Dicalcium Phosphate Dihydrate , DCPD

Chemical Name: Dicalcium Phosphate Dihydrate
Chemical Formula: CaHPO₄·2H₂O
CAS Number: 7789-77-7
Molecular Weight: 172.09 g/mol
Synonyms: Calcium Hydrogen Phosphate, CHPD, DCPD
Appearance: White monoclinic crystalline powder or granules, odorless and tasteless
Density: 2.31 g/cm³
Solubility: Sparingly soluble in water (4.303×10⁻³ g/100mL at 20°C), insoluble in ethanol; readily soluble in dilute hydrochloric acid, nitric acid, and acetic acid
pH Value: Approximately 7.5 in 20% aqueous suspension
Refractive Index: 1.5394
Properties & Applications & PackagesInquiry
Technical Data

Items

Food grade FCCIV

USP25

Dental grade

Appearance

White powder

White powder

White powde

Content, %

97.0-105.0

98.0-105.0

98.5 min.

Fluoride ,ppm

50 max.

50 max.

50 max.

Loss on ignition,%

24.5-26.5

24.5-26.5

24.5-26.5

Heavy metals,ppm

15 max.

10 max.

10 max.

As,ppm

3 max.

1 max.

3 max.

Pb,ppm

2 max.

1 max.

2max.

Fineness(pass 45Um mesh),%

Meet customer`s demand

Meet customer`s demand

99.0 min.

Acid Insolubles,%

0.2 max.

0.2max.

0.2max

Carbonate

/

Pass test

Pass test

Chloride, %

/

0.25 max.

0.03 max

Sulfides

/

0.5 max.

Pass test

Barium

/

Pass test

Pass test

Yeast/Mold,cfu/g

/

10 max.

500 max.

Aerobic plate count,cfu/g

/

10 max

100 max.

Organic volatile impurity

/

Pass test

/

PH value(20% turbid liquid)

/

/

6.8-8.1

P2O5,%

/

/

40.5-42.5

CaO,%

/

/

31.4-32.9

Titration value

/

/

57-61

whiteness, %

/

/

95 min.

Absorptive water capacity(ml/20g)%

/

/

5.0-6.5

Stability

/

/

Pass test

60 D.C. Water Loss, %

/

/

0.6 max.

Set Test

/

/

Pass Test


Main Applications
1. Pharmaceutical Industry
Serves as a critical pharmaceutical excipient:
Diluent and Filler: For tablets and capsules
Adsorbent: Improves drug processing properties
Stabilizer: Enhances formulation stability
Nutritional Supplement: Provides bioavailable calcium and phosphorus
2. Food Industry
Versatile food additive:
Leavening Agent: For flour, cakes, and baked goods
Dough Conditioner: Improves dough processing characteristics
Buffer: Regulates pH in food products
Nutritional Fortifier: Enhances calcium and phosphorus content
Emulsifier and Stabilizer: Used in ice cream powder, milk powder, etc.
3. Nutritional Supplementation
Calcium-Phosphorus Supplement: Acts as a bioavailable source of calcium and
phosphorus in dietary supplements and medical foods
Contains approximately 23.3% calcium and 18.1% phosphorus
4. Other Applications
Urinary Stone Research: DCPD is a common component of urinary tract stones
Laboratory Reagent: Used as a buffer and chemical reagent


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