Продукты химические технические. Общий метод определения cледов сернистых соединений в форме сульфата с применением восстановления и титриметрии
Название (англ.):
Chemical products for industrial use; General method for determination of traces of sulphur compounds, as sulphate, by reduction and titrimetry
Описание (англ.):
Describes a method based on prior conversion of the sulphur compounds in a test portion to sulphate, if required, and reduction of the sulphate ions ti hydrogen sulphide by a mixture of hydriodic and phosphinic acids in the presence of hydrochloric acid. The hydrogen sulphide is entrained in a current of nitrogen and absorbed in a solution of sodium hydroxide inaqueous acetone, followed by titration of the sulphide ions with standard volumetric mercury(II) acetate or nitrate solution in the presence of 1,5-diphenyl-3-thiocarbazone (dithiozone) as indicator.
Дата регистрации:
01.02.81
Дата введения:
01.11.80
Код КГС:
Л19
Код ОКСТУ:
2141;2109
Код ОКС(МКС):
71.040.40
Код ОКП:
2141;2109
Нормативные ссылки:
BS 6337 PART 1-1983, EQV*NBN T 02-205-1982, EQV*NEN-ISO 6228-1982, EQV*NF T20-059-1982, EQV*UNE 55-577-90(1990/AENOR), EQV
Ключевые слова:
CHEMICAL ANALYSIS CHEMICAL ANALYSIS AND TESTING CHEMICALS DETERMINATION OF CONTENT REDUCTION METHODS SULPHUR SULPHUR COMPOUNDS TEST EQUIPMENT TRACE ELEMENT ANALYSIS TRACE ELEMENTS VOLUMETRIC ANALYSIS CHEMICAL ANALYSIS AND TESTIN