Formula: NaOH Properties: Colorless crystaline with the shape of flake, block , and granula. Specifications: Items Standard NaOH (%) ≥ 99.00 Fe2O3 (%) ≤ 0.005 Na2CO3(%) ≤ 0.7 NaCl(%) ≤ 0.05 Remark: customized is also achieved. Application: It is the main raw materials for the production of soap; In the papermaking industry ,it can dissolve the impurity of the wood pulp , so that the pure fibre can be available the papermaking ; in Textile Industry it can be used in the production of the fabric ;In oil refining industry,it is used to remove the acids in the oil and improve the smell and color of the oil & petroleum products . Packing: 25kg /P.P.Bag.