DiSodium DiHydrogen DiPhosphate

Product Name: Sodium Acid Pyrophosphate

CAS Number: 7758-16-9

Molecular Formulae: Na2H2P2O7

Synonyms: Disodium Dihydrogen Diphosphate


Physical Properties

Molar Mass: 221.94

Appearance: White odourless powder

Density: 1.1-1.3 g/cm3

Melting Point:

Solubility in Water: 11.9g/100ml at 20oC

Assay: ≥ 95.0%




Country of Origin: China

Supplier Reference Number: 8


Hazard Classification

International Maritime Organisation (IMO): Not Regulated

Road Transport (ADR): Not Regulated

Risk Phrases: Not classified

Hazard Phrases: Not classified


Impurity Profile

Water insolubles ≤ 0.5%, Arsenic (as As) ≤ 0.0001%, Total Heavy metals ≤ 0.001%,

Fluoride as (F) ≤ 0.004%, pH of 1% Aq Soln 3.5-4.5



Available Units (KG): 25 Kg