Difference between revisions of "Aerosil"
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Degussa: [http://siri.org/msds/f2/bht/bhtlx.html MSDS] | Degussa: [http://siri.org/msds/f2/bht/bhtlx.html MSDS] | ||
| + | CDH Fine Chemical [https://www.cdhfinechemical.com/images/product/msds/35_1832609663_Aerosil200(FumedSilicaGel)-MSDS.pdf SDS] | ||
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== Collection Risks == | == Collection Risks == | ||
Non-flammable. Inert. | Non-flammable. Inert. | ||
Revision as of 09:55, 21 July 2020
Description
[Degussa-Huls] A registered trademark for an ultra-fine powdered Silica. Aerosil® is a colloidal form of silica that is a very light and fluffy powder. It is made by burning silicon tetrachloride in a hydrogen-oxygen furnace. This produces spherical particles; the particle size can be controlled and varying grades are available ranging in size from 4 to 25 micrometers. The fine particle size provides a high surface area. Aerosil® particles can absorb up to 40% of their own weight and still perform as a powder. It is used as a filler, thickener, and as a matting agent in paints.
Synonyms and Related Terms
aerosol silica; amorphous fumed silica; hydrophilic sillica
Applications
Personal Risks
Inhalation may cause silicosis; use dust mask. Particles can irritate eyes.
Degussa: MSDS CDH Fine Chemical SDS
Collection Risks
Non-flammable. Inert.
Environmental Risks
Physical and Chemical Properties
- pH = 3.6-4.5
- CAS = 112945-52-5
- Melting Point = 1700
- Density = about 2.2
- Refractive Index = 1.45
Working Properties
Forms and Sizes
Resources and Citations
- G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 709
- Ceramics and Glass Conservation Section, List of Workshop Materials, The British Museum, London
- MSDS Sheet at MFA: old CAS# = 68611-44-9
- Product Information: Degussa AG product brochure
- www.walsh-assoc.com/continue.html