ISO-6121 › Surface active agents -- Technical alkane sulfonates -- Determination of alkane monosulfonates content by direct two-phase titration
ISO-6121
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2ND EDITION
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CURRENT
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The determination is carried out in a consisting of an aqueous phase and a chloroform phase, in the presence of sodium sulfate, by titration against a standard volumetric cationic-active solution (benzethonium chloride), in the presence of an indicator consisting of a mixture of a cationic dye (dimidium bromide) and an anionic dye (acid blue 1).
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71.100.40 (Surface active agents)
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Document Number
ISO 6121:1988
Revision Level
2ND EDITION
Status
Current
Publication Date
June 1, 1988
Committee Number
ISO TC 91