SILICON (IV) OXIDE

CAS #: 7631-86-9
SKU: 7631-86-9

Transparent to gray, odorless powder. Irritating to the skin and eyes on contact. Inhalation will cause irritation in the respiratory tract. [Note: Amorphous silica is the non-crystalline form of SiO2.]

Additional Information

Additional information

CAS No

7631-86-9

Formula

SiO2

Synonyms

SILICON DIOXIDEDiatomaceous earthInfusorial earthSilicic anhydride

Chemical Options

Item No.11119
Molecular Weight287.54 (161.43)
Particle Size-150 mesh
Solubilitysolubility-in-water-g-100ml-at-20-degc-54
Melting Point100-degc
Density1.97 g/cm³
Item No.11287
Molecular Weight287.54 (161.43)
Particle Size< 5 microns average
Solubilitysolubility-in-water-g-100ml-at-20-degc-54
Melting Point100-degc
Density1.97 g/cm³
Item No.11475
Molecular Weight259.34 (187.28)
Particle Size1-3 mm pieces, fused
Item No.11635
Molecular Weight610.11 (465.99)
Particle Size50 mesh
Item No.12859
Molecular Weight133.34
Particle Size< 10 microns average
SolubilityWater reactive
Melting Point381-degf-uscg-1999
Density2-44-at-77-degf-uscg-1999
Item No.12909
Molecular Weight133.34
Particle Size3-12 mm granules, fused
SolubilityWater reactive
Melting Point381-degf-uscg-1999
Density2-44-at-77-degf-uscg-1999
Item No.13845
Molecular Weight133.34
Particle Size-325 mesh, < 3 microns avg
SolubilityWater reactive
Melting Point381-degf-uscg-1999
Density2-44-at-77-degf-uscg-1999
Item No.90127
Molecular Weight134.45
Particle Size-325 mesh
SolubilitySoluble in acetone.
Melting Point630-degc-extrapolated
Density2-54-at-68-degf-uscg-1999
Item No.90667
Molecular Weight74.56
Particle Size-325 mesh
Solubilitygreater than 100 mg/mL at 68deg F (NTP, 1992)
Melting Point1418-degf-ntp-1992
Density1.984 (NTP, 1992)
Item No.90746
Molecular Weight74.56
Particle Size-150 mesh
Solubilitygreater than 100 mg/mL at 68deg F (NTP, 1992)
Melting Point1418-degf-ntp-1992
Density1.984 (NTP, 1992)
Item No.90787
Molecular Weight74.56
Solubilitygreater than 100 mg/mL at 68deg F (NTP, 1992)
Melting Point1418-degf-ntp-1992
Density1.984 (NTP, 1992)
Item No.90934
Molecular Weight74.55
Particle Size< 1 micron average
Solubilitygreater than 100 mg/mL at 68deg F (NTP, 1992)
Melting Point1418-degf-ntp-1992
Density1.984 (NTP, 1992)
Item No.90960
Molecular Weight42.39
Particle Size-40 mesh
SolubilityVery soluble (NTP, 1992)
Melting Point1121-degf-ntp-1992
Density2-068-at-77-degf-ntp-1992

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