Potassium carbonate,INDUSTRY GRADE Potassium carbonate, K2CO3, also called tartar salt, molecular weight 138.21, pure ... : NAME1-type2-typeITEMHigh-classFirst-classSecond-classColor TV classContent of potassium carbonate (%)≥99.00≥98.5≥96.0≥99.0Content of chloride ... is used in manufacturing dyestuff and dope, which can make products bright, and prevent dope from shedding and washing; 9. Rubber ...