Active standard | Published: 01/02/1975

ISO 3199:1975

Sodium chlorate for industrial use — Determination of chlorate content — Dichromate titrimetric method
(Chlorate de sodium a usage industriel — Dosage du chlorate — Méthode titrimétrique au dichromate)

Available languages: English, French

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Detail information

Designation: ISO 3199:1975

Publication date: 01/02/1975

Pages: 2

Country: International technical standard

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Anotation

Description / Abstract: Not applicable to the analysis of mixtures for agricultural use such as herbicides or pesticides. Indicates the risk in handling with clorates. Dissolution of the test portion in water and reduction by a known quantity, in access, of an iron(II) salt in a sulphuric acid and orthophosphoric acid medium. Titration of the excess iron(II) salt with a standard volumetric solution of potassium dichromate in the presence of barium diphenylamine-4-sulphonate solution as indicator.

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