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BS 4258-3:1975

Methods of test for phosphoric acid (orthophosphoric acid) for industrial use - Determination of sulphate content

Standard Details

Reduction of the sulphate in a test portion to sulphide, absorption of the evolved hydrogen sulphide in acetone and sodium hydroxide solution and titration with mercury (II) acetate using dithizone as indicator.

General Information

Status : WITHDRAWN
Standard Type: Main
Document No: BS 4258-3:1975
Document Year: 1975
  • Section Volume:
  • GBM38 Chemical Technology (GMB38)

Life Cycle

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WITHDRAWN
BS 4258-3:1975
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