Anhydrous Phosphoric Acid
Physical state and appearance: Liquid. (Syrupy liquid Viscous liquid.) Odor: Odorless. Taste: Acid. Molecular Weight: 97.99 Color: Clear Colorless. P H (1% soln/water): Acidic. Boiling Point: 158°C (316.4°F) Melting Point: 21°C (69.8°F) Specific Gravity: 1.685 @ 25 C (Water = 1) Vapor Pressure:...
Physical state and appearance: Liquid. (Syrupy liquid Viscous liquid.)
Molecular Weight: 97.99
Color: Clear Colorless.
PH (1% soln/water): Acidic.
Boiling Point: 158°C (316.4°F)
Melting Point: 21°C (69.8°F)
Specific Gravity: 1.685 @ 25 C (Water = 1)
Vapor Pressure: 0.3 kPa (@ 20°C)
Vapor Density: 3.4 (Air = 1)
Dispersion Properties: See solubility in water.
Solubility: Easily soluble in hot water. Soluble in cold water.
Phosphate or orthophosphoric acid (H3PO4), is a kind of common inorganic acid, is of strong acid. By the phosphorus pentoxide can be soluble in hot water. Orthophosphoric acid treatment of sulfuric acid industry apatite for a quick. Phosphoric acid easily deliquesce in the air. Heating will get pyrophosphate, filtration metaphosphate in further water loss. Phosphoric acid is mainly used in pharmaceutical, food, fertilizer and other industries, can also be used as chemical reagents.
Industry for the production of inorganic acid manganese phosphate, potassium pyrophosphate and various kinds of phosphate. Pharmaceutical agents used in the manufacture of glycerin, sodium phosphate, nervous system), dental materials adhesive) and penicillin Ph regulator, etc.
Plastic industry for the production of the condensation reaction of phenolic resin catalyst. Daily chemical industry used as detergent additives, used for impregnation match stick, make a match use safer. Refractory mortar metallurgical industry for the production of phosphoric acid, can improve steel furnace life, etc. The food industry used as acidic flavoring. Coatings used for metal antirust paint.  in the production of silicon planar and integrated circuit, commonly with aluminum film as electrode wire, need printing on aluminium film, using phosphoric acid as acid cleaning etchant.
Phosphoric acid in the field of water treatment are mainly used as water softener, scale cleaner, and used as a production material of phosphorus-containing water treatment agent, etc. There are many other USES, phosphate high purity phosphoric acid can be used in the production of fluorine-free feed; Used as a polishing agent in electroplating industry; Used as detergent in printing industry. Ethylene synthesis and hydrogen peroxide used as acidulant in the process of refining; Used as acidulant in beverage production and seasoning; Used as a desiccant in the dye industry.
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