Вещества поверхностно-активные. Технические алкансульфонаты. Определение средней относительной молекулярной массы и содержания алканомоносульфонатов
Название (англ.):
Surface active agents; technical alkane sulfonates; determination of the mean relative molecular mass of the alkane monosulfonates and the alkane monosulfonate content
Описание (англ.):
A test portion is dissolved in ethanol and the solution is acidified. The alkane monosulfonic acids are separated from the alkane disulfonates and sulfate ions by extraction with light petroleum. The light petroleum phase is evaporated and the residue is solved in ethanol. Traces of alkali are removed by means of a cation-exchange column. The eluate is neutralized withcarbonate-free sodium hydroxide solution. The sodium alkane monosulfonates so formed are dried and weighed. The mean relative molecular mass of the alkanemonosulfonates and the alkanemonosulfonate content are calculated.
Заменяет стандарты:
ISO 6845(1982.12)
Дата регистрации:
01.09.89
Дата введения:
15.07.89
Код ОКС(МКС):
71.100.40
Нормативные ссылки:
DIN ISO 6845-1985, NEQ*NF ISO 6845(1989/AFNOR), EQV*NBN ISO 6845(1990/IBN), EQV*NEN-ISO 6845(1990/NNI), EQV*NF T73-238(1989/AFNOR), EQV*BS 6829 PART 2 SECTION 2.2(1989/BSI), EQV ISO 385-1-1984*ISO 607-1980
Ключевые слова:
ALKANE SULPHONATE ALKANES ALKYL COMPOUNDS ALKYLSULPHONATES ANALYSIS CHEMICAL ANALYSIS AND TESTING DEFINITIONS DETERMINATION DETERMINATION OF CONTENT EXTRACTION METHODS OF ANALYSIS MOLECULAR WEIGHT QUANTITATIVE ANALYSIS SULPHONATE COMPOUNDS SURFACE ACTIVE AGENTS SURFACTANTS TESTING TESTS ANALYSIS CHEMICAL ANALYSIS AND TESTIN EXTRACTION METHODS OF AN SULPHONATES