Difference between revisions of "Aerosil"
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aerosol silica; amorphous fumed silica; hydrophilic sillica | aerosol silica; amorphous fumed silica; hydrophilic sillica | ||
| − | == | + | == Applications == |
| − | + | == Personal Risks == | |
| + | Inhalation may cause silicosis; use dust mask. Particles can irritate eyes. | ||
| − | + | Degussa: [http://siri.org/msds/f2/bht/bhtlx.html MSDS] | |
| − | + | == Collection Risks == | |
| − | + | Non-flammable. Inert. | |
| − | + | == Environmental Risks == | |
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| − | == | + | == 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 == | |
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| − | == | + | == Resources and Citations == |
* G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 709 | * G.S.Brady, ''Materials Handbook'', McGraw-Hill Book Co., New York, 1971 Comment: p. 709 | ||
| Line 40: | Line 34: | ||
* Ceramics and Glass Conservation Section, List of Workshop Materials, The British Museum, London | * Ceramics and Glass Conservation Section, List of Workshop Materials, The British Museum, London | ||
| − | * MSDS Sheet | + | * MSDS Sheet at MFA: old CAS# = 68611-44-9 |
| − | * Product Information | + | * Product Information: Degussa AG product brochure |
| − | * | + | * www.walsh-assoc.com/continue.html |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Revision as of 10:53, 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
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