Showing posts with label Sodium fluoride Exporters. Show all posts
Showing posts with label Sodium fluoride Exporters. Show all posts

Sunday, November 17, 2013

The main purpose of the Sodium fluoride



Sodium fluoride: shine colorless crystals or white powder, specific gravity 2.25, melting point 993 ℃ the boiling point of 1695 ℃. Soluble in water (20 ° C solubility 10 ° C 3.66, 4.06, 4.22, 40 °, 30 ° C C 4.4, 60 ° C 4.68, 4.89, 100 °, 80 ° C C5.08), hydrofluoric acid, slightly dissolve into alcohol. Weakly alkaline aqueous solution, but soluble in hydrofluoric acid and hydrogen fluoride sodium, can corrode the glass. Poisonous!
Main application: in coating industry for phosphating accelerator, stability of the phosphating liquid and phosphating refinement, improvement of phosphating film performance. Aluminum and its alloy phosphating damaging, closed a large negative catalysis of Al3 +, phosphating smoothly wood preservative, agricultural pesticides, fungicides, medicine, preservatives, welding flux, alkaline zincate galvanized additive and enamel, paper industry, etc.