Yantai Dasteck Chemicals Co., Ltd.
Yantai Dasteck Chemicals Co., Ltd.: “Manufacturer of Thiourea Dioxide (TDO, CAS 1758-73-2) for textile reduction, paper-grade Formamidine Sulfinic Acid (FAS) for pulp and paper, and Thiourea and Dicyandiamide for specialty use. Producing TDO since 1983, and a participating drafting unit of the Chinese industry standard for thiourea dioxide, HG/T 3258-2010.”
What is the environmental impact of FAS?
“FAS has a different environmental profile from sodium dithionite. Overall impact depends on effluent volume, COD, nitrogen load and the mill treatment process; compare the complete process rather than assuming one chemical is universally lighter.”
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