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Basic information Physical Properties Production Safety Related Supplier
ZIRCONIUM SILICATE Basic information
ZIRCONIUM SILICATE Chemical Properties
Safety Information
  • Hazard Codes Xn
  • Risk Statements 20-36/37/38
  • Safety Statements 26-36
  • WGK Germany 3
  • TSCA Yes
  • HS Code 28399090
  • Physical PropertiesColorless tetragonal crystals (when pure); presence of impurities forms various colors; density 4.56 g/cm3; hardness 7.5 Mohs; dissociates to ZrO2 and SiO2 above 1,540°C; melts at 2,550°C; insoluble in water, acids, aqua regia, and alkalies; inert in most chemicals.
  • ProductionZirconium silicate occurs in nature as mineral zircon. Ore is mined from natural deposits and concentrated by various techniques (See Zirconium, Recovery). It is separated from sand by electrostatic and electromagnetic methods.
    Also, the compound can be made by fusion of SiO2 and ZrO2 in an arc furnace, or by reacting a zirconium salt with sodium silicate in aqueous solution.
  • Chemical Propertiesgrey powder
  • Chemical PropertiesZirconium silicate is used as an additive to glass, in ceramic tiles, in ultrafiltration membranes, and as a dental abrasive.
  • UsesZirconium silicate (ZrSiO4) is one form of the mineral whose crystals when polished are known as cubic zircons, which resemble diamond gemstones.
  • UsesIn refractories, ceramics, glazes, cements, coatings for casting molds, polishing materials, gem stones, catalyst in alkyl and alkenyl hydrocarbon manufacture, in fritted glass filters, as stabilizer in silicone rubbers. In Europe in cosmetic creams and powders.
  • DefinitionA naturally occurring silicateof zirconium, ZrSiO4, used as a gemstone.The colour depends in smallamounts of other metals and may bered, brown, yellow, or green. Redgem-quality zircon is sometimescalled jacinth; gem-quality zirconswith other colours are called jargoons.There is also a naturally occurringcolourless variety. Zircongems can be given other colours, ormade colourless, by heat treatment.The colourless varieties (either naturalor treated) are sometimes calledMatura diamonds (after Matura in SriLanka). The name ‘zircon’ is often erroneouslyapplied to a synthetic formof the oxide cubic zircona, which isused as a diamond substitute.
ZIRCONIUM SILICATE Preparation Products And Raw materials
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