SPECIFICATION

Tetrasodium Pyrophosphate Anhydrous
Synonyms: Tetrasodium Diphosphate, Sodium Pyrophosphate Anhydrous
Product Number: 12466
Empirical Formula: Na4P2O7 
CAS Number: 7722-88-5 
Molecular Weight: 265.9
Characteristics: White powder. Soluble in water, insoluble in ethanol. Basic property appeared in a a aqueous solution. Anhydrous sodium pyrophosphate is liable to deliquesce by absorbing the moisture in the air.

Test Parameter             Specifications                       Method
Identification A (FCC)        Positive                                FCC
Identification B (FCC)        Positive                                FCC
Identification A (EC)           Positive                                EC
Identification B (EC)           Positive                                EC
Identification C (EC)           Positive                                EC
Assay (Na4P2O7)              95-100.5%                          FCC, EC
Arsenic                               ≤ 3 ppm                             FCC, EC
Fluoride                              ≤ 3ppm                              FCC, EC
Lead                                   ≤ 1 ppm                             EC
Insoluble Substances           ≤0.2%                                FCC, EC
Loss on Ignition                   ≤0.5%                                FCC, EC
P2O5  (as Anhydrous)         52.5-54.0%                         EC
Mercury                              ≤1 ppm                               EC
Cadmium                            ≤1 ppm                               EC
Salmonella                           Negative                              CP 2005
E. Coli                                 Negative                              CP 2005
Total Plate Count                 1000 cfu/g                           CP 2005
Yeast, Molds                       100 cfu/g                             CP 2005
Coliform                               Negative                             CP 2005

Complies with FCC, E341 requirements

Packing: Packed in 25kgs or 50lbs net paper bag with PE bag inner.  
Storage and Transport: It should be stored in a dry, ventilative and clear warehouse, kept away from moisture and hotness. Furthermore, it should be stored separately from poisonous substances.
Shelf life: Two years.