DICALCIUM PHOSPHATE AYHYDRATE                                  DICALCIUM PHOSPHATE DIHYDRATE

FCC/EN/USP/GB                                                                           FCC/EN/USP/GB

Formula: CaHPO₄                                                                        Formula: CaHPO₄·2H₂O

CAS NO.: 7757-93-9                                                                     CAS NO.: 7789-77-7

Description: A white, odorless, tasteless                                 Description: A white, odorless, tasteless         

                       powder. It is stable in air.                                                             powder. It is stable in air.

USES                                                                                                 USES 

Dentifrice: As a polishing agent                                                    Pharmaceutical: In the manufacture of

Pharmaceutical: In the manufacture of                                                                       pharmaceutical tablets and

             pharmaceutical tablets                                                                                     as a source of calcium and

             and as a source of calcium                                                                             phosphorus in nutritional

             and phosphorus in nutritional                                                                        supplements

             supplements                                                                     Food: Fortification of cereals and other

Food: Fortification of cereals and other                                                processed foods

           processed foods

PACKING AND STORAGE                                                         PACKING AND STORAGE

·25kg/1000kg net paper bag with                                            ·25kg/1000kg net paper bag with

  PE bag inner.                                                                              PE bag inner.

·Store in dry, well ventilated warehouse                                ·Store in dry, well ventilated warehouse

  and keep away from direct sunlight                                       and keep away from direct sunlight

·Shelf life--- two years                                                                 ·Shelf life--- two years

SPECIFICATIONS (USP32)                                                      SPECIFICATIONS (USP32)    

Assay (as CaHPO₄)     ≥95.0%                                                Assay (as CaHPO₄)      ≥95.0%

Appearance           free-flowing powder                                    Appearance                   free-flowing powder

Color                       White                                                              Color                              White

Odor                         None                                                             COdor                            None

TPC                          ≤1,000cfu/g                                                 TPC                              ≤1,000cfu/g

Yeast/Mold               ≤50cfu/g                                                      Yeast/Mold                 ≤50cfu/g

E.coli                          None                                                            E.coli                           None

Shigella                     None                                                            Shigella                      None

S.aureus                    None                                                           S.aureus                    None

S.hemolyticus           None                                                           S.hemolyticus           None

Salmonella                None                                                          Salmonella                None

Identification              To pass the test                                        Identification             To pass the test

Loss on drying          ≤1.0%                                                         Loss on drying         ≤24.5%-26.5%

Chloride                     ≤0.05%                                                      Chloride                    ≤0.05%

Sulfate                        ≤0.2%                                                        Sulfate                        ≤0.2%

Carbonates           To pass the test                                           Carbonates               To pass the test

Barium                   To pass the test                                            Barium                       To pass the test

Limit of fluoride           ≤0.015%                                                  Limit of fluoride        ≤0.015%

Organic volatitle impurities     To pass the test                       Organic volatitle impurities  To pass the test

Residual solvents                    To pass the test                      Residual solvents                 To pass the test

Heavy metals           ≤10mg/kg                                                   Heavy metals                          ≤10mg/kg

Arsenic                     ≤0.5mg/kg                                                  Arsenic                                     ≤0.5mg/kg

Lead                        ≤0.8mg/kg                                                    Lead                                        ≤0.8mg/kg

Particle size

Big granular, granular, powder, extra-fine powder