Калий едкий технический. Определение содержания железа. Фотометрический метод с применением 1,10-фенантролина
Название (англ.):
Potassium hydroxide for industrial use; Determination of iron content; 1,10- Phenanthroline photometric method
Описание (англ.):
Describes a method that is more sensitive and more widely used than the 2,2'-bipyridyl method. It is applicable to products having iron contents equal to or greater than 0.3 mg/kg. The principle is based on the reduction of iron(III) by hydroxylammonium chloride, formation of a iron(II)/1,10-phenanthroline complex in a buffered system. Photometric measurement of the coloured complex at a wavelength of about 510 nm. - Cancels and replaces ISORecommendation R 994-1969.
Дата регистрации:
01.06.73
Дата введения:
01.04.73
Дата отмены:
01.09.02
Код КГС:
Л19
Код ОКСТУ:
2133;2109
Код ОКС(МКС):
71.060.40
Код ОКП:
2133;2109
Нормативные ссылки:
BS 5634-1978, NEQ*NBN T 03-190-1980, EQV*NF T20-373-1977, EQV*NP-1082-1975, EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS DETERMINATION OF CONTENT IRON PHOTOMETRY PHOTOMETRY (CHEMICAL ANALYSIS) POTASSIUM HYDROXIDE POTASSIUM HYDROXIDES CHEMICAL ANALYSIS AND TESTIN SPECTROCHEMICAL ANA