Silicon Dioxide

Synonym(s)

: Silica, quartz, dioxosilane, diatomaceous earth, cristobalite, tridymite

Mol. Formula

: SiO2

EC / List no.

: 601-214-2

CAS no.

: 112926-00-8

Molecular weight

: 60,08

Silica is a natural compound of silicon and oxygen mostly found in sand, Silica has three main types of crystals: quartz, tridymite and cristobalite. Silicon dioxide is a silicon oxide composed of linear triatomic molecules in which one silicon atom is covalently bonded to two oxygens.

Application

» This substance is widely used in coating products, inks and toners, adhesives and sealants, lacquers, putties, plasters, modeling clay, cosmetics and personal care products, washing and cleaning products, and pharmaceuticals.
» Stone, plaster, cement, glass or ceramics (eg dishes, pots/pans, food storage containers, construction and insulation materials), plastic (eg food packaging and storage, toys, mobile) and wood (eg floors, furniture) , toys) can be found in products with the material.
» Used in hydraulic fluids in automotive suspension, lubricants in engine oil, brake fluids, coolants in refrigerators and oil-based electric heaters.

Product Specifications

Physical and Chemical Properties
» Silicon dioxide appears as a white powder.
» It is odorless and tasteless.

Properties

Characteristics	Unit	Value	Condition
Boiling point	°C	2230
Melting point	°C	1710
Density	g/ cm³	2.2
Solubility			Insoluble with water
Vapor pressure	mm Hg	0
Corrosivity		Non corrosive
Heat of combustion		Non flammable