8 октября, 2015 
Pokraskin Production is similar to that oflithopone.
A Na2S solution is mixed with a zinc salt solution under precisely controlled conditions. The resulting zinc sulfide precipitate is calcined and processed to give the finished product.
Na2S + ZnSO4 ^ZnS + Na2SO4
2.2.2.4
Опубликовано в рубрике 