Rongalite C, powder and lump,stable quality,competitive price,prompt shipment,professional service ,exporting more than 10 years Rongalite C, powder and lump. White translucent lumpish substance 98% 99% Mainly used as a discharging agent in printing and dyeing industry and as an activating agent for producing styrene-butadise rubber and synthetic resin. Besides, it is also used as a decolourant ...