Monosodium phosphate

Name: Monosodium phosphate
Brand: Jinan Shenghe Chemical Co., Ltd.
SKU: 10935
Availability: InStock

CAS 7558-80-7H2NaO4PMW 119.96 g/mol

Monosodium phosphate (CAS 7558-80-7) — formula H2NaO4P, molecular weight 119.96 g/mol; category food and feed additives.

Specifications

CAS Number7558-80-7

Molecular FormulaH2NaO4P

Molecular Weight119.96 g/mol

Melting Point200 °C (decomposes)

CategoryFood & Feed Additives|Nutrition Enhancers|Food Processing Aids

Purchase Profile

What this product is

Monosodium phosphate is a food and feed compound with CAS registry number 7558-80-7 and molecular formula H2NaO4P (molecular weight 119.96 g/mol), belonging to the food and feed additives segment of chemical raw materials.

Identification

CAS number: 7558-80-7

Its molecular formula H2NaO4P comprises 2 H, 1 Na, 4 O, 1 P atoms.

Also known as: Monosodium phosphate · sodium dihydrogen phosphate anhydrous

Category: food and feed additives / food additives / food additives

Frequently Asked Questions

What is the CAS number of Monosodium phosphate?

The CAS registry number of Monosodium phosphate is 7558-80-7.

What is the molecular formula and molecular weight of Monosodium phosphate?

Molecular formula H2NaO4P, molecular weight 119.96 g/mol.

What other names is Monosodium phosphate known by?

It is also registered under: Monosodium phosphate, sodium dihydrogen phosphate anhydrous.

Which category does Monosodium phosphate belong to?

Category: Food & Feed Additives / Nutrition Enhancers / Food Processing Aids.

PubChem Public Data

Public-database records for Monosodium phosphate (CAS 7558-80-7), reproduced here for independent cross-checking.

Safety classification and hazard statements

GHS notification summary	89% (597 / 671)
Reported hazard statements	H319 (11%)

This chemical does not meet GHS hazard criteria for 89% (597 of 671) of all reports.

H319 (11%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]

Regulatory listings

Regulatory & Food Contact	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; SEQUESTRANT: 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 summary	89% (597 / 671)

Regulatory & Food Contact

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; SEQUESTRANT: 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 summary

89% (597 / 671)

Physical description and handling notes

Dry Powder; Other Solid; Large Crystals; CBI; Liquid; Liquid; Other Solid
A white odourless, slightly deliquescent powder, crystals or granules
Colorless or white solid; Slightly hygroscopic; [Hawley] White powder; [MSDSonline]
Colorless, monoclinic crystals
White crystalline powder
Odorless

Reported physical properties

熔点	200 °C (decomposes)
溶解度	121
密度	2360 kg/cu m

How this substance is indexed

CAS Registry Number	7558-80-7
PubChem CID	23672064
分子式	H2NaO4P
分子量	119.96 g/mol
IUPAC 名称	sodium dihydrogen phosphate
InChIKey	AJPJDKMHJJGVTQ-UHFFFAOYSA-M
UNII（FDA）	KH7I04HPUU
ChEBI 编号	CHEBI:37585

Documented uses

Used as a pH buffer (baking powders, fleet enema solutions, electroplating baths, and acid cleaners), sequestrant for foods, emulsifier, laboratory reagent, metal phosphatising reagent, and textile dyeing/printing auxiliary; Also used to treat boiler water and wastewater, remove halogen from waste gases, supplement animal feed, and acidify urine; [HSDB]
Acid and Alkali Cleaning of Metals [Category: Clean]
Electroplating [Category: Plate]
Sewer and Wastewater Treatment [Category: Industry]
Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
Farming (Feed Additives) [Category: Industry]

Names this substance appears under

7558-80-7; Monosodium phosphate; SODIUM DIHYDROGEN PHOSPHATE; Sodium acid phosphate; Sodium phosphate, monobasic; Sodium primary phosphate; Acid sodium phosphate; Monosodium monophosphate; Monobasic sodium phosphate; Monosodium dihydrogen orthophosphate; Monosodium phosphate, anhydrous; Monosodium orthophosphate; Monosorb XP-4; Primary sodium phosphate; Sodium dihydrogen phosphate, anhydrous; Sodium phosphate (Na(H2PO4))

Computed molecular descriptors

分子量	119.977
氢键供体数	2
氢键受体数	4
可旋转键数	0
精确质量	119.95883982
单同位素质量	119.95883982
拓扑极性表面积	80.6
重原子数	6
形式电荷	0
复杂度	61.9

Database abstract

Monosodium phosphate is identified by CAS 7558-80-7, molecular formula H2NaO4P and molecular weight 119.96 g/mol. UNII KH7I04HPUU; ChEBI 37585; InChIKey AJPJDKMHJJGVTQ-UHFFFAOYSA-M. 熔点: 200 °C (decomposes); 溶解度: 121; 密度: 2360 kg/cu m.

Source: PubChem / Wikidata; the batch COA governs where values differ.

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