Potassium metaphosphate
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Potassium metaphosphate
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CAS No:
7790-53-6
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Formula:
HO3P.K
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Chemical Name:
Potassium metaphosphate
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Synonyms:
Metaphosphoric acid (HPO3),potassium salt (1:1);Potassium metaphosphate (KPO3);Metaphosphoric acid (HPO3),potassium salt;Kurrol's salt;Potassium phosphate (KPO3);Potassium polymetaphosphate;Potassium Kurrol's salt;Potassium metaphosphate;12764-57-7;151901-76-7
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CAS No:
Description
White powder.Soluble in dilute acids; slightly soluble in water.
Fine white powder or crystals or colourless glassy platelets
Potassium metaphosphate is a potassium salt of metaphosphoric acid. It has a role as a fertilizer, a buffer, a food emulsifier, a raising agent and a sequestrant. It is an inorganic phosphate and a potassium salt. It contains a trioxidophosphate(1-).
Characteristics
57.2
white Powder
2.48 g/cm3
806 °C
1 g dissolves in 100 ml of a 1 in 25 solution of sodium acetate
Not more than 7,8 (1 % suspension)
Potassium metaphosphate Use and Manufacturing
Generally, it is heated by potassium dihydrogen phosphate to 400-700°C (theoretically, it can be heated to about 200°C) and maintained for several hours for intramolecular dehydration and condensation. The degree of polymerization of the finished product depends on the heating temperature and time. In order to increase the degree of polymerization, 850% is also useful: condensation.
Used as analytical reagent, also used in the synthesis of dyes and medicines
Metaphosphoric acid (HPO3), potassium salt (1:1): ACTIVE
Food additives
Food Additives -> EMULSIFIER; HUMECTANT; SEQUESTRANT; TEXTURIZER; THICKENER;
Computed Properties
Molecular Weight:118.070
Hydrogen Bond Acceptor Count:3
Exact Mass:117.92221234
Monoisotopic Mass:117.92221234
Topological Polar Surface Area:57.2
Heavy Atom Count:5
Complexity:49.8
Covalently-Bonded Unit Count:2
Compound Is Canonicalized:No
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