The HPMC powder produced by the solvent method uses toluene and isopropanol as solvents. If the washing is not good, there will be some faint residual odor. This is a problem of the washing process, which does not affect the use or any problem, but in reality The hydroxypropyl methyl cellulose prod......

The price of zinc oxide powder has risen sharply for tire companies to raise prices again

Zinc oxide is an important chemical material that has been seen everywhere in our lives.