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Potassium Hydrogen Phosphate

K2HPO4
CAS 7758-11-4


Product Product Code Request Quote
(2N) 99% Potassium Hydrogen Phosphate K-HPAT-02 Request Quote
(2N5) 99.5% Potassium Hydrogen Phosphate K-HPAT-025 Request Quote
(3N) 99.9% Potassium Hydrogen Phosphate K-HPAT-03 Request Quote
(3N5) 99.9% Potassium Hydrogen Phosphate K-HPAT-035 Request Quote
(4N) 99.99% Potassium Hydrogen Phosphate K-HPAT-04 Request Quote
(5N) 99.999% Potassium Hydrogen Phosphate K-HPAT-05 Request Quote

CHEMICAL
IDENTIFIER
Formula CAS No. PubChem SID PubChem CID MDL No. EC No IUPAC Name Beilstein
Re. No.
SMILES
Identifier
InChI
Identifier
InChI
Key
K2HPO4 7758-11-4 134989988 24450 MFCD00011383 231-834-5 dipotassium; hydrogen phosphate N/A [K+].[K+].[O-]
P([O-])(=O)O
InChI=1S/2K.H
3O4P/c;;1-5(2,
3)4/h;;(H3,1,2,
3,4)/q2*+1;/p-2
ZPWVASYFFYYZEW-UHFFFAOYSA-L

PROPERTIES Compound Formula Mol. Wt. Appearance Melting Point Boiling Point Density Exact Mass Monoisotopic Mass Charge MSDS
K2HPO4 174.18 Colorless to white crystals N/A N/A N/A 173.888659 173.888659 0 Safety Data Sheet

Phosphate IonPotassium Hydrogen Phosphate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. American Elements produces to many standard grades when applicable, including Mil Spec (military grade); ACS, Reagent and Technical Grade; Food, Agricultural and Pharmaceutical Grade; Optical Grade, USP and EP/BP (European Pharmacopoeia/British Pharmacopoeia) and follows applicable ASTM testing standards. Typical and custom packaging is available. Additional technical, research and safety (MSDS) information is available as is a Reference Calculator for converting relevant units of measurement.

Potassium (K) atomic and molecular weight, atomic number and elemental symbol Elemental PotassiumPotassium (atomic symbol: K, atomic number: 19) is a Block S, Group 1, Period 4 element with an atomic weight of 39.0983. The number of electrons in each of Potassium's shells is [2, 8, 8, 1] and its electron configuration is [Ar] 4s1. The potassium atom has a radius of 227.2 pm and a Van der Waals radius of 275 pm. Potassium was discovered and first isolated by Sir Humphrey Davy in 1807. Potassium is the seventh most abundant element on earth. It is one of the most reactive and electropositive of all metals and rapidly oxidizes. Potassium Bohr Model As with other alkali metals, potassium decomposes in water with the evolution of hydrogen; because of its reacts violently with water, it only occurs in nature in ionic salts. In its elemental form, potassium has a silvery gray metallic appearance, but its compounds (such as potassium hydroxide) are more frequently used in industrial and chemical applications. The origin of the element's name comes from the English word 'potash,' meaning pot ashes, and the Arabic word qali, which means alkali. The symbol K originates from the Latin word kalium. For more information on potassium, including properties, safety data, research, and American Elements' catalog of potassium products, visit the Potassium element page.

Phosphorus(P) atomic and molecular weight, atomic number and elemental symbolPhosphorus Bohr ModelPhosphorus (atomic symbol: P, atomic number: 15) is a Block P, Group 15, Period 3 element. The number of electrons in each of Phosphorus's shells is 2, 8, 5 and its electronic configuration is [Ne] 3s2 3p3. The phosphorus atom has a radius of 110.5.pm and its Van der Waals radius is 180.pm. Phosphorus is a highly-reactive non-metallic element (sometimes considered a metalloid) with two primary allotropes, white phosphorus and red phosphorus; its black flaky appearance is similar to graphitic carbon. Compound forms of phosphorus include phosphates and phosphides. Phosphorous was first recognized as an element by Hennig Brand in 1669; its name (phosphorus mirabilis, or "bearer of light") was inspired from the brilliant glow emitted by its distillation. For more information on phosphorus, including properties, safety data, research, and American Elements' catalog of phosphorus products, visit the Phosphorus element page.


