determination of sulpher in coal......
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Explanation:
The sulphate sulphur is determined by extraction of coal with dilute hydrochloric acid. 5 gm. of coal (100 mesh) is digested with 300 c.c. of 3% hydrochloric acid for 40 hours at about 60°C. A higher temperature would cause the sulphur to escape as sulphuretted hydrogen gas.
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Explanation:
the sulphate sulphur is determined by the extraction of coal and Hydrochloric sulfuric acid .
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