BS 4993-1:1974

Methods of test for aluminium fluoride for industrial use-Determination of fluorine content

BSI Group , 02/28/1974

Publisher: BS

File Format: PDF

$80.00$160.02

Description

Standard By:BSI Group , 02/28/1974

Published:02/28/1974

Pages:10

ISBN(s):0580083128

File Size:1 file , 390 KB

Language:English

Note:This product is unavailable in Ukraine, Russia, Belarus

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.Cross References:BS 410BS 1792BS 1848BS 2586BS 3145BS 3422BS 3978

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