[Sell] Caustic soda(sodium hydroxide) Cas No. :1310-73-2 Quantity: 500Metric Tons Specs:Flakes, granula, block Price:265 Metric Tons Payment Method: T/T OR L/C Specifications:Items Standard NaOH Content (%) ≥ 99.00 Fe2O3 (%) ≤ 0.005 Na2CO3(%) ≤ 0.7 NaCl(%) ≤ 0.05 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 .