|
Name of index
|
|
FCC-V
|
E -341(ii)
|
|
Description
|
|
Granular powder or white, deliquescent crystals or granules
|
|
|
Identification
|
|
Pass test
|
Pass test
|
|
Assay
|
%
|
As Ca
15.9-17.7(Monohydrate)
16.8-18.3(Anhydrous)
|
≥95（On the dried basis)
|
|
P2O5 Content
|
%
|
--
|
55.5-61.1
|
|
CaO(105℃, 4hours)
|
|
--
|
23.0%-27.5%(anhydrous)
19.0-24.8%(monohydrate)
|
|
Fluoride
|
≤ppm
|
50
|
30(expressed as fluorine)
|
|
Loss on drying
|
|
≤1%（Monohydrate）
|
Anhydrous: not more than 14 % (105 °C, 4 hours)
Monohydrate: not more than 17.5 % (105 °C, 4 hours) |
|
Loss on ignition
（800℃±25℃，0.5h) |
|
14.0—15.5%(Anhydrous)
|
Anhydrous: not more than 17.5 % (after ignition at 800 °C ± 25 °C for 30 minutes)
Monohydrate: not more than 25.0 % (determined by drying at 105 °C for one hour, then ignite at 800 °C ± 25 °C for 30 minutes) |
|
Organic volatile impurities
|
|
--
|
--
|
|
Barium
|
|
--
|
--
|
|
Arsenic(As)
|
≤ppm
|
3
|
1
|
|
Lead(Pb)
|
≤ppm
|
2
|
1
|
|
Mercury(Hg)
|
≤ppm
|
--
|
1
|
|
Cadmium
|
≤ppm
|
--
|
1
|
|
Aluminium
|
|
--
|
Not more than 70 mg/kg (only if added to food for infants and young children)
Not more than 200 mg/kg (for all uses except food for infants and young children) |
