| abstract |
1.0 g of the particles were suspended in a mixture of deionized water, 80 ml of aqueous phase consisting of 11.76 g / L of citric acid monohydrate, 2.57 g / L of NaCl and 0.068 mol / L of NaOH and 20 ml of toluene, 25 As a moisture pickup below 2 g water / kg calcium carbonate after storage for one week at a pH of less than 7 or at 22 < 0 > C and 50% relative humidity, (DSC) spectrum showing at least one peak at 170-190 占 폚 as measured at a heating rate of 10 占 폚 / min under a nitrogen atmosphere at 250 占 폚. The alkaline earth metal carbonate exhibits acid resistance. A process for producing the particles, a composition containing the particles, and uses thereof. Index Alkaline earth metal carbonates, acid resistance |