SPECIFICATION

Sodium Acid Pyrophosphate
Synonyms: Disodium Dihydrogen Pyrophosphate, Acid Sodium Pyrophosphate
Product Number: 9901
Empirical Formula: Na2H2P2O7 
CAS Number: 7758-16-9
Molecular Weight: 221.94

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 (Na2H2P2O7)         95-100.5%              FCC, EC
Arsenic                               ≤ 3 ppm                 FCC, EC
Fluoride                              ≤ 0.001%               FCC, EC
Lead                                   ≤ 2 ppm                 FCC, EC
Insoluble Substances           ≤1.0%                    FCC, EC
P2O5  (as Anhydrous)        63.0-64.5%             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, USP, EP, 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.