REAGENT PRECIPITATION OF HARDNESS IONS BY CARBONATE-CONTAINING BUILDERS
Научная публикация
REAGENT PRECIPITATION OF HARDNESS IONS  BY CARBONATE-CONTAINING BUILDERS
Автор(ы): A.I. Sumich, L. S. Eshchenko, A.D. Alekseyev, O.Yu. Fedorova
УДК: 661.185.6:543.32
Год издания: 2014
Дата загрузки: 01.12.2015
Загрузил(а): Рогова О. А.

Описание:
Phase composition of carbonate containing builders obtained by neutralization of proton containing reagents with sodium carbonate is investigated. Itis shown that the builders are a mixture consisting mainly of Na2CO3· NaHCO3· 2H2O, Na2CO3· H2O and salts of the corresponding acids. The mixture is able to reduce total water hardness with 3.9 to 1.6–1.7 mmol-eq·l –1 . It is found that the builders containing Na2CO3· NaHCO3· 2H2O, Na2CO3· H2O and CH3COONa · 3H2O remove hardness as well as Na2CO3, Na3PO4· 12H2O and STPP at the same flow rate.

Использование электронных материалов, размещенных на данном сайте, осуществляется на договорной основе. Разрешается использовать ресурсы в единичном экземпляре и исключительно в личных целях.



ChemistryTechnology of Inorganic Materials and Substances