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ISO 2866:1974

$12.35

Sulphur for industrial use — Determination of total carbon content — Titrimetric method

Published By Publication Date Number of Pages
ISO 1974-11 7
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Gives the potentiometric and visual methods als alternatives for the final titration. The principle consists in the combustion of the sulphur in a current of oxygen. Oxidation and fixation of the sulphur dioxide and trioxide gases in chromic and sulphuric acid solutions. Absorption of the carbon dioxide formed in a solution of barium hydroxide, followed by titration in the presence of phenolphthalein and screened methylorange (by xylene cyanol FF) as indicator. Has also been approved by the IUPAC.

ISO 2866:1974
$12.35