... of washing the silk ribbon pharmaceutical , formating the fatty acid and refinement moving the vegetable fat. Textile printing and dyeing ... chemical industry is used for producing borax , Cymag , formic acid , oxalic acid , phenol ,etc.. The petroleum industry is used for refining ... of Drum:90cm)5. .Specification of Caustic soda Caustic soda flakes: 96% 98% 99%Caustic soda solid: 96% 98% 99% ...