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Food-grade phosphoric acid (additive E338 [32]) is used to acidify foods and beverages such as various colas and jams, providing a tangy or sour taste. The phosphoric acid also serves as a preservative. [33] Soft drinks containing phosphoric acid, which would include Coca-Cola, are sometimes called phosphate sodas or phosphates.
Phosphates occur widely in nature mostly as phosphate rock or fluorapatite. Large deposits exist in Russia, USA, North Africa, China, where they are obtained mostly by open cast mining. Over 85% is used in fertiliser production and only less than 7% in feed phosphate production. Two types of deposits exist; of volcanic and of sedimentary origin.
ICL serves primarily three markets: agriculture, food and engineered materials. [9] ICL produces approximately a third of the world's bromine, and is the world's sixth-largest potash producer. [10] It is a manufacturer of specialty fertilizers and specialty phosphates, flame retardants and water treatment solutions. [11]
Phosphoric acids and phosphates. Appearance. Pyrophosphoric acid. In chemistry, a phosphoric acid, in the general sense, is a phosphorus oxoacid in which each phosphorus (P) atom is in the oxidation state +5, and is bonded to four oxygen (O) atoms, one of them through a double bond, arranged as the corners of a tetrahedron.
The OCP Group (OCP S.A.) (formerly Office Chérifien des Phosphates) is a state-owned phosphate rock miner, phosphoric acid manufacturer and fertilizer producer. [2] [3] Founded in 1920, the company has grown to become the world's largest producer of phosphate and phosphate-based products and it is one of the largest phosphate, fertilizer, chemicals, and mineral industrial companies in the ...
Ammonium polyphosphate is an inorganic salt of polyphosphoric acid and ammonia containing both chains and possibly branching. Its chemical formula is H(NH 4 PO 3) n OH showing that each monomer consists of an orthophosphate radical of a phosphorus atom with three oxygens and one negative charge neutralized by an ammonium cation leaving two bonds free to polymerize.
The original acid phosphate, made by Horsford's chemical company, [3] [5] and was a mixture of calcium, magnesium and potassium phosphate salts with a small amount of phosphoric acid producing a liquid mixture with a pH of around 2 to 3, the same as freshly squeezed lime juice. Horsford used bone ash, which is mostly calcium phosphate. In the ...
The exact phosphate content of the phosphate rock mined in 2015 is not available, but in the latest five-year period for which ore grades are available, 2009-2013, the grade of US phosphate rock varied from 28.5 to 29.0 percent P 2 O 5. As of 2016, remaining reserves of phosphate rock in the United States totaled 1.1 billion metric tons. [1]