Project Description
Dicalcium Phosphate Dihydrate Dental Grade
Synonyms: Dibasic calcium phosphate; Dicalcium orthophosphate; DCPD
Molecular formula: CaHPO4·2H2O
Molecular weight: 172.09
CAS Number: 7789-77-7
Einecs: 231-826-1
Properties: White crystal powder, soluble in diluted Hydrochloric Acid and Nitric Acid, slightly soluble in water, and insoluble in ethanol. It may lose water and convert to Dicalcium Phosphate Anhydrous at 65℃.
Specifications:
| Item | QB/T2477-2007 |
|---|---|
| Assay | 98.5% min |
| P2O5 | 40.5%-42.0% |
| CaO | 32.0% min |
| Whiteness | 95.0% min |
| pH | 7.0-8.1 |
| Particle size (325 mesh) (200 mesh) | 99% min 99.95% min |
| Apparent density | 0.8-1.0g/ml |
| Water adsorption | 5.0-6.5ml/20g |
| Stability | Pass test |
| Fast test of stability of fluorine ion | 0.9% min |
| Loss on ignition | 25.0%-26.5% |
| Loss on drying | 0.60% max |
| Heavy metals (as Pb) | 0.002% max |
| Fluoride | 0.005% max |
| Chloride | 0.03% max |
| As | 0.0003% max |
| Fe | 0.005% max |
| Sulfate | Pass test |
| Carbonate | Pass test |
| Insoluble in HCl | 0.2% max |
| Total plate count | 100cfu/g max |
| Total molds | 500cfu/g max |
Application:
Dicalcium phosphate dihydrate has several functions in toothpaste making:
- Abrasive: It acts as a mild abrasive to help remove plaque, stains, and debris from the teeth, contributing to the mechanical cleaning action of toothpaste.
- Polishing agent: It helps to polish the tooth surface, making it smooth and enhancing the shine of the teeth.
- Tooth remineralization: Dicalcium phosphate dihydrate contains calcium and phosphate ions, which are essential for enamel remineralization. These ions can help to repair and strengthen tooth enamel, which may be weakened by acids produced by bacteria or consumed through food and drinks.
- Binder and thickening agent: It assists in holding the toothpaste ingredients together and provides a suitable consistency for convenient use as a toothpaste.
Dicalcium phosphate dihydrate in toothpaste enhances its cleaning and polishing properties, strengthens tooth enamel, and helps to maintain good oral hygiene.
Packing: In PP+PE bags of 25kgs net each, we can provide packages according to the customer’s requirement.
Storage: At a cool, dry, and well-ventilated place.
Shelf life: 24 months
