characters:white crystalline powder
executive standards:q/370725syx 010-2022
packaging：in bulk
storage：kept in a dry, cool, well-ventilated place,protect from sun and rain.
main usage:calcium sulphate dihydrate is used as retarder in cement industry; gypsum products such as gypsum block and big board; it’s used as land improver; it can be used as road building material directly.
| item | unit | index |
| calcium sulfate content（in dry basis） | % | ≥90 |
| loss on drying | % | ≤45 |
| ph | / | ≥6 |