Phosphoric Acid

Descripción del producto

Molecular formula: H3PO4 Quality of Standard: GB/*********2 Molecular Weight: *7.*9 Character of Phosphoric Acid: *5% of phosphoric acid is colorless and transparent or slightly bringing the tint, thick shape liquid. The melting point is *2 centigrade and boiling point is **3 centigrade. At this time it loses 1/2 H2O, and then it produces sodium pyrophosphate. When it is heated up to **0 centigrade, it becomes sodium metaphosphate. It is easy to dissolves in water and ethanol. Comparing to strong acid such as vitriol, hydrochloric acid and nitric acid, the acidity is weak. But its acidity is stronger than acetic acid and boric acid, so it has the corrosive nature when the thick phosphoric acid heats up in porcelain. It also has the absorbability of water. Usage: The phosphoric acid is used to make feed by using calcium hydrogen, and the phosphorization of metal surface. It also can confect the electrolysis polishing fluid and chemical polishing fluid, and which used to polish the aluminum product. In medical industry, it is used to make sodium glycerol-phosphate and ferric phosphate. To be extend, it also used t fabricate zinc phosphate as bond in dentistry. It also serves as the catalyzed in the phenolics condensation, and as the dying agent in dye and intermediate production. In pointing industry, it serves as cleaning liquid to clean the dirty on the offset plate, it also used to make the impregnation liquid of match stick. In metallurgical industry, it is used to produce the phosphoric acid clay, and enhance the life of steel-smelting furnace. It is the coagulator of rubber pulp and the raw material of the production inorganic cementing agent. In painting industry, it uses as antirust paint. Packing, Storage and Transportation: The phosphoric acid is packed with the ethane plastic pail; it must be blocked out tightly by inner cover and outside cover. It must have visible sign, which contents: the name of product, standard, weight and causticity of product