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- Forsterite Powder (synthetic & natural) Synonyms:
forsterite powder, synthetic forsterite, natural forsterite, chrysolite, ICSD 9334, olivine, PDF 34-189, peridot, forsterite, magnesium silicate, boltonite, peridoto bianco, white olivine,
- Forsterite Powder (synthetic & natural) Designations:
Chemical Name: Forsterite
Chemical Formula: 2MgO-SiO4
a) Forsterite is a stoichiometric Magnesium Orthosilicate utilized for applications requiring a high coefficient of thermal expansion.
b) It is calcined and milled under controlled conditions and can be modified to meet priority specifications.
c) It is a member of the Olivine Group.
a) MgO= 56.0%, and SiO2= 43.0
b) Natural forsterite is also available and it has a high iron content (8-10%) as Fayalite
MgO= 56.0% and SiO2= 43.0%
a) Lump & Granule Products: 2 1/2" X 1 1/4" , 2" by down (unscreened), 4 X 10 mesh USS and 6 X 20
b) Foundry Sand Products: 20X 270 mesh USS, 20 X 200, 30 X 200, 30 X 325, 40 X 325, and 140 by down
c) Blasting Abrasive Products: 16 X 70 mesh USS, 16 X 140, 20 X 100, and 30 X 170
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Melting Point (deg.C)
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~1910
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Molecular Weight
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140.71
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Solubility
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Hot HCl
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Percent On 325 Mesh (wet screen analysis)
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>0.5%
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Apparent Tap Bulk Density (g/cc)
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1.1345
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True Density (g/cc)
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3.21- 3.33
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Dry Specific Gravity (g/cm3)
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2.736
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Bulk Density, Loose (g/cm3)
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1.45- 1.75
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Melting Point (ºC)
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1810
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Thermal Expansion (mean)
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10.5 x 10 -6
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Thermal Conductivity (Cal/Cm secºC @ 1540°C)
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0.0035
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Mohs Hardness @20°C
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6.0 - 7.0
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Crystal Formation
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Orthorhombic
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Color
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Greenish
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Substrates, high frequency electronics, thick films, ceramic metal seals, and high temperature bonding agents
50 lbs.Bags, 100 lbs. bags, bulk bags and loose bulk
Listed.
Possibly the same as Olivine
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