Potassium Hydrogen Phosphate



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K-HPAT-02 (2N) 99% Potassium Hydrogen Phosphate Request
K-HPAT-025 (2N5) 99.5% Potassium Hydrogen Phosphate Request
K-HPAT-03 (3N) 99.9% Potassium Hydrogen Phosphate Request
K-HPAT-035 (3N5) 99.95% Potassium Hydrogen Phosphate Request
K-HPAT-04 (4N) 99.99% Potassium Hydrogen Phosphate Request
K-HPAT-05 (5N) 99.999% Potassium Hydrogen Phosphate Request


Potassium 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.


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

Chemical Identifiers

Formula K2HPO4
CAS 7758-11-4
Pubchem CID 24450
MDL MFCD00011383
EC No. 231-834-5
IUPAC Name dipotassium; hydrogen phosphate
Beilstein Registry No. N/A
SMILES [K+].[K+].[O-]P([O-])(=O)O
InchI Identifier InChI=1S/2K.H3O4P/c;;1-5(2,3)4/h;;(H3,1,2,3,4)/q2*+1;/p-2


Compound Formula K2HPO4
Molecular Weight 174.18
Appearance Colorless to white crystals
Melting Point N/A
Boiling Point N/A
Density N/A
Exact Mass 173.888659
Monoisotopic Mass 173.888659

Health & Safety Info  |  MSDS / SDS

Signal Word N/A
Hazard Statements N/A
Hazard Codes N/A
Risk Codes N/A
Safety Statements N/A
Transport Information N/A
Globally Harmonized System of Classification and Labelling (GHS) N/A

Packaging Specifications

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.

Related Products

PSee more Phosphorus products. Phosphorus (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.

KSee more Potassium products. Potassium (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. 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.


Recent Research & Development for Potassium

  • Emission of highly excited electronic states of potassium from cryptomelane nanorods. Stelmachowski P, Legutko P, Jakubek T, Indyka P, Sojka Z, Holmlid L, Kotarba A. Phys Chem Chem Phys. 9/30/2015
  • Potassium tert-Butoxide-Catalyzed Synthesis of Benzofuroazepines via Cyclization of 2-Alkynyl Benzyloxy Nitriles. Gai R, Back DF, Zeni G. J Org Chem. 9/30/2015
  • Crystal structure of potassium (1S)-d-lyxit-1-yl-sulfonate monohydrate. Haines AH, Hughes DL. Acta Crystallogr E Crystallogr Commun. 9/30/2015
  • An Integrated View of Potassium Homeostasis. [No authors listed] N Engl J Med. 9/30/2015
  • Mechanisms contributing to myocardial potassium channel diversity, regulation and remodeling. Yang KC, Nerbonne JM. Trends Cardiovasc Med. 9/29/2015
  • Mass spectrometry study of N-alkylbenzenesulfonamides with potential antagonist activity to potassium channels. Martins CC, Bassetto CA Jr, Santos JM, Eberlin MN, Magalhães A, Varanda W, Gonzalez ER. Amino Acids. 9/25/2015
  • Estimation of potassium and magnesium flows in animal production in Dianchi Lake basin, China. Amachika Y, Anzai H, Wang L, Oishi K, Irbis C, Li K, Kumagai H, Inamura T, Hirooka H. Anim Sci J. 9/14/2015
  • Crystal structure of potassium sodium hepta-hydrogen hexa-molybdocobaltate(III) octa-hydrate: an extra-protonated B-series Anderson-type heteropolyoxidometalate. Park KM, Joo HC, Lee U. Acta Crystallogr E Crystallogr Commun. 9/7/2015
  • Prenatal Hypoxia-Ischemia Induces Abnormalities in CA3 Microstructure, Potassium Chloride Co-Transporter 2 Expression and Inhibitory Tone. Jantzie LL, Getsy PM, Denson JL, Firl DJ, Maxwell JR, Rogers DA, Wilson CG, Robinson S. Front Cell Neurosci. 1/26/2015

