Sodium sulphide - Import export

Natural sodium sulphate is free from the heavy metals such as arsenic, lead, zinc, chrome which are present in sulphate produced by chemical methods nor toxic minerals. Against the slightly acidic chemically produced ones, the natural sodium sulphate has a pH value of 7-9 which indicates the absence of any acidity. Production rate and prices are rather uniform, since the production doesn’t depend on any raw material. These advantages make natural sodium sulphate preferable in pulp-paper and glass industries. And in the detergent industry, where sodium sulphate is used up to 40% by wt., the complete absence of toxic minerals and the neutral pH zone is of crucial importance.