IUPAC Name: Calcium dihydrogen phosphate
Molecular Formula: Ca(H₂PO₄)₂
Molecular Weight: 234.0525 g/mol
EINECS: 231-837-1
Density : 2.22 (16/4 °C)
Water Solubility: Insoluble
Boiling Point: 158 °C at 760 mmHg
Vapour Pressure: 1.41 mmHg at 25 °C
Stability: Stable. Incompatible with strong acids
Appearance: White crystalline powder
Structure of Calcium dihydrogenphoshate (CAS NO.7758-23-8):
                           
Product Category of Calcium dihydrogenphoshate (CAS NO.7758-23-8): Inorganics

 Calcium dihydrogenphoshate (CAS NO.7758-23-8) is derived by the reaction of Phosphoric acid and Calcium carbonate at 200°C.

Hazard Codes: Xi
Risk Statements: 36/37/38
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
Safety Statements: 26-36/37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
WGK Germany: 2
RTECS: TB8527000

 Calcium dihydrogenphoshate , its cas register number is 7758-23-8. It also can be called Calcium superphosphate ; and Acid calcium phosphate . Calcium dihydrogenphoshate (CAS NO.7758-23-8), a major component of phosphate rock such as phosphorite,apatite, and other phosphate minerals, is too insoluble to be an efficient fertilizer. The result is hydrated to turn the calcium sulfate into the dihydrate gypsum and sold as superphosphate of lime. Alternately phosphate rock may be treated with phosphoric acid to produce a purer form of monocalcium phosphate and is sold as triple phosphate.