摘要 |
PURPOSE:To obtain the titled easily handleable molded article from an inexpensive raw material, with a simple process, at a low cost, by compounding a granular sodium percarbonate with calcium hydroxide and forming the mixture in dried state. CONSTITUTION:100pts.(wt.) of granular sodium percarbonate is compounded with 30-2,000pts. of calcium carbonate, and the mixture is formed in dried state to an average particle diameter of preferably >=5mm to obtain the objective article. A composition for improving the living environment of aquatic life can be produced by compounding 100pts. of the molded article with 100-10,000pts. of fine aggregate having an average particle diameter of <=5mm.
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