1.name:Sodium Hydrate,Caustic Soda 2.Formula: NaOH 3.Apperance: white crystal flakes,or pearls 4.Factory price 1.Nature: ... The pure product is the colourless transparent crystal, relative ... including:PVC, melamine, urea, ammonium chloride,polyvinyl alcohol, paraffin, sodium hydroxide, and so on. For more information , pls feel free ...