Recent Research & Development for Phosphorus

  • An Analysis of Total Phosphorus Dispersion in Lake Used As a Municipal Water Supply. Lima RC, Mesquita AL, Blanco CJ, Santos ML, Secretan Y. An Acad Bras Cienc. 10/1/2015
  • Layered Black Phosphorus as a Selective Vapor Sensor. Mayorga-Martinez CC, Sofer Z, Pumera M. Angew Chem Int Ed Engl. 10/1/2015
  • Relation between Calcium, Phosphorus, Calcium-Phosphorus Index and iPTH in Chronic Kidney Disease Patients. Adhikary LP, Yadava SK, Pokharel A, Khadka D, Thakur R. J Nepal Health Res Counc. 9/28/2015
  • Quantification of phosphorus flows throughout the consumption system of Bangkok Metropolis, Thailand. Thitanuwat B, Polprasert C, Englande AJ Jr. Sci Total Environ. 9/21/2015
  • Mechanical and Electrical Anisotropy of Few-Layer Black Phosphorus. Tao J, Shen W, Wu S, Liu L, Feng Z, Wang C, Hu C, Yao P, Zhang H, Pang W, Duan X, Liu J, Zhou C, Zhang D. ACS Nano. 9/15/2015
  • Phosphorus and nitrogen physiology of two contrasting poplar genotypes when exposed to phosphorus and/or nitrogen starvation. Gan H, Jiao Y, Jia J, Wang X, Li H, Shi W, Peng C, Polle A, Luo ZB. Tree Physiol. 9/15/2015
  • Partial Nitrification and Denitrifying Phosphorus Removal in a Pilot-Scale ABR/MBR Combined Process. Wu P, Xu L, Wang J, Huang Z, Zhang J, Shen Y. Appl Biochem Biotechnol. 8/22/2015
  • Evidence of genetic tolerance to low availability of phosphorus in the soil among genotypes of Coffea canephora. Martins LD, Rodrigues WN, Machado LS, Brinate SV, Colodetti TV, Amaral JF, Tomaz MA. Genet Mol Res. 8/6/2015
  • Selective catalytic deuteration of phosphorus ligands using ruthenium nanoparticles: a new approach to gain information on ligand coordination. Bresó-Femenia E, Godard C, Claver C, Chaudret B, Castillón S. Chem Commun (Camb). 4/14/2015
  • Phosphorus flows and balances of the European Union Member States. van Dijk KC, Lesschen JP, Oenema O. Sci Total Environ. 3/15/2015

Recent Research & Development for Phosphates

  • Relationship of dietary phosphate intake with risk of end-stage renal disease and mortality in chronic kidney disease stages 3-5: The Modification of Diet in Renal Disease Study. Selamet U, Tighiouart H, Sarnak MJ, Beck G, Levey AS, Block G, Ix JH. Kidney Int. 9/28/2015
  • Phosphate rock costs, prices and resources interaction. Mew MC. Sci Total Environ. 9/28/2015
  • Amelioration of nicotinamide adenine dinucleotide phosphate-mediated stress reduces cell death after blast-induced traumatic brain injury. Lucke-Wold BP, Naser ZJ, Logsdon AF, Turner RC, Smith KE, Robson MJ, Bailes JE, Lee JM, Rosen CL, Huber JD. Transl Res. 9/26/2015
  • Efficient methods for enol phosphate synthesis using carbon-centred magnesium bases. Kerr WJ, Lindsay DM, Patel VK, Rajamanickam M. Org Biomol Chem. 9/25/2015
  • Effects of the method of apatite seed crystals addition on setting reaction of ?-tricalcium phosphate based apatite cement. Tsuru K, Ruslin, Maruta M, Matsuya S, Ishikawa K. J Mater Sci Mater Med. 9/23/2015
  • Stability of Crushed Tedizolid Phosphate Tablets for Nasogastric Tube Administration. Kennedy G, Osborn J, Flanagan S, Alsayed N, Bertolami S. Drugs R D. 9/23/2015
  • Recombinant Expression of a Functional Myo-Inositol-1-Phosphate Synthase (MIPS) in Mycobacterium smegmatis. Huang X, Hernick M. Protein J. 9/23/2015
  • Effects of Tris(1,3-dichloro-2-propyl) Phosphate on Growth, Reproduction and Gene Transcription of Daphnia magna at Environmentally Relevant Concentrations. Li H, Su G, Zou M, Yu L, Letcher RJ, Yu H, Giesy JP, Zhou B, Liu C. Environ Sci Technol. 9/17/2015
  • Phosphate and FGF-23 homeostasis after kidney transplantation. Baia LC, Heilberg IP, Navis G; NIGRAM investigators. Nat Rev Nephrol. 9/14/2015
  • Atomic-level characterization of transport cycle thermodynamics in the glycerol-3-phosphate:phosphate antiporter. Moradi M, Enkavi G, Tajkhorshid E. Nat Commun. 9/11/2015

Free Test Sample Program

We recognize many of our customers are purchasing small quantities directly online as trial samples in anticipation of placing a larger future order or multiple orders as a raw material for production. Since our primary business is the production of industrial quantities and/or highly consistent batches which can be used for commercial production and purchased repeatedly in smaller quantity, American Elements offers trial samples at no charge on the following basis. Within 6 months of purchasing materials directly online from us, you have the option to refer back to that order and advise that it is the intention of your company, institution or lab to either purchase a larger quantity, purchase the material in regular intervals or purchase more on some other basis.

We will then evaluate your future needs and assuming the quantity or number of future purchases qualify, we will fully credit your purchase price with the next order. Because of the many variables in the quantity and number of orders you may place, it is impossible to evaluate whether your future order(s) will qualify for this program prior to your placing your next order. Please know American Elements strongly desires to make this free sample program available to you and will make every effort to do so once your next order is placed.