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| CAS No.: | 7757-93-9 |
|---|---|
| Name: | CALCIUM PHOSPHATE, DIBASIC |
| Molecular Structure: | |
|
|
|
| Formula: | CaHPO4 |
| Molecular Weight: | 136.06 |
| Synonyms: | A-Tab;Anhydrous Emcompress;Biofos;Calcium acid phosphate;Calcium dibasicphosphate;Calcium hydrogen orthophosphate;Calcium hydrogen phosphate;Calciumhydrogen phosphate (CaHPO4);Calcium monohydrogen orthophosphate;Calciummonohydrogen phosphate;Calcium phosphate(1:1);Calcium phosphate (CaHPO4);Calcium phosphate dibasic;D.C.P. 340;DCP;DCPA;Dibasic calcium phosphate;Dicafos A;DicafosAN;Dicalcium orthophosphate;Dicalcium phosphate;Fujicalin;Fujicalin S;Fujicalin SG;Heucophos CHP;Ipifosc 20;Kyowaad FM;Monocalcium phosphate;DiCalcium Phosphate Anhydrous; |
| EINECS: | 231-826-1 |
| Density: | 2.306 (16 °C) |
| Melting Point: | 370°C(decomposition) |
| Boiling Point: | 158 °C at 760 mmHg |
| Solubility: | Sparingly soluble in water, practically insoluble in cold water. |
| Appearance: | white powder |
| Hazard Symbols: |
 Xi
|
| Risk Codes: | 36/37/38 |
| Safety: | 26-36-24/25-22 |
| PSA: | 93.23000 |
| LogP: | -0.05220 |
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Chemistry
Molecule structure of Calcium phosphate, dibasic (CAS NO.7757-93-9):
IUPAC Name: Calcium hydrogen phosphate
Molecular Weight: 136.057301 g/mol
Molecular Formula: CaHO4P
Density: 2.306 (16 °C)
Boiling Point: 158 °C at 760 mmHg
Vapour Pressure: 1.41 mmHg at 25 °C
Storage Temp.: 2-8 °C
Form: gel (aged)
H-Bond Donor: 1
H-Bond Acceptor: 4
Exact Mass: 135.923836
MonoIsotopic Mass: 135.923836
Topological Polar Surface Area: 83.4
Heavy Atom Count: 6
Complexity: 46.5
Canonical SMILES: OP(=O)([O-])[O-].[Ca+2]
InChI: InChI=1S/Ca.H3O4P/c;1-5(2,3)4/h;(H3,1,2,3,4)/q+2;/p-2
InChIKey: FUFJGUQYACFECW-UHFFFAOYSA-L
EINECS: 231-826-1
Product Categories: Inorganic Chemicals; Inorganics
Uses
Calcium phosphate, dibasic (CAS NO.7757-93-9) is used as food and feed additives to livestock feed supplement of phosphorus, calcium.
Production
Phosphoric acid and soda ash reacts to get sodium dihydrogen phosphate and disodium hydrogen phosphate in the mixture, then add a little less than the theoretical amount of calcium chloride, stirring at high speed under metathesis; soda solution and then to methyl red and methylene blue mixed indicator, changes the purple to light green, get precipitated, and finally precipitation, and water washing, refined finished.
4H2PO4+3Na2CO3→2Na2HPO4+2NaH2PO4[CaCl2] →CaHPO4·2H2O
Safety Profile
Hazard Codes: 
Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-24/25-22
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36:Wear suitable protective clothing.
S24/25:Avoid contact with skin and eyes.
S22:Do not breathe dust.
WGK Germany: 3
Hazardous Substances Data: 7757-93-9(Hazardous Substances Data)
Specification
Calcium phosphate, dibasic (CAS NO.7757-93-9) is also named as A-Tab ; Anhydrous Emcompress ; Biofos ; CCRIS 1337 ; Calcium acid phosphate ; Calcium dibasic phosphate ; Calcium hydrogen orthophosphate ; Calcium hydrogen phosphate ; Calcium monohydrogen phosphate ; Calcium phosphate (1:1) ; Calcium phosphate (CaHPO4) ; Calcium phosphate, dibasic, dental grade ; Calcium secondary phosphate ; D.C.P. ; DCP ; Dicafos AN ; Dicalcium orthophosphate
Dicalcium phosphate ; Fujicalin S ; HSDB 992 ; Ipifosc 20 ; Monocalcium acid phosphate ; Monocalcium phosphate ; Monohydrogen calcium phosphate ; UNII-L11K75P92J ; secondary Calcium phosphate . Calcium phosphate, dibasic (CAS NO.7757-93-9) is white powder. It is stable and incompatible with strong oxidizing agents.