Capacitance grade phosphoric acid

Chemical formula: H₃PO₄  molecular formula: H₃PO₄ 

Molecular weight: 97.99

CAS No.: 7664-38-2

Product grade: electric capacity grade

character:

Colorless, transparent, viscous liquid or orthorhombic crystal, odorless, very sour taste, melting point 42.35 ℃, heated to 300 ℃ into metaphosphoric acid, relative density 1.834, easily soluble in water and ethanol, can stimulate skin, cause inflammation and destroy body tissue, has corrosive effect and hygroscopicity when heated in porcelain.                                                                                                                                                            

Application: it is used in the production of various phosphates, phosphating treatment of metal surface, preparation of electrolytic polishing solution and chemical polishing solution, as catalyst, desiccant and cleaning solution, in the production of phosphoric acid refractory mud, inorganic binder and metal antirust paint in coating industry; Food phosphoric acid is used as sour agent and yeast nutrient. It can be used as sour agent for condiments, cans and cool drinks. It can be used as yeast nutrient source during brewing to prevent the reproduction of miscellaneous bacteria.      

Packaging and storage: packed in polyethylene plastic barrel with a net weight of 1500kg. The barrel mouth must be tightly closed with inner and outer covers; It is a class II inorganic acid corrosive product, with hazard code No.: 93002; It freezes easily in winter.  

Technical indicators

Name: capacitor level

Appearance: colorless transparent thick liquid

Phosphoric acid (H₃PO₄ )% ≥ 85

Iron (FE) ppm ≤ 2

Chloride (calculated by Cl -) ppm ≤ (as Cl -) 1

Heavy metals (calculated by Pb) ppm ≤ (as Pb) 5

Sulfate (calculated as so) ppm ≤ (as so) 5