COATED SODIUM PERCARBONATE PARTICLES

摘要

Sodium percarbonate particles with a coating layer which contains sodium sulphate in the form of a high-temperature phase of sodium sulphate and/or a high-temperature phase of a double salt having the composition Na4(SO4)1+n( CO3)1-n, in which n equals 0 to 0.5, exhibit improved storage stability in d etergent and cleaning agent preparations, in comparison with sodium percarbo nate particles with a coating layer which contains sodium sulphate only in t he form of sodium sulphate (V) or burkeite.