Here is a list of 1015 Chemicals categories. It encompasses a wide range including calcium silicate, oxalic acid, calcium oxalate, sodium oxalate, etc. You can search for an overview, principle, and usage of each category, as well as find manufacturers and distributors.
*This ranking is solely among the companies registered with Metoree, sorted by the number of employees. Please use this as a rough guide to understand their scale.