Catalog Number
ACM60676860-2
Chemical Name
Silicon Dioxide Nanospheres
Description
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.];PelletsLargeCrystals, OtherSolid, Liquid;DryPowder; Liquid;DryPowder; OtherSolid;DryPowder; DryPowder, Liquid; DryPowder, OtherSolid; Liquid; OtherSolid; PelletsLargeCrystals; WetSolid; WetSolid, Liquid;DryPowder; DryPowder, Liquid; DryPowder, PelletsLargeCrystals; OtherSolid; PelletsLargeCrystals;DryPowder; OtherSolid;DryPowder; DryPowder, Liquid; DryPowder, OtherSolid; DryPowder, OtherSolid, Liquid; DryPowder, PelletsLargeCrystals; DryPowder, PelletsLargeCrystals, Liquid; DryPowder, PelletsLargeCrystals, OtherSolid; DryPowder, PelletsLargeCrystals, WetSolid; DryPowder, WetSolid; Liquid; OtherSolid; PelletsLargeCrystals; PelletsLargeCrystals, OtherSolid; WetSolid; WetSolid, Liquid;PelletsLargeCrystals;White, fluffy powder or granules. Hygroscopic;Solid;FINE WHITE POWDER.;COLOURLESS OR WHITE CRYSTALS.;COLOURLESS WHITE CRYSTALS.;COLOURLESS OR WHITE CRYSTALS.;Solid;Transparent to gray, odorless powder. [Note: Amorphous silica is the non-crystalline form of SiO2.]
Synonyms
Quartz, silane, dioxo, Silicon (IV) Oxide, Cristobalite, Silica, Crystalline silica, Dioxosilane, Sand
Molecular Formula
(SiO2)n;SiO2;SiO2;SiO2;SiO2;SiO2;O2Si
InChI
InChI=1S/O2Si/c1-3-2
InChIKey
VYPSYNLAJGMNEJ-UHFFFAOYSA-N
Boiling Point
2,230° C (4,046° F)
Melting Point
1,600° C (2,912° F)
Purity
99%, 99.9%, 99.99%, 99.999%
Solubility
Insoluble (NIOSH, 2016);Insoluble;Silica is rather poorly soluble in water although solubility is higher for the amorphous than for the crystalline morphologies. ... The external amorphous layer in quartz is more soluble than the crystalline underlying core.;AMORPHOUS IS SOL IN ALKALIES, ESP WHEN FINELY DIVIDED;Practically insoluble in water or acids. Dissolves readily in HF, forming silicon tetrafluoride.;Very slightly sol in alkali.;Soluble in hot potassium hydroxide and hot sodium hydroxide solutions. Insoluble in ethanol.;Silica is rather poorly soluble in water and solubility is lower for the crystalline than for the amorphous morphologies. ...Solubility increases with temperature and pH and is affected by the presence of trace metals. Particle size influences the rate of solubility.;The external amorphous layer in quartz (the Beilby layer) is more soluble than the crystalline underlying core.;Solubility in water: none;Solubility in water: none;Solubility in water: none;Solubility in water: none;Insoluble
Color Form
Amorphous powder;Transparent to gray powder (Note: Amorphous silica is the non-crystalline form of O2Si). ... solid;Silica gel is a coherent, rigid, continuous three-dimensional network of spherical particles of colloidal microporous silica.;Transparent crystals
Hazard Statements
H319-H335-H373
Monoisotopic Mass
59.967 Da
Vapor Pressure
0 mm Hg (approx) (NIOSH, 2016);approx 0 mm Hg;10 mm Hg @ 1732 °C;0 mmHg (approx)
