碳酸钙

A new technology for producing PCC directly in the causticizing stage is reported in this paper.

介绍了一种苛化工段直接生产沉淀钙的新技术。

The value of oil absorption, viscosity of Nujol mull, specific surface area, contact angle, distribution of particle size and dispersivity of the calcium carbonate particles were also characterized.

对改性前钙粉体的接触角、吸油率、石蜡糊粘度、粒度分布、分散性等性能行了比较。

Calcifuge Describing plants that grow on soils containing very little calcium carbonate, such as sandy or peaty soils and cannot grow on basic substrates such as most chalk and limestone soils.

在钙含量低的土壤中生存的植物，例如在沙中生长。这种植物在石灰石之类的碱性基质中不能生长。