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Vitreous silica

CAS Number
60676-86-0
EC Number
262-373-8
Chemical Formula
O2Si
Molecular Weight
60.084 g/mol

Description

Vitreous silica (CAS 60676-86-0 ), also sold as silicon dioxide or silica, is an amorphous, non-crystalline form of SiO₂ produced through high-temperature fusion. It functions as a rheology modifier and stabilizer. This versatile material acts as a flow control agent across a broad range of industrial and consumer product formulations. In coatings, adhesives, and sealants, it controls viscosity and prevents sagging. It improves thixotropic behavior in both solvent-borne and waterborne systems. Rubber compounders incorporate it as a reinforcing filler and processing aid, contributing to dimensional stability in molded profiles. Food and personal care manufacturers use approved grades as an anti-caking agent and carrier in powdered products. This includes everything from seasoning blends to various pressed cosmetic powders. In agriculture, it functions as a flow conditioner in granular pesticide and fertilizer formulations. This reduces clumping during storage and handling to ensure consistent application in the field. The product is supplied as a fine white powder in a range of particle sizes and surface area specifications. These are tailored to meet specific end-use performance requirements for various industries. Food-grade material is available to FCC and E551 specifications for use in food and feed applications. These standards ensure the highest level of safety and compliance for consumers. Technical and fumed grades are also commercially available for industrial coating, rubber, and polymer applications. These grades provide the necessary structural integrity for demanding manufacturing environments. Contact us for supply of Vitreous silica Request Quote

Other Names (Synonyms)

SILICON DIOXIDE | Silica | Silicic anhydride | Diatomaceous silica | Wessalon | Zorbax sil | Silica, amorphous | Silica, colloidal

Key Technical Features

  • High Purity Grade standard
  • Consistent Batch Quality
  • Full Regulatory & REACH Support
  • Global Logistics Network enabled

Physical Properties

Melting Point1600-1602 °C
Boiling Point2950 °C
Density2.205 g/cm³
AppearanceAmorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder
Color965
Formrod ( 1 / 8 ")
Refractive Indexn 20/D 1.544(lit.)

Safety & Handling

Warning
GHS07· IrritantGHS08· Health Hazard

Hazard Statements

H315Causes skin irritation
H319Causes serious eye irritation
H320Causes eye irritation
H335May cause respiratory irritation
H341Suspected of causing genetic defects
H350May cause cancer
H372Causes damage to organs through prolonged or repeated exposure
H373May causes damage to organs through prolonged or repeated exposure

Precautionary Statements

P203Obtain, consult and follow expert instructions for use.
P260Do not breathe dust/fume/gas/mist/vapours/spray.
P261Avoid breathing dust/fume/gas/mist/vapours/spray.
P264Wash … thoroughly after handling.
P270Do not eat, drink or smoke when using this product.
P271Use only outdoors or in a well-ventilated area.
P280Wear protective gloves/protective clothing/eye protection/face protection.
P318IF exposed or concerned, get medical advice.
P319Get medical advice/attention if you feel unwell.
P321Specific treatment (see … on this label).
P405Store locked up.
P501Dispose of contents/container in accordance with local regulations.
P265Wash … thoroughly after handling.
P352IF ON SKIN: Wash with plenty of water.
P340IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P317Get emergency medical help.
P317If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P364Take off contaminated clothing and wash it before reuse.
P233Store in a well-ventilated place. Keep container tightly closed.
P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code28112200
WGK (Germany)2