Molekula
Disodium dihydrogen pyrophosphate
Disodium dihydrogen pyrophosphate is a water-soluble inorganic salt used as a pH buffer, chelating agent, and stabilizer in food, pharmaceuticals, and industrial applications. It appears as a white crystalline powder. CAS: 7758-16-9, Molecular formula: Na2H2P2O7, Molecular weight: 221.94 g/mol, Storage: Ambient, Signal word: Warning. Molekula supplies Disodium dihydrogen pyrophosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Overview
Disodium dihydrogen pyrophosphate is a water-soluble inorganic salt used as a pH buffer, chelating agent, and stabilizer in food, pharmaceuticals, and industrial applications. It appears as a white crystalline powder. CAS: 7758-16-9, Molecular formula: Na2H2P2O7, Molecular weight: 221.94 g/mol, Storage: Ambient, Signal word: Warning. Molekula supplies Disodium dihydrogen pyrophosphate from research to bulk quantities with full documentation and ISO 9001:2015 traceability.
Specifications
| Property | Value |
|---|---|
| Appearance | White powder |
| Heavy metals | ≤0.0015% |
| pH | 3.7 - 4.4 |
| Loss on Drying | ≤0.5% |
| Assay | ≥95.0% |
| P2O5 | 63 - 64% |
| Insolubles | ≤0.6% |
| Cadmium (Cd) | ≤1ppm |
| Lead (Pb) | ≤2ppm |
| Mercury (Hg) | ≤1ppm |
| Arsenic (As) | ≤3ppm |
| Fluoride | ≤10ppm |
Storage & handling
| Property | Value |
|---|---|
| Storage Temperature | Ambient |
| Shelf Life | 24 months |
| Acidity | Acid |
Identification
| Property | Value |
|---|---|
| CAS Number | 7758-16-9 |
| Molecular Formula | Na2H2P2O7 |
| Molecular Weight | 221.94 |
| SMILES | OP(=O)([O-])OP(=O)(O)[O-].[Na+].[Na+] |
| REACH Code | Y113 |
| TSCA Listed | Yes |
| HTS Code | 28353950 |
| Tariff Code | 2835390000 |
Safety & GHS
-
Explosive
GHS01
Hazard statements
- H319 Causes serious eye irritation
Precautionary statements
- P305+351+338 IF IN EYES: Rinse with water for several minutes. Remove contact lenses if present and easy to do. Continue rinsing
For research and industrial use only
Documents
Certificate of Analysis (CoA) by batch
Enter a lot or batch number to retrieve the CoA for that specific batch. We can generate one from spec data if no PDF is on file.
Pricing & pack sizes
Synonyms
No alternate names recorded for this product.
Frequently asked questions
What is Disodium dihydrogen pyrophosphate used for?
It is commonly used as a water softener, pH buffer, and sequestrant in detergents and industrial cleaning formulations.
What is the chemical formula and molecular weight?
The formula is Na2H2P2O7 with a molecular weight of 221.94 g/mol.
How should Disodium dihydrogen pyrophosphate be stored?
It should be stored at ambient temperature in a dry, well-ventilated area.
What grade is available?
We offer technical grade for industrial applications.
Can Molekula supply it in bulk?
Yes, we can supply Disodium dihydrogen pyrophosphate in bulk quantities upon request.
What documentation comes with the order?
Each order includes a Certificate of Analysis and Safety Data Sheet (SDS) with the shipment.
Ready to order or need a custom pack?
Tell us the product, grade, and quantity — Molekula usually responds within one working day with pricing and lead time.