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Disodium hydrogen phosphate

Disodium hydrogen phosphate

CAS Number: 7558-79-4

Molecular Formula: Na2HPO4

About Disodium hydrogen phosphate

Disodium hydrogen phosphate CAS 7558-79-4 is an essential buffering agent and emulsifier primarly utilised in the food and beverage industry to maintain pH stability and improve texture in processed dairy and meat products. Sodium phosphate dibasic serves as a critical component in the API intermediates market, where i...

Synonyms

  • dibasic sodium phosphate, anhydrous
  • disodium acid phosphate
  • disodium hydrogen phosphate
  • disodium hydrogen phosphate anhydrous
  • monosodium dihydrogen phosphate
View all

Disodium hydrogen phosphate Specifications

CAS Number
7558-79-4
Molecular Formula
Na2HPO4
Molecular Weight
141.96 g/mol
IUPAC Name
disodium;hydrogen phosphate
Canonical SMILES
OP(=O)([O-])[O-].[Na+].[Na+]
InChI Key
BNIILDVGGAEEIG-UHFFFAOYSA-L
InChI
InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
melting_point
MP: loses H2O at 92.5 °C; Specific gravity: 2.066 at 15 °C /Disodium phosphate dihydrate/
solubility
greater than or equal to 100 mg/mL at 68 °F (NTP, 1992)
density
1.8 to 2.5 at 77 °F (USCG, 1999)
logP
-5.8 (calculated)
Molecular Weight
141.96 g/mol
Physical appearance
White to almost white powder to crystal

Food Additive

An emulsifier, pH buffering agent, and stabilizer used in dairy products, processed cheeses, and powdered foods to prevent coagulation and improve texture

Water Treatment Agent

A corrosion inhibitor and scale preventer used in boiler water compounds and municipal water systems

Pharmaceutical Excipient

A buffering agent and stabilizer used in drug formulations, oral rehydration solutions, and as a saline laxative

Cosmetic Ingredient

A pH adjuster and sequestering agent used in skincare, hair dyes, and oral care products to maintain formulation stability

Laboratory Reagent

A vital component for preparing biological buffers and mobile phases in chromatography and molecular biology assays

Industrial Chemical

A versatile buffering and cleaning agent utilized in textile processing, detergents, and metal cleaners.

  1. dibasic sodium phosphate, anhydrous
  2. disodium acid phosphate
  3. disodium hydrogen phosphate
  4. disodium hydrogen phosphate anhydrous
  5. monosodium dihydrogen phosphate

Disodium hydrogen phosphate FAQs

Minimum Order Quantity

25 kg (pilot) · 1 MT (commercial)

Lead Time

3 – 5 weeks ex-works

Incoterms

FOB · CIF

Packaging

20 L pails, 200 L HDPE drums, 1000 L IBC

Regional Availability

India · EU · Middle East · Southeast Asia

Documentation

SDS · COA · TDS available on request

Compliance & Quality

REACH registered*

GHS/SDS available

ISO 9001:2015 site*

RoHS compliant*

Global sourcing network

Consistent quality & reliability

End-to-end technical support

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