Caustic Soda (Sodium Hydroxide) 96%,99% - NaOH Flake,Solid,Pearl / CAS No.: 1310-73-2 Origin: Tianjin, Neimenggu, Hunan Caustic ... luster of mercerized cotton fabrics. The chemical industry is used for producing borax , Cymag , formic acid , oxalic acid , phenol ,etc.. ... The petroleum industry is used for refining the petroleum products, is used in the well drilling ...