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Disodium phosphate dodecahydrate

CAS 10039-32-4Na2HPO4MW 141.959

Disodium phosphate dodecahydrate (CAS No. 10039-32-4) is supplied by Jinan Shenghe Chemical Co., Ltd. with a typical purity of 按批次COA提供(不公开发布). Main applications include Inorganic Chemicals. Bulk quantities are available with COA; purity and packaging are subject to batch COA and order confirmation.

Specifications

CAS Number10039-32-4
Molecular FormulaNa2HPO4
Molecular Weight141.959
Purity按批次COA提供(不公开发布)
Packaging按订单/批次确认(不公开发布)
ApplicationsInorganic Chemicals
CategoryInorganic Chemicals

Where it is used

Inorganic Chemicals

Packaging & Supply

Packaging按订单/批次确认(不公开发布)
Purity按批次COA提供(不公开发布)
StorageSealed, cool and dry place
Lead TimeIn stock / per order

Documents & Support

COA provided with every batch; MSDS and technical documents available on request. Email us with product name and CAS number for a quote within one business day.

Frequently Asked Questions

What is the CAS number of Disodium phosphate dodecahydrate?

The CAS number of Disodium phosphate dodecahydrate is 10039-32-4.

What purity and packaging are available?

Typical purity is 按批次COA提供(不公开发布), supplied in 按订单/批次确认(不公开发布), with COA provided.

What are the applications of Disodium phosphate dodecahydrate?

Main applications include Inorganic Chemicals.

How do I buy Disodium phosphate dodecahydrate or get a quote?

Email info@591daili.com or reach us on WhatsApp with the product name, CAS number and required quantity; quotes within one business day. Supplier: Jinan Shenghe Chemical Co., Ltd..

PubChem Public Data

Description

Disodium phosphate dodecahydrate · CAS 10039-32-4 · Na2HPO4. UNII 22ADO53M6F. Solubility: 11.8 g/100 g water at 25 °C; Density: 0.5-1.2 g/cm³; Decomposition: ~250 °C.

Identification

CAS Registry Number10039-32-4
PubChem CID24203
Molecular formulaNa2HPO4
IUPAC namedisodium;hydrogen phosphate
UNII (FDA)22ADO53M6F
FEMA number2398

Computed Descriptors

Molecular Weight141.959
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count4
Rotatable Bond Count0
Exact Mass141.94078407
Monoisotopic Mass141.94078407
Topological Polar Surface Area83.4
Heavy Atom Count7
Formal Charge0
Complexity46.5

Physical & Chemical Properties

Solubility11.8 g/100 g water at 25 °C
Density0.5-1.2 g/cm³
Decomposition~250 °C
pHpH = 9.1 for 1% aq soln at 25 °C

Physical description & handling notes

  • Sodium phosphate, dibasic appears as a colorless to white crystalline solid. Soluble in water. The primary hazard is the threat to the environment. Immediate steps should be taken to limit spread to the environment. Used as a fertilizer, in pharmaceuticals, in food processing, and for many other uses.
  • Liquid; Dry Powder; Liquid; Liquid; Other Solid; CBI; Dry Powder; Other Solid
  • Anhydrous disodium hydrogen phosphate is a white, hygroscopic, odourless powder. Hydrated forms available include the dihydrate: a white crystalline, odourless solid; the heptahydrate: white, odourless, efflorescent crystals or granular powder; and the dodecahydrate: white, efflorescent, odourless powder or crystals
  • Colorless or white hygroscopic solid; [Hawley] White powder; [MSDSonline]
  • WHITE OR COLOURLESS HYGROSCOPIC CRYSTALS OR POWDER.
  • Colorless, translucent crystals or white powder.

Regulatory Status

Regulatory & Food ContactFDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFI
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
ACIDITY_REGULATOR; EMULSIFIER; TEXTURIZER; THICKENER: Food Additives
ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFIER OR EMULSIFIER SALT, FLAVOR
Group MTDI for phosphorus from all sources, expressed as P
TRS 683-JECFA 26/25
GHS notification summary70.3% (744 / 1059)

GHS Hazard Classification

GHS notification summary70.3% (744 / 1059)
Reported hazard statementsH319 (29.7%)

This chemical does not meet GHS hazard criteria for 70.3% (744 of 1059) of all reports.

H319 (29.7%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Documented Uses

  • CIR ingredient: Disodium Phosphate
  • Used as emulsifier and buffer in foods and pharmaceuticals, metal phosphatising/electroplating reagent, scale inhibitor (boiling water treatment), textile/leather auxiliary, sequestrant, mordant in dyeing, fireproofing agent, reagent and buffer in analytical chemistry, cathartic, and veterinary laxative; Also used for weighting silk and in pottery glazes/porcelain/enamels, tanning, and soldering/brazing (instead of borax); [HSDB] Used in fertilizers, galvanoplastics, and as a dietary supplement; [Hawley]
  • Brazing [Category: Heat or Machine]
  • Electroplating [Category: Plate]
  • Soldering [Category: Heat or Machine]
  • Textiles (Fiber & Fabric Manufacturing) [Category: Industry]

Synonyms

7558-79-4; Sodium phosphate dibasic; DISODIUM PHOSPHATE; Disodium hydrogen phosphate; Disodium hydrogenorthophosphate; Acetest; Sodium phosphate, dibasic; Dibasic sodium phosphate; Disodium acid phosphate; Soda phosphate; Exsiccated sodium phosphate; disodium hydrogenphosphate; Disodium orthophosphate; Phosphoric acid, disodium salt; Sodium hydrogen phosphate; Sodium monohydrogen phosphate

Frequently Asked Questions

What are the CAS number and molecular formula of Disodium phosphate dodecahydrate?

CAS 10039-32-4; molecular formula Na2HPO4; molecular weight — g/mol.

What other names is Disodium phosphate dodecahydrate known by?

7558-79-4, Sodium phosphate dibasic, DISODIUM PHOSPHATE, Disodium hydrogen phosphate, Disodium hydrogenorthophosphate, Acetest.

What is the regulatory status of Disodium phosphate dodecahydrate?

Documented regulatory listings: FDA Substance added to food: ANTICAKING AGENT OR FREE-FLOW AGENT, ANTIMICROBIAL AGENT, DRYING AGENT, EMULSIFI; FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS; ACIDITY_REGULATOR; EMULSIFIER; TEXTURIZER; THICKENER: Food Additives.

Is Disodium phosphate dodecahydrate classified as hazardous?

70.3% of GHS notifications report no hazard classification (744 of 1059).

What are the key physical properties of Disodium phosphate dodecahydrate?

Solubility: 11.8 g/100 g water at 25 °C; Density: 0.5-1.2 g/cm³; Decomposition: ~250 °C; pH: pH = 9.1 for 1% aq soln at 25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.

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