Possibility to decrease waste-water pollution with Chromium salts was studied by means of adding specially selected chemicals to the Cr (VI)-based mordant baths. These special chemicals made the rate of complexation be 4-6 times higher; at the same time residual Cr (VI) concentration became 4-5 times lower.
хромовые красители, бихромат калия, лигносульфонаты, тиокарбамид, гидрохинон, сточные воды, mordant dyestuffs, Potassium bichromate, lignosulphonates, thiocarbamide, hydroquinone, waste-water
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