Molekula

Sodium phosphate dibasic

SKU 90037736 CAS 7558-79-4 Available on enquiry

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ISO 9001:2015 & ISO 14001:2015 certified · Supplying laboratories and industry since 1999 · Certificate of Analysis with every batch

Sodium phosphate dibasic is a versatile inorganic compound widely used as a buffering agent, food additive, and laboratory reagent. It also serves as an emulsifier in processed cheese, a reagent for metal phosphatising and electroplating, a component of pottery glazes and enamels, and a scale inhibitor for boiler water. This product has the CAS number 7558-79-4 and requires ambient storage conditions. It carries no signal word for safety classification. Molekula supplies Sodium phosphate dibasic from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

This substance is available from Molekula on enquiry. Full specification, Safety Data Sheet and Certificate of Analysis documentation are provided with your quotation once our team confirms the grade and pack size you need.

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Overview

SKU: 90037736
CAS Number: 7558-79-4
IUPAC Name: disodium;hydrogen phosphate
EC Number: 231-448-7
Exact Mass: 141.9408
SMILES: OP(=O)([O-])[O-].[Na+].[Na+]
InChIKey: BNIILDVGGAEEIG-UHFFFAOYSA-L
InChI: InChI=1S/2Na.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2
PubChem CID: 24203

Synonyms

Acetest
Dibasic sodium phosphate
Disodium acid phosphate
Disodium hydrogen phosphate
Disodium hydrogenorthophosphate
Disodium orthophosphate
DISODIUM PHOSPHATE
Exsiccated sodium phosphate
Soda phosphate
Sodium hydrogen phosphate

Literature values

Published physical properties of the substance, not batch specifications.

Appearance: White, hygroscopic powder
Odour: None
Solubility (other solvents): Freely soluble in water. Insoluble in ethanol
Refractive Index: 1.463
pKa: pKa1 = 2.15

Source: PubChem CID 24203 (HSDB, EU Food Improvement Agents)

See all 3 other grades of CAS 7558-79-4 →

Frequently asked questions

What is sodium phosphate dibasic used for?

Sodium phosphate dibasic is commonly used as a buffering agent, a food additive, and in various laboratory applications for pH control.

What is the chemical formula and molecular weight of this product?

The chemical formula is Na2HPO4 and the molecular weight is 141.96 g/mol.

How should sodium phosphate dibasic be stored?

This product should be stored at ambient temperature.

What grade of sodium phosphate dibasic is available?

Please contact our sales team to confirm the specific grades currently in stock for CAS 7558-79-4.

Can Molekula supply this product in bulk?

Yes, Molekula can supply sodium phosphate dibasic in various quantities, from laboratory scale to bulk industrial volumes.

What documentation comes with the order?

Every order is supplied with a Certificate of Analysis (CoA) and a Safety Data Sheet (SDS).

Related products

Molekula has supplied fine chemicals and biochemicals since 1999, and its facilities are ISO 9001:2015 and ISO 14001:2015 certified. Every dispatched batch is logged with a batch number and matched to a Certificate of Analysis, and Safety Data Sheets are available in five languages.