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ISO 2482:1973

Sodium chloride for industrial use -- Determination of calcium and magnesium contents -- EDTA complexometric methods
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ISO 2482:1973

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

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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.

SDO ISO: International Organization for Standardization
Document Number ISO 2482
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 47
Publish Date Document Id Type View
Not Available ISO 2482:1973 Revision