Сера техническая. Определение содержания хлоридов. Фотометрический метод
Название (англ.):
Sulphur for industrial use; Determination of chloride content; Photometric method
Описание (англ.):
Is applicable to products having chloride contents, expressed as chlorine, greater than 2 mg/kg. The principle of determination consists in extracting the chlorides by boilling a test portion in aqueous 2-propanol, followed by a quantitative displacement of the thiocyanate ions of mercury(II) thiocynate by the chloride ions contained in an aliquot portion of the extraction solution, and reaction of the thiocyanate ions with iron(III) nitrate toform iron(III) thiocyanate.
Дата регистрации:
01.01.79
Дата введения:
01.11.78
Дата отмены:
30.05.02
Код КГС:
Л19
Код ОКСТУ:
2112;2109
Код ОКС(МКС):
71.060.10
Код ОКП:
2112;2109
Нормативные ссылки:
NBN T 03-386-1981, EQV*NP-1726-1981, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHLORIDES DETERMINATION OF CONTENT SPECTROPHOTOMETRIC ANALYSIS SPECTROPHOTOMETRY SULPHUR CHEMICAL ANALYSIS AND TESTIN