SPECIFICATION

Trisodium Phosphate Dihydrate
Empirical Formula: Na3PO4.2H2O
CAS Number: 7758-79-4
Molecular Weight: 163.9
Characteristics: White or slight yellow crystal

Test Parameter               Specifications                  Method
Identification Phosphate       Conforms                        FCC, E450
Identification Sodium           Conforms                        FCC, E450
Assay (dried basis)              95% Min                         FCC, E450
P2O5                                  57-59%                          FCC, E450
PH (1% Solution)                6.7-7.5                            FCC, E450
Heavy Metals                      ≤ 10 ppm                       FCC, E450
Cadmium (cd)                     ≤ 1 ppm                         FCC, E450
Mercury                              ≤ 1 ppm                         FCC, E450
Lead                                    ≤ 4 ppm                        FCC, E450
Arsenic                                ≤ 3 ppm                         FCC, E450
Water-Insoluble substances  0.20%                             FCC, E450
Fluoride                               ≤ 10 ppm                       FCC, E450
Loss on Drying (Na3HP2O7.2H2O) ≥12.85%          FCC, E450

Complies with FCC, E450 requirements

Packing: Packed in 25kgs or 50lbs net paper bag with PE bag inner.  
Storage and Transport: Store in a tightly sealed container in a cool, dry, well ventilated area.  Avoid exposure to heat and moisture.
Shelf life: Two years.