It is shown that expansible ettringite forms in the topochemical reaction,and crystallizes in-situ on the surface of unhydrated aluminate minerals and orients radially.
Modified calcium aluminate as a purifying agent, with two functions both of coagulability and desaltification, can be produced from industrial waste slag from alumina plant.
Strontium aluminate is more expensive, but it has a longer persistence, which means it emits visible light more slowly, and glows longer after being energized.
口侵蚀后的脱落物有关。
聚合铝所用原料中的氧
铝溶出率＊的测
方法。
反应所生成；它们在未
列
有硫化锌和铝酸锶。
贵，但持
