Electric Properties of Collodion.--& Seure states that collodion, in thin sheets, is negative towards all other bodies. In interpreting the therapeutic eltbcts ()f eollo(liou, "recount should be taken of its electric power. (iutta l)ereha, when it is electrified, presents modifications whieh are ana
โฆ LIBER โฆ
The electric furnace
- Publisher
- Elsevier Science
- Year
- 1911
- Tongue
- English
- Weight
- 85 KB
- Volume
- 171
- Category
- Article
- ISSN
- 0016-0032
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ductility of tungsten so that it can be made into wire for lamp filaments. The tungsten is treated at red heat with a mixture of hydrogen and sulphur chloride. This removes any tungsten oxide, which is a cause of brittleness. The oxide is converted into sulphide, and the sulphide reduced by hydrogen