Potassium Sulfate is a moderately water and acid soluble Potassium source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and deposited utilizing sputtering targets and evaporation materials for uses such as solar energy materials and fuel cells. Potassium Sulfate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. We also produce Potassium Sulfate Solution.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 is a Block S, Group 1, Period 4 element. The number of electrons in each of Potassium's shells is 2, 8, 8, 1 and its electronic configuration is [Ar] 4s1. In its elemental form potassium's CAS number is 7440-09-7. The potassium atom has a radius of 227.2 .pm and it's Van der Waals radius is 275.pm. Potassium is not toxic. Potassium is the seventh most abundant element on earth. In its metallic form it is one of the most reactive and electropositive of all metals and rapidly oxidizes. As with other metals of the alkali group, the metal decomposes in water with the evolution of hydrogen. It catches fire spontaneously in water. In high purity, potassium compounds have numerous pharmacological, medical, and electronics applications. Important compounds include the hydroxide, nitrate, carbonate, chloride, bromide, iodide, and sulfate. Lower purity compounds are used in pyrotechnics for its violet color on ignition and in glass and ceramic glazes to produce this color. Potassium also used as a nutrient in plant growth. Potassium was first discovered by Sir Humphrey Davy in 1807. The origin of the element 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'. See Potassium research below.
Sulfur is a Block P, Group 16, Period 3 element. The number of electrons in each of Sulfur's shells is 2, 8, 6 and its electronic configuration is [Ne]3s2 3p4. In its elemental form sulfur's CAS number is 7704-34-9. The sulfur atom has a radius of 100pm and it's Van der Waals radius is 180pm. Sulfur is a crucial element for all life and serves as both fuels and respiratory (oxygen-replacing) materials for simple organisms. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, Epsom salts, and barite. Sulfur, when organically bonded, is a component of all proteins, as the amino acids methionine and cysteine. In organic form, Sulfur is present in the vitamins thiamine and biotin. Sulfur is also a vital part of many enzymes and also in antioxidant molecules like glutathione and thioredoxin.Sulfur is available as compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity). Sulfur has been known since ancient times but was not accepted as an element until 1777. Antoine Lavoisier helped to convince the scientific commuity that sulfus is an element and not a compound. See Sulfur research below.
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.
Kv7 Channels Can Function without Constitutive Calmodulin Tethering.
Gómez-Posada JC, Aivar P, Alberdi A, Alaimo A, Etxeberría A, Fernández-Orth J, Zamalloa T, Roura-Ferrer M, Villace P, Areso P, Casis O, Villarroel A.
PLoS One. 2011;6(9):e25508. Epub 2011 Sep 28.
PMID:
21980481
[PubMed - in process]
Hydrogen Sulfide as Endothelium-Derived Hyperpolarizing Factor Sulfhydrates Potassium Channels.
Mustafa AK, Sikka G, Gazi SK, Steppan J, Jung SM, Bhunia AK, Barodka VM, Gazi FK, Barrow RK, Wang R, Amzel LM, Berkowitz DE, Snyder SH.
Circ Res. 2011 Oct 6. [Epub ahead of print]
PMID:
21980127
[PubMed - as supplied by publisher]
Effects of pH on Potassium: New Explanations for Old Observations.
Aronson PS, Giebisch G.
J Am Soc Nephrol. 2011 Oct 6. [Epub ahead of print]
PMID:
21980112
[PubMed - as supplied by publisher]
Factors which determine the duration of follower potentials in longitudinal smooth muscle isolated from the guinea-pig stomach antrum.
Shigemasa Y, Kito Y, Hashitani H, Suzuki H.
J Smooth Muscle Res. 2011;47(3-4):89-110.
PMID:
21979408
[PubMed - in process]
Cloning and Characterization of Catalases from Rice, Oryza sativa L.
Wutipraditkul N, Boonkomrat S, Buaboocha T.
Biosci Biotechnol Biochem. 2011 Oct 7. [Epub ahead of print]
PMID:
21979082
[PubMed - as supplied by publisher]
Synthesis and preliminary evaluation of amiloride analogs as inhibitors of the urokinase-type plasminogen activator (uPA).
