Monocalcium phosphate monohydrate
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Monocalcium phosphate monohydrate
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CAS No:
10031-30-8
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Formula:
Ca.2H3O4P.H2O
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Chemical Name:
Monocalcium phosphate monohydrate
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Synonyms:
Phosphoric acid,calcium salt,hydrate (2:1:1);Phosphoric acid,calcium salt (2:1),monohydrate;Acid calcium phosphate hydrate;Calcium superphosphate hydrate;Monocalcium phosphate monohydrate;Monocalcium orthophosphate monohydrate;Calcium tetrahydrogen diphosphate monohydrate;Calcium hydrogen phosphate (Ca(H2PO4)2) monohydrate;Calcium phosphate (Ca(H2PO4)2.H2O);Calcium phosphate (Ca(H2PO4)2) monohydrate;Calcium dihydrogen phosphate (Ca(H2PO4)2) monohydrate;Calcium bis(dihydrogen phosphate) monohydrate;Calcium dihydrogen phosphate monohydrate;Monocalcium superphosphate hydrate;Ibex MCP
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CAS No:
Description
white, large, shining, tricl plates, crystal(s) powder(s) or granules; not hygroscopic [MER06] [STR93]
Characteristics
162
-1.04510
white Powder
2.220^1^6
100°C
203°C
203°C
moderately soluble H2O; soluble dilute HCl, HNO3, acetic acid
1.41mmHg at 25°C
Oral-rat LD50: 17500 mg/kg; Oral-Mouse LD50: 15250 mg/kg
Thermal decomposition releases toxic phosphorus oxides and calcium oxide fumes
Safety Information
NONH for all modes of transport
2
36/37/38
26-36/37
TB8530000
Xi
The warehouse is low-temperature, ventilated and dry
P261-P305 + P351 + P338
H315-H319-H335
Monocalcium phosphate monohydrate Use and Manufacturing
In the bone meal method, yellow phosphorus is first melted into a liquid in a molten phosphorus tank and sent to a combustion hydration tower through a nozzle. At the same time, compressed air is used to atomize the phosphorus to oxidize and burn the phosphorus to produce phosphorus pentoxide. Circulate phosphoric acid at the temperature of 30-40℃ along the top of the tower to cool the phosphorous pentoxide gas, and at the same time react with water to synthesize phosphoric acid. The calcined and crushed bone powder is mixed with CaO:P2O5=1, and after it is matured, it is coarsely crushed, dried and crushed to obtain calcium dihydrogen phosphate. CaHPO4?2H2O+H3PO4→Ca(H2PO4)2?H2O+H2O If the cooked material is leached with water, the leaching solution is filtered, evaporated, cooled and crystallized, and dried to obtain a pure calcium dihydrogen phosphate product. The calcium hydroxide method reacts 2 mol of phosphoric acid with 1 mol of calcium hydroxide to produce calcium dihydrogen phosphate when controlling Ph3.2. Filter, evaporate, cool and crystallize, centrifuge, wash thoroughly with acetone, and air-dry to obtain the product of calcium dihydrogen phosphate. Its Ca(OH)2+2H3PO4→Ca(H2PO4)2?H2O+H2O
Calcium dihydrogen phosphate is more water-soluble than apatite. Soil is made of particles of various sizes. Silt, a constituent of soil, comprises particles of sizes between those of clay and sand. According to the international particle-size system, a silt particle size is about 2 to 50μm in diameter. It is further divided into fine silt (2 to 20μm) and coarse silt (20 to 50μm). The percentage of silt particles in a particular soil is taken into consideration while defining soil tex
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Monocalcium phosphate monohydrate
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