Numéro de référence
ISO 741:1976
ISO 741:1976
© ISO 2024
ISO 741:1976
Carbonate de sodium à usage industriel — Dosage de l'hydrogénocarbonate de sodium — Méthode titrimétrique
Edition 1
1976-02
1976-02
Annulée
Résumé
The method is applicable to sodium carbonate products having a sodium hydrogen carbonate contained in a test portion into sodium carbonate by addition of a known excess of sodium hydroxide, precipitation of all the carbonate by means of barium chloride an determination of the excess of sodium hydroxide by means of a standard volumetric hydrochloric acid solution.