Matthews H, Ranson M, Tyndall JD, Kelso MJ.
Bioorg Med Chem Lett. 2011 Sep 18. [Epub ahead of print]
PMID:
21978672
[PubMed - as supplied by publisher]
Metabolic changes during a field experiment in a world-class windsurfing athlete: a trial with multivariate analyses.
Resende NM, de Magalhães Neto AM, Bachini F, de Castro LE, Bassini A, Cameron LC.
OMICS. 2011 Oct;15(10):695-704.
PMID:
21978397
[PubMed - in process]
Effects of elevated seawater pCO2 on gene expression patterns in the gills of the green crab, Carcinus maenas.
Fehsenfeld S, Kiko R, Appelhans Y, Towle DW, Zimmer M, Melzner F.
BMC Genomics. 2011 Oct 6;12(1):488. [Epub ahead of print]
PMID:
21978240
[PubMed - as supplied by publisher]
Partial ABCC8 gene deletion mutations causing diazoxide-unresponsive hyperinsulinaemic hypoglycaemia.
Flanagan S, Damhuis A, Banerjee I, Rokicki D, Jefferies C, Kapoor R, Hussain K, Ellard S.
Pediatr Diabetes. 2011 Oct 7. doi: 10.1111/j.1399-5448.2011.00821.x. [Epub ahead of print]
PMID:
21978130
[PubMed - as supplied by publisher]
Noise reduction in spectral CT: Reducing dose and breaking the trade-off between image noise and energy bin selection.
Leng S, Yu L, Wang J, Fletcher JG, Mistretta CA, McCollough CH.
Med Phys. 2011 Sep;38(9):4946.
PMID:
21978039
[PubMed - in process]
The prevalence of interdigital erythrasma in southern region of Turkey.
Inci M, Serarslan G, Ozer B, Inan MU, Evirgen O, Erkaslan Alagoz G, Duran N.
J Eur Acad Dermatol Venereol. 2011 Oct 7. doi: 10.1111/j.1468-3083.2011.04293.x. [Epub ahead of print]
PMID:
21977942
[PubMed - as supplied by publisher]
The roles of the cation transporters CHX21 and CHX23 in the development of Arabidopsis thaliana.
Evans AR, Hall D, Pritchard J, Newbury HJ.
J Exp Bot. 2011 Oct 5. [Epub ahead of print]
PMID:
21976771
[PubMed - as supplied by publisher]
Hypercalciuria Associated with High Dietary Protein Intake Is Not Due to Acid Load.
Maalouf NM, Moe OW, Adams-Huet B, Sakhaee K.
J Clin Endocrinol Metab. 2011 Oct 5. [Epub ahead of print]
PMID:
21976719
[PubMed - as supplied by publisher]
Mutation of the gastric hydrogen-potassium ATPase alpha subunit causes iron-deficiency anemia in mice.
Krieg L, Milstein O, Krebs P, Xia Y, Beutler B, Du X.
Blood. 2011 Oct 5. [Epub ahead of print]
PMID:
21976678
[PubMed - as supplied by publisher]
Ion transporting proteins of human bronchial epithelium.
Toczylowska-Maminska R, Dolowy K.
J Cell Biochem. 2011 Oct 4. doi: 10.1002/jcb.23393. [Epub ahead of print]
PMID:
21975871
[PubMed - as supplied by publisher]
The effects of cannabidiolic acid and cannabidiol on contractility of the gastrointestinal tract of Suncus murinus.
Cluny NL, Naylor RJ, Whittle BA, Javid FA.
Arch Pharm Res. 2011 Sep;34(9):1509-17. Epub 2011 Oct 6.
PMID:
21975813
[PubMed - in process]
Nerve growth factor enhances the excitability of rat sensory neurons through activation of the atypical protein kinase C isoform, PKM{zeta}
Zhang Y, Kays J, Hodgdon KE, Sacktor TC, Nicol GD.
J Neurophysiol. 2011 Oct 5. [Epub ahead of print]
PMID:
21975456
[PubMed - as supplied by publisher]
Prognostic significance of biochemical markers in African Burkitt's lymphoma.
