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BS 4427-6:1974

Methods of test for sodium tripolyphosphate (pentasodium triphosphate) and sodium pyrophosphate (tetrasodium pyrophosphate) for industrial use - Estimation of pyrophosphate content of sodium pyrophosphate

Standard Details

Potentiometric method after conversion of the tetrasodium pyrophosphate to disodium dihydrogen pyrophosphate and precipitation of the pyrophosphate with liberation of sulphuric acid. Applicable to products containing at least 90 per cent of tetrasodium pyrophosphate and in the absence of more condensed forms of phosphate.

General Information

Status : Confirmed
Standard Type: Main
Document No: BS 4427-6:1974
Document Year: 1974
Pages: 8
  • Section Volume:
  • GBM38 Chemical Technology (GMB38)

Life Cycle

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Confirmed
BS 4427-6:1974
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