BSI - BS 4993-1
Methods of Test for Aluminium Fluoride for Industrial Use Part 1: Determination of Fluorine Content
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| Organization: | BSI |
| Publication Date: | 28 February 1974 |
| Status: | active |
| Page Count: | 10 |
| ICS Code (Salts): | 71.060.50 |
scope:
Fusion of a test portion with sodium carbonate and separation of the fluorine by distillation with sulphuric acid. Titration of the distillate with thorium nitrate solution using either sodium alizarinsulphonate with or without methylene blue as masking agents, or methylthymol blue as indicator.
Document History
BS 4993-1
February 28, 1974
Methods of Test for Aluminium Fluoride for Industrial Use Part 1: Determination of Fluorine Content
Fusion of a test portion with sodium carbonate and separation of the fluorine by distillation with sulphuric acid. Titration of the distillate with thorium nitrate solution using either sodium...
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