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Potassium Phosphates

CAS 7778-77-0KH2PO4MW 136.086

Potassium Phosphates (CAS 7778-77-0) — formula KH2PO4, molecular weight 136.086; category food additives.

Specifications

CAS Number7778-77-0
Molecular FormulaKH2PO4
Molecular Weight136.086
Melting Point253 °C
CategoryAntioxidants

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What this product is

Potassium Phosphates is a food-grade compound with CAS registry number 7778-77-0 and molecular formula KH2PO4 (molecular weight 136.086), belonging to the food additives segment of chemical raw materials.

Identification

CAS number: 7778-77-0

Its molecular formula KH2PO4 comprises 1 K, 2 H, 1 P, 4 O atoms.

Also known as: Potassium Phosphates · Potassium Phosphate Monobasic

Category: food additives

Frequently Asked Questions

What is the CAS number of Potassium Phosphates?

The CAS registry number of Potassium Phosphates is 7778-77-0.

What is the molecular formula and molecular weight of Potassium Phosphates?

Molecular formula KH2PO4, molecular weight 136.086.

What other names is Potassium Phosphates known by?

It is also registered under: Potassium Phosphates, Potassium Phosphate Monobasic.

Which category does Potassium Phosphates belong to?

Category: Antioxidants.

PubChem Public Data

Public-database records for Potassium Phosphates (CAS 7778-77-0), reproduced here for independent cross-checking.

Safety classification and hazard statements

GHS notification summary90.7% (794 / 875)

This chemical does not meet GHS hazard criteria for 90.7% (794 of 875) of all reports.

Reported as not meeting GHS hazard criteria by 794 of 875 companies (only 9.3% companies provided GHS information). For more detailed information, please visit ECHA C&L website.

Regulatory listings

Regulatory & Food ContactFDA Substance added to food: MALTING OR FERMENTING AID, NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR
FDA Inventory of Food Contact Substances Listed in 21 CFR: FCS
ACIDITY_REGULATOR; SEQUESTRANT; YEAST_FOOD: Food Additives
MALTING OR FERMENTING AID, NUTRIENT SUPPLEMENT, PH CONTROL AGENT, STABILIZER OR THICKENER
Group MTDI for phosphorus from all sources, expressed as P
TRS 683-JECFA 26/25
GHS notification summary90.7% (794 / 875)

Physical description and handling notes

  • Liquid; Dry Powder; Other Solid; Large Crystals; CBI
  • Liquid; Other Solid
  • Odourless, colourless crystals or white granular or crystalline powder
  • Colorless or white solid; [Merck Index] Deliquescent; [CHEMINFO] White crystalline solid; [MSDSonline]
  • COLOURLESS CRYSTALS OR WHITE CRYSTALLINE POWDER.
  • Colorless crystals or white granular powder

Reported physical properties

熔点253 °C
密度2.34 g/cu cm
密度2.34 g/cm³
pHpH = 4.4 to 4.7

How this substance is indexed

CAS Registry Number7778-77-0
PubChem CID516951
分子式KH2PO4
IUPAC 名称potassium dihydrogen phosphate
UNII（FDA）4J9FJ0HL51

Documented uses

  • CIR ingredient: Potassium Phosphate
  • Used in buffers (determination of pH, pharmaceutical production, urinary acidifier, paper processing, baking powder, and food), nutrient solutions, yeast foods, special liquid fertilizers, sonar systems and other electronic applications; [HSDB] Used as a nutritional supplement in foods, a nonlinear optical material for laser use, and in wastewater treatment; [CHEMINFO]
  • Pulp and Paper Processing [Category: Industry]
  • Sewer and Wastewater Treatment [Category: Industry]
  • In buffers for determination of pH. Pharmaceutic aid (buffering agent).
  • Baking powder; nutrient solutions; yeast foods; buffer and sequestrant, lab reagent.

Names this substance appears under

Potassium dihydrogen phosphate; 7778-77-0; Potassium phosphate monobasic; MONOPOTASSIUM PHOSPHATE; Monobasic potassium phosphate; Potassium acid phosphate; Phosphoric acid, monopotassium salt; Potassium phosphate, monobasic; Monopotassium monophosphate; Monopotassium orthophosphate; Monopotassium dihydrogen phosphate; potassium biphosphate; Potassium dihydrogen orthophosphate; KH2PO4; Sorensen's potassium phosphate; Potassium dihydrogenorthophosphate

Computed molecular descriptors

分子量136.086
氢键供体数2
氢键受体数4
可旋转键数0
精确质量135.93277702
单同位素质量135.93277702
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

Potassium Phosphates · CAS 7778-77-0 · KH2PO4. UNII 4J9FJ0HL51. 熔点: 253 °C; 密度: 2.34 g/cu cm; 密度: 2.34 g/cm³.

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

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