fluosilicate; magnesium hexafluorosilicate

Risks

  • Strong irritant to skin and membranes.
  • ThermoFisher: SDS

Physical and Chemical Properties

Soluble in water. Insoluble in ethanol.

Composition MgSiF6-6H2O
CAS 18972-56-0
Melting Point 120 C (dec)
Density 1.788 g/ml
Molecular Weight mol. wt. = 166.38
Refractive Index 1.3439, 1.3602

Resources and Citations

  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: m5704
  • CRC Handbook of Chemistry and Physics, Robert Weast (ed.), CRC Press, Boca Raton, Florida, v. 61, 1980 Comment: ref. index=1.3439, 1.3602