Name of index

FCC-V

E 341(i)

Content, %

(As Ca)

15.9-17.7 (Monohydrate)

16.8-18.3 (Anhydrous)

Assay (On the dried basis), ≥95%

P₂O₅   Content ,%

_--

55.5—61.1 (Anhydrous   basis)

Description

_--

Granular powder or   white,

deliquescent crystals or granules

Identification

_--

Pass tests for calcium and phosphate

CaO content ,%

_--

23.0-27.5 (anhydrous)

19.0—24.8 (monohydrate)

As, ≤mg/kg

3

1

F, ≤mg/kg

50

30

Lead, ≤mg/kg

2

1

Cadmium, ≤mg/kg

_--

1

Mercury, ≤mg/kg

_--

1

Aluminium, ≤mg/kg

_--

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)

Loss on drying, ≤%

1(Monohydrate)

60°C for 3 h

Monohydrate: 105°C,4 hours,≤17.5%

Anhydrous:105°C,4hours,≤14%

Loss on ignition

14.0—15.5(Anhydrous)

800°C for30 min.

Monohydrate:105°C,1hour   then ignite at 800°C±25°C for 30minutes,≤25.0%

Anhydrous: ignite at 800°C±25°C for   30minutes,≤17.5%