Arthur FK, Owusu L, Yeboah FA, Rettig T, Osei-Akoto A.
Clin Transl Oncol. 2011 Oct;13(10):731-6.
PMID:
21975335
[PubMed - in process]
Formulating a new basis for the treatment against botulinum neurotoxin intoxication: 3,4-Diaminopyridine prodrug design and characterization.
Zakhari JS, Kinoyama I, Hixon MS, Di Mola A, Globisch D, Janda KD.
Bioorg Med Chem. 2011 Sep 14. [Epub ahead of print]
PMID:
21975066
[PubMed - as supplied by publisher]
Shape-tailoring and catalytic function of anisotropic gold nanostructures.
Premkumar T, Lee K, Geckeler KE.
Nanoscale Res Lett. 2011 Oct 5;6(1):547. [Epub ahead of print]
PMID:
21974964
[PubMed - as supplied by publisher]
Self-assembly of a sulphur-terminated graphene nanoribbon within a single-walled carbon nanotube.
Chuvilin A, Bichoutskaia E, Gimenez-Lopez MC, Chamberlain TW, Rance GA, Kuganathan N, Biskupek J, Kaiser U, Khlobystov AN.
Nat Mater. 2011 Aug 7. doi: 10.1038/nmat3082. [Epub ahead of print]
PMID:
21822259
[PubMed - as supplied by publisher]
Crystallization and preliminary X-ray analysis of the yeast tRNA-thiouridine modification protein 1 (Tum1p).
Qiu R, Wang F, Liu M, Yang Z, Wu T, Ji C.
Acta Crystallogr Sect F Struct Biol Cryst Commun. 2011 Aug 1;67(Pt 8):953-5. Epub 2011 Jul 27.
PMID:
21821903
[PubMed - in process]
Characterization of Bacillus thuringiensis L-isoleucine dioxygenase toward the production of useful amino acids.
Hibi M, Kawashima T, Kodera T, Smirnov SV, Sokolov PM, Sugiyama M, Shimizu S, Yokozeki K, Ogawa J.
Appl Environ Microbiol. 2011 Aug 5. [Epub ahead of print]
PMID:
21821743
[PubMed - as supplied by publisher]
Characterization of the sulfurtransferase family from Oryza sativa L.
Guretzki S, Papenbrock J.
Plant Physiol Biochem. 2011 Jul 23. [Epub ahead of print]
PMID:
21821426
[PubMed - as supplied by publisher]
Development of a small-scale bioreactor method to monitor the molecular diversity and environmental impacts of bacterial biofilm communities from an acid mine drainage impacted creek.
Cole M, Wrubel J, Henegan P, Janzen C, Holt J, Tobin T.
J Microbiol Methods. 2011 Jul 28. [Epub ahead of print]
PMID:
21821067
[PubMed - as supplied by publisher]
In situ incorporation of nickel nanoparticles into the mesopores of MCM-41 by manipulation of solvent-solute interaction and its activity toward adsorptive desulfurization of gas oil.
Samadi-Maybodi A, Teymouri M, Vahid A, Miranbeigi A.
J Hazard Mater. 2011 Jul 6. [Epub ahead of print]
PMID:
21820806
[PubMed - as supplied by publisher]
Stearoyl-CoA desaturase is an essential enzyme for the parasitic protist Trypanosoma brucei.
Alloatti A, Gupta S, Gualdrón-López M, Nguewa PA, Altabe SG, Deumer G, Wallemacq P, Michels PA, Uttaro AD.
Biochem Biophys Res Commun. 2011 Jul 28. [Epub ahead of print]
PMID:
21820408
[PubMed - as supplied by publisher]
The use of multi-element stable isotope analysis to monitor the origin of chondroitin sulfates.
Thomas F, Jamin E, Shimoo K, Nagao J, Osaki Y, Granier C.
Rapid Commun Mass Spectrom. 2011 Sep 15;25(17):2533-7. doi: 10.1002/rcm.5159.
PMID:
21818814
[PubMed - in process]
Sulphur isotopes in animal hair track distance to sea.
Zazzo A, Monahan FJ, Moloney AP, Green S, Schmidt O.
Rapid Commun Mass Spectrom. 2011 Sep 15;25(17):2371-8. doi: 10.1002/rcm.5131.
PMID:
21818798
[PubMed - in process]
Experimental and Theoretical Evidence of Aromatic Behavior in Heterobenzene-Like Molecules with Metal-Metal Multiple Bonds.
Fang W, He Q, Tan ZF, Liu CY, Lu X, Murillo CA.
Chemistry. 2011 Aug 4. doi: 10.1002/chem.201003693. [Epub ahead of print]
PMID:
21818792
[PubMed - as supplied by publisher]
Rhodovulum phaeolacus sp. nov. a phototrophic alphaproteobacterium isolated from a brown pond.
Venkata Naga Satya Lakshmi K, Sasikala C, Venkata Ramana V, Veera Venkata Ramaprasad E, Venkata Ramana C.
J Gen Appl Microbiol. 2011;57(3):145-51.
PMID:
21817826
[PubMed - in process]
Comparative data on effects of leading pretreatments and enzyme loadings and formulations on sugar yields from different switchgrass sources.
Wyman CE, Balan V, Dale BE, Elander RT, Falls M, Hames B, Holtzapple MT, Ladisch MR, Lee YY, Mosier N, Pallapolu VR, Shi J, Thomas SR, Warner RE.
Bioresour Technol. 2011 Jun 21. [Epub ahead of print]
PMID:
21816612
[PubMed - as supplied by publisher]
Target loads of atmospheric sulfur deposition for the protection and recovery of acid-sensitive streams in the Southern Blue Ridge Province.
Sullivan TJ, Cosby BJ, Jackson WA.
J Environ Manage. 2011 Aug 2. [Epub ahead of print]
PMID:
21816535
[PubMed - as supplied by publisher]
Differential effects of a post-anthesis fertilizer regimen on the wheat flour proteome determined by quantitative 2-DE.
Altenbach SB, Tanaka CK, Hurkman WJ, Whitehand LC, Vensel WH, Dupont FM.
Proteome Sci. 2011 Aug 4;9(1):46. [Epub ahead of print]
PMID:
21816081
[PubMed - as supplied by publisher]
Comparative toxicity of arsenic metabolites in human bladder cancer EJ-1 cells.
Naranmandura H, Michael CW, Xu S, Lee J, Leslie E, Weinfeld M, Le XC.
Chem Res Toxicol. 2011 Aug 4. [Epub ahead of print]
PMID:
21815631
[PubMed - as supplied by publisher]
The Effects of Different Garlic-derived Allyl Sulfides on Peroxidative Processes and Anaerobic Sulfur Metabolism in Mouse Liver.
Iciek MB, Kowalczyk-Pachel D, Kwiecien I, Dudek MB.
Phytother Res. 2011 Aug 4. doi: 10.1002/ptr.3572. [Epub ahead of print]
PMID:
21815229
[PubMed - as supplied by publisher]
A combined model of hepatic polyamine and sulfur amino acid metabolism to analyze S-adenosyl methionine availability.
Reyes-Palomares A, Montañez R, Sánchez-Jiménez F, Medina MA.
Amino Acids. 2011 Aug 4. [Epub ahead of print]
PMID:
21814788
[PubMed - as supplied by publisher]
Microbial gene functions enriched in the Deepwater Horizon deep-sea oil plume.
Lu Z, Deng Y, Van Nostrand JD, He Z, Voordeckers J, Zhou A, Lee YJ, Mason OU, Dubinsky EA, Chavarria KL, Tom LM, Fortney JL, Lamendella R, Jansson JK, D'haeseleer P, Hazen TC, Zhou J.
ISME J. 2011 Aug 4. doi: 10.1038/ismej.2011.91. [Epub ahead of print]
PMID:
21814288
[PubMed - as supplied by publisher]
1,1'-(3-Methyl-4-phenylthieno[2,3-b]thiophene-2,5-diyl)diethanone as a Building Block in Heterocyclic Synthesis. Novel Synthesis of Some Pyrazole and Pyrimidine Derivatives.
Mabkhot YN, