Sodium Pyrophosphate(SPP)-Industrial Grade

CAS No.: 7722-88-5

Molecular Formula: Na₄P₂O₇ Molecular Weight: 265.9

Structural Formula:

Property :

SPP is white powder and easily soluble in water with the relative density of 2.45. The melting point of SPP is 890℃. The water solution of SPP is alkaline. PH value of 1% SPP water solution is 9.9-10.7.

Specification :

Item	Index
Main Content, %≥	96.5
P₂O₅, %≥	51.5
Phosphate	Qualified
pH of 1% SPP Water Solution	9.9-10.7
Sieve Test(through 60mesh) , %≥	90
Heavy Metal, as Pb %≤	--
Arsenic, as As, %≤	--
Fluoride, as F, %≤	--
Water Insoluble , %≤	0.2

Use:

SPP is mainly used as detergent in washing, bleach in paper-making. SPP could also be used in electroplating.

Packing and storage:

SPP is packed in plastic-woven sack with PE inner bag with net weight of 25kg, 50kg or 1000kg. SPP is stored in ventilated and dry place.

Keywords:

Sodium Pyrophosphate; Tetrasodium Pyrophosphate; Diphosphoric Acid Tetrasodium Salt; Pyrophosphoric Acid Tetrasodium Salt; Sodium Diphosphate; SPP