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Determination of Arsenic(III) and Arsenic(V) in Coal and Oil Fly Ashes

✍ Scribed by Silberman, Dave; Harris, Wesley R.

Book ID
121349930
Publisher
Taylor and Francis Group
Year
1984
Tongue
English
Weight
506 KB
Volume
17
Category
Article
ISSN
0306-7319

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For determination of trace elements in coal by wet chemical methods, the decomposition reaction with nitric acid under elevated pressure was investigated. In the case of carbon-rich fly-ash, it was necessary to add hydrofluoric acid. Treatment for 20 h at about 140Β°C was sufficient for complete demi