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ISO 2482:1973

Sodium chloride for industrial use — Determination of calcium and magnesium contents — EDTA complexometric methods

Standard Details

The method is applicable to water-soluble salts for contents greater than 0,001 % (m/m). In a special case, the determination of ions in a principal solution prepared in an acid medium is pooible. The principle consists in dissolution of a test portion and separation of insoluble matter. Titration of the filtrate obtained according to ISO 2479 using disodium ethylendiamintetraacetate (EDTA) in the presence of glyoxal-bis-(2-hydroxyanil) (GBHA) and mordant black 11 (Cl 14645) respectively as indicators.

General Information

Status : Published
Standard Type: Main
Document No: ISO 2482:1973
Document Year: 1973
Pages: 3
Edition: 1

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ISO 2482:1973
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