Overview
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.
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Physical Properties
| Melting Point | 1600-1602 °C |
| Boiling Point | 2950 °C |
| Density | 2.205 g/cm³ |
| Appearance | Amorphous silica, the noncrystalline form of SiO2, is a transparent to gray, odorless, amorphous powder |
| Color | 965 |
| Form | rod ( 1 / 8 ") |
| Refractive Index | n 20/D 1.544(lit.) |
Safety & Handling
Warning GHS07 GHS08 Hazard Statements H315 Causes skin irritation H319 Causes serious eye irritation H320 Causes eye irritation H335 May cause respiratory irritation H341 Suspected of causing genetic defects H350 May cause cancer H372 Causes damage to organs through prolonged or repeated exposure H373 May causes damage to organs through prolonged or repeated exposure Precautionary Statements P203 Obtain, consult and follow expert instructions for use. P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P318 IF exposed or concerned, get medical advice. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P302+P352 IF ON SKIN: Wash with plenty of water. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P332+P317 Get emergency medical help. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P362+P364 Take off contaminated clothing and wash it before reuse. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 28112200 |
| WGK (Germany) | 2 |
Other Names
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Chemical Properties
- CAS Number
- 60676-86-0
- EC Number
- 262-373-8
- Mol. Weight
- 60.084
- HS Code
- 28112200
- Category
- Salts & Minerals