These include mass ratio of metallic powder to chromiumtrioxide and technological parameters of paint throwing off, drying and sintering processes.
金属粉与铬酐的质量比、甩液、烘干和烧结工艺参数。
2
A new cleaner technology for making chromiumtrioxide and potassium nitrate simultaneously by using nitric acid to decompose potassium dichromate has been brought forward.
提出了硝酸分解重铬酸钾法联产铬酸酐与硝酸钾的清洁工艺，并优选出过程中主要环节的合理操作条件。
3
Pyridine can react with halogens, nitronium fluoroborate, sulfur trioxide, boranes and chromiumtrioxide to form some useful organic reagents which are introduced briefly in the paper.