1.Chemical Name: Dicalcium Phosphate Dihydrate
2.Formula: CaHPO4.2H2O
3.Molecular weight: 172.09
4.Properties:White, monoclinic crystalline powder; soluble in dilute Hydrochloric, Nitric and acetic acids, slightly soluble in water , insoluble in ethanol, when heated to 75°C, it may lose crystal water, convert to Anhydrous.
5.Quality standard:
Index
GB24568-2009
1. Stability
Accord with the test
2. PH value(20% turbid liquid)
6.9~8.1
3. Loss on ignition,%
24.5~26.5
4.Acid insoluble substances%
≤0.2
5.Chlorides%
≤0.3
6.Carbonates
7.Fluorides
≤50 ppm
8.Fineness(pass 45Um mesh),%
≥99.0
9.Arsenic
≤1ppm
10.Absorptive water capacity(ml/20g)%
4.5~6.5
11.Content( As CaO)%
31.4~32.9
12.Degree of whiteness, %
≥95.0
13.P2O5,%
40.7~42.5
14.Content, %
≥98.5
15.Heavy metals(As Pb)
≤10ppm
16.60 D.C. Water Loss, %
≤0.6
17.Titration value
57~61 ml
18.Set Test
Pass theTest
19.Relative stability of F
Pass the test
20.Fe
<30ppm
21.Sulphates as S%
<250ppm
22.Apparent density
0.7~1.0
23. Bacterial
<1000 cfu/g
24.Mould
<100 cfu/g
25.Moisture at60 °C
<1%
6.Applications:In daily chemical industry, it is used as frictional agent for making top quality tooth paste, especially foaming type tooth paste.
7.Packing:25kgs net paper or plastic woven bags
8. Storage conditions: In a dry and clear warehouse; kept away from moisture and hot.