HEALTH, SAFETY & TRANSPORTATION INFORMATION
Material Safety Data Sheet MSDS
Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Precautions N/A
RTECS Number N/A
Transport Information N/A
WGK Germany 3
Globally Harmonized System of
Classification and Labelling (GHS)
N/A        

POTASSIUM HYDROGEN PHOSPHATE SYNONYMS
Di-potassium monohydrogen phosphate; Potassium phosphate dibasic; Dipotassium hydrogen phosphate; Dipotassium hydrogenphosphate; Potassium hydrogen phosphate (2:1:1); Potassium phosphate, dibasic, Potassium dibasic phosphate, sec.-Potassium phosphate, Dipotassium monophosphate, Dipotassium orthophosphate, Potassium monohydrogen phosphate, Potassium monophosphate, Dipotassium-O-phosphate

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PACKAGING SPECIFICATIONS FOR BULK & RESEARCH QUANTITIES
Typical bulk packaging includes palletized plastic 5 gallon/25 kg. pails, fiber and steel drums to 1 ton super sacks in full container (FCL) or truck load (T/L) quantities. Research and sample quantities and hygroscopic, oxidizing or other air sensitive materials may be packaged under argon or vacuum. Shipping documentation includes a Certificate of Analysis and Material Safety Data Sheet (MSDS). Solutions are packaged in polypropylene, plastic or glass jars up to palletized 440 gallon liquid totes.


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Recent Research & Development for Potassium

  • Laboratory Studies of Potassium-Halide-Induced High-Temperature Corrosion of Superheater Steels. Part 1: Exposures in Dry Air. Hao Wu, Patrik Yrjas, and Mikko Hupa. Energy Fuels: January 23, 2015
  • Iso-Selective Ring-Opening Polymerization of rac-Lactide Catalyzed by Crown Ether Complexes of Sodium and Potassium Naphthalenolates. Jiao Xiong, Jinjin Zhang, Yangyang Sun, Zhongran Dai, Xiaobo Pan, and Jincai Wu. Inorg. Chem.: January 17, 2015
  • Impedance Analysis and Conduction Mechanisms of Lead Free Potassium Sodium Niobate (KNN) Single Crystals and Polycrystals: A Comparison Study. Muhammad Asif Rafiq, Maria Elisabete Costa, Alexander Tkach, and Paula Maria Vilarinho. Crystal Growth & Design: December 16, 2014
  • Measurement and Correlation of the Solubility of Penicillin V Potassium in Ethanol + Water and 1-Butyl Alcohol + Water Systems. Tingting Wei, Chen Wang, Shichao Du, Songgu Wu, Jianyu Li, and Junbo Gong. J. Chem. Eng. Data: December 15, 2014
  • Potassium-Promoted Alumina Adsorbent from K2CO3 Coagulated Alumina Sol for Warm Gas Carbon Dioxide Separation. Shuang Li, Yixiang Shi, and Ningsheng Cai. ACS Sustainable Chem. Eng.: December 8, 2014
  • Effect of Dissolution and Refaceting on Growth Rate Dispersion of Sodium Chlorate and Potassium Dihydrogen Phosphate Crystals. M. M. Mitrovi?, A. A. Žeki, B. M. Misailovi, and B. Z. Radiša. Ind. Eng. Chem. Res.: November 25, 2014
  • Energy and Exergy Analyses of an Integrated Gasification Combined Cycle Power Plant with CO2 Capture Using Hot Potassium Carbonate Solvent. Sheng Li, Hongguang Jin, Lin Gao, Kathryn Anne Mumford, Kathryn Smith, and Geoff Stevens. Environ. Sci. Technol.: November 12, 2014
  • Face-Specific Growth and Dissolution Kinetics of Potassium Dihydrogen Phosphate Crystals from Batch Crystallization Experiments. H. Eisenschmidt, A. Voigt, and K. Sundmacher. Crystal Growth & Design: November 11, 2014
  • Highly Iso-Selective and Active Catalysts of Sodium and Potassium Monophenoxides Capped by a Crown Ether for the Ring-Opening Polymerization of rac-Lactide. Jinjin Zhang, Jiao Xiong, Yangyang Sun, Ning Tang, and Jincai Wu. Macromolecules: November 4, 2014
  • Suzuki–Miyaura Cross-Coupling of Brominated 2,1-Borazaronaphthalenes with Potassium Alkenyltrifluoroborates. Gary A. Molander, Steven R. Wisniewski, and Elham Etemadi-Davan. J. Org. Chem.: October 30, 2014