| abstract |
An aqueous suspension with high solids content of pigments and / or filler material and / or minerals in an acidic pH environment, comprising: a) at least one material containing calcium carbonate comprising particles containing calcium carbonate, and b) at least one salt of at least one strong acid, wherein the at least one strong acid that forms the at least one salt of at least one strong acid is selected from the group consisting of acids that have a lower pKa value or equal to zero at + 23 ° C, where the high solids aqueous suspension has i) a solids content of at least 50% by weight, based on the total weight of the high solids aqueous suspension, ii ) a Brookfield viscosity at 100 rpm of <= 1,000 mPas at a temperature of -5 ° C, iii) a pH of <6 to + 23 ° C, and iv) a conductivity of between 10 and 100 mS / cm at -5 ° C and + 23 ° C, and wherein the high solids aqueous suspension comprises the at least one salt of at least one strong acid in an amount from 1 to 20% by weight, based on the total weight of the high solids aqueous suspension. |