Skip to Page Content

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

CUSTOMERS FOR POTASSIUM HYDROGEN PHOSPHATE HAVE ALSO LOOKED AT
Potassium 2-Ethylhexanoate Potassium Oxide Potassium Chloride Potassium Acetate Potassium Wire
Potassium Nitrate Potassium Metal Potassium Oxide Pellets Potassium Sodium Alloy Potassium Sputtering Target
Potassium Oxide Nanopowder Potassium Oxide Powder Potassium Foil Silver Potassium Cyanide Potassium Pellets
Show Me MORE Forms of Potassium

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.


Have a Question? Ask a Chemical Engineer or Material Scientist
Request an MSDS or Certificate of Analysis

Recent Research & Development for Potassium

  • Design and synthesis of new potassium channel activators derived from the ring opening of diazoxide: Study of their vasodilatory effect, stimulation of elastin synthesis and inhibitory effect on insulin release. Bouider N, Fhayli W, Ghandour Z, Boyer M, Harrouche K, Florence X, Pirotte B, Lebrun P, Faury G, Khelili S. Bioorg Med Chem. 2015 Feb 27.
  • Geostatistical approach for management of soil nutrients with special emphasis on different forms of potassium considering their spatial variation in intensive cropping system of West Bengal, India. Chatterjee S, Santra P, Majumdar K, Ghosh D, Das I, Sanyal SK. Environ Monit Assess. 2015 Apr
  • Effect of glucose-insulin-potassium on hyperlactataemia in patients undergoing valvular heart surgery: A prospective, randomised controlled study. Un Roh G, Shim JK, Song JW, Kang HM, Kwak YL. Eur J Anaesthesiol. 2015 Mar 10.
  • Potassium Abnormalities in Current Clinical Practice: Frequency, Causes, Severity and Management. Eliacik E, Yildirim T, Sahin U, Kizilarslanoglu C, Tapan U, Aybal-Kutlugun A, Hascelik G, Arici M. Med Princ Pract. 2015 Mar 11.
  • Comparison of urinary sodium and potassium in children older than two with idiopathic hypercalciuria and a healthy control group in Bandar-Abbas, Iran, in 2013. Ajdadi E, Esteghamati M, Ghasemi K, Shahvari SZ. Electron Physician. 2014 Jul 1
  • Effects of extracellular potassium diffusion on electrically coupled neuron networks. Wu XX, Shuai J. Phys Rev E Stat Nonlin Soft Matter Phys. 2015 Feb
  • Ionotropic cross-linked carbo-protein micro matrix system: An approach for improvement of drug release, compaction and tabletting behavior of losartan potassium. Khandai M, Chakraborty S, Ghosh AK. Curr Drug Deliv. 2015 Mar 10.
  • Effect of Dietary Sodium and Potassium Intake on Left Ventricular Diastolic Function and Mass in Adults ≤40 Years (from the Strong Heart Study). Haring B, Wang W, Lee ET, Jhamnani S, Howard BV, Devereux RB. Am J Cardiol. 2015 Feb 12.
  • Effect of adenosine triphosphate-sensitive potassium activation on peripheral and central pain sensitization. Shen S, Cao S, Huang S, Chen J. J Surg Res. 2015 Jan 28.
  • Magnolol and honokiol regulate the calcium-activated potassium channels signaling pathway in enterotoxigenic Escherichia coli-induced diarrhea mice. Deng Y, Han X, Tang S, Xiao W, Tan Z, Zhou C, Wang M, Kang J. Eur J Pharmacol. 2015 Mar 11.
  • Extracellular sodium and potassium levels modulate cardiac conduction in mice heterozygous null for the Connexin43 gene. George SA, Sciuto KJ, Lin J, Salama ME, Keener JP, Gourdie RG, Poelzing S. Pflugers Arch. 2015 Mar 14.
  • Two-pore-domain potassium channels: regulators of many cellular functions. Budde T, Daut J, Kurtz A, Pape HC. Pflugers Arch. 2015 Mar 14.
  • Comparison of modified Chicago sky blue stain and potassium hydroxide mount for the diagnosis of dermatomycoses and onychomycoses. Liu Z, Sheng P, Yang YP, Li W, Huang WM, Wang JD, Fan YM. J Microbiol Methods. 2015 Mar 9
  • Pretreatment of wheat straw with potassium hydroxide for increasing enzymatic and microbial degradability. Liu X, Zicari SM, Liu G, Li Y, Zhang R. Bioresour Technol. 2015 Feb 17
  • [New potassium binders effective: treatment of hyperkalaemia secondary to RAAS inhibitors]. Hoorn EJ. Ned Tijdschr Geneeskd. 2015
  • Effects of different cavity-disinfectants and potassium titanyl phosphate laser on microtensile bond strength to primary dentin. Oznurhan F, Ozturk C, Ekci ES. Niger J Clin Pract. 2015 May-Jun
  • Palpitations, potassium and the pump. Weiss JN. J Physiol. 2015 Mar 15
  • Nitric oxide influences potassium currents in inner hair cells isolated from guinea-pig cochlea. Kimitsuki T. Auris Nasus Larynx. 2015 Mar 10.
  • Erratum to: The Protective Effect of Epoxyeicosatrienoic Acids on Cerebral Ischemia/Reperfusion Injury is Associated with PI3K/Akt Pathway and ATP-Sensitive Potassium Channels. Qu YY, Yuan MY, Liu Y, Zhu YL, Xiao XJ. Neurochem Res. 2015 Mar 14.
  • Soil microbial response to waste potassium silicate drilling fluid. Yao L, Anne Naeth M, Jobson A. J Environ Sci (China). 2015 Mar 1

Recent Research & Development for Phosphates

  • Phosphate fertilizer is a main source of arsenic in areas affected with chronic kidney disease of unknown etiology in Sri Lanka. Jayasumana C, Fonseka S, Fernando A, Jayalath K, Amarasinghe M, Siribaddana S, Gunatilake S, Paranagama P. Springerplus. 2015 Feb 24
  • Fabrication of gelatin-strontium substituted calcium phosphate scaffolds with unidirectional pores for bone tissue engineering. Wu YC, Lin WY, Yang CY, Lee TM. J Mater Sci Mater Med. 2015 Mar
  • Periostin Accelerates Bone Healing Mediated by Human Mesenchymal Stem Cell-Embedded Hydroxyapatite/Tricalcium Phosphate Scaffold. Heo SC, Shin WC, Lee MJ, Kim BR, Jang IH, Choi EJ, Lee JS, Kim JH. PLoS One. 2015 Mar 16
  • Phosphate limitation induces drastic physiological changes, virulence related gene expression and secondary metabolite production in strain Pseudovibrio sp. FO-BEG1. Romano S, Schulz-Vogt HN, González JM, Bondarev V. Appl Environ Microbiol. 2015 Mar 13.
  • Comment on "A model for phosphate glass topology considering the modifying ion sub-network" [J. Chem. Phys. 140, 154501 (2014)]. Sidebottom DL. J Chem Phys. 2015 Mar 14
  • Prevalence of glucose-6-phosphate dehydrogenase (G6PD) deficiency in southeast Iran: implications for malaria elimination. Tabatabaei SM, Salimi Khorashad A, Sakeni M, Raeisi A, Metanat Z. J Infect Dev Ctries. 2015 Mar 15
  • Tribocorrosion behavior of beta titanium biomedical alloys in phosphate buffer saline solution. Pina VG, Dalmau A, Devesa F, Amigó V, Muñoz AI. J Mech Behav Biomed Mater. 2015 Feb 26
  • Synthesis of chitin and chitosan stereoisomers by thermostable α-glucan phosphorylase-catalyzed enzymatic polymerization of α-d-glucosamine 1-phosphate. Kadokawa JI, Shimohigoshi R, Yamashita K, Yamamoto K. Org Biomol Chem. 2015 Mar 13.
  • Response to "Comment on 'A model for phosphate glass topology considering the modifying ion sub-network"' [J. Chem. Phys. 142, 107103 (2015)]. Hermansen C, Mauro JC, Yue Y. J Chem Phys. 2015 Mar 14
  • Toward deciphering the genome-wide transcriptional responses of rice to phosphate starvation and recovery. Secco D, Whelan J. Plant Signal Behav. 2014 Apr
  • Decreased peritoneal ovarian cancer growth in mice lacking expression of lipid phosphate phosphohydrolase 1. Nakayama J, Raines TA, Lynch KR, Slack-Davis JK. PLoS One. 2015 Mar 13
  • Biocompatibility of calcium phosphate bone cement with optimized mechanical properties. Palmer I, Nelson J, Schatton W, Dunne NJ, Buchanan FJ, Clarke SA. J Biomed Mater Res B Appl Biomater. 2015 Mar 12.
  • Effects of different cavity-disinfectants and potassium titanyl phosphate laser on microtensile bond strength to primary dentin. Oznurhan F, Ozturk C, Ekci ES. Niger J Clin Pract. 2015 May-Jun
  • A Pharmacoeconomic Analysis of Phosphate Binders Cost-Effectiveness in the RISCAVID Study. Panichi V, Rosati A, Di Giorgio A, Scatena A, Bigazzi R, Grazi G, Migliori M, Paoletti S, Manca Rizza G, Casani A, Sgambato A, Ruggeri M. Blood Purif. 2015 Mar 4
  • In Situ Imaging of Interfacial Precipitation of Phosphate on Goethite. Wang L, Putnis CV, Ruiz-Agudo E, Hövelmann J, Putnis A. Environ Sci Technol. 2015 Mar 12.
  • Crystal structure of the N-acetylmuramic acid α-1-phosphate (MurNAc-?1P) uridylytransferase MurU, a minimal sugar-nucleotidyltransferase and potential drug target enzyme in Gram-negative pathogens. Renner-Schneck M, Hinderberger I, Gisin J, Exner T, Mayer C, Stehle T. J Biol Chem. 2015 Mar 12.
  • Glyceraldehyde 3-Phosphate Dehydrogenase-Telomere Association Correlates with Redox Status in Trypanosoma cruzi. Pariona-Llanos R, Pavani RS, Reis M, Noël V, Silber AM, Armelin HA, Cano MI, Elias MC. PLoS One. 2015 Mar 16
  • Biomechanical comparisons of pull-out strengths after pedicle screw augmentation with hydroxyapatite, calcium phosphate or polymethylmethacrylate in the cadaveric spine. Yi S, Rim DC, Park SW, Murovic JA, Lim J, Park J. World Neurosurg. 2015 Mar 10.
  • Serum Klotho: Relation to Fibroblast Growth Factor-23 and Other Regulators of Phosphate Metabolism in Children with Chronic Kidney Disease. Sawires HK, Essam RM, Morgan MF, Mahmoud RA. Nephron. 2015 Mar 10.
  • Neuroprotective role of sphingosine-1-phosphate in L-BMAA treated neuroblastoma cells (SH-SY5Y). Muñoz-Sáez E, de Munck García E, Arahuetes Portero RM, Francisca V, Ortiz-López FJ, Juan C, Begoña GM. Neurosci Lett. 2015 Mar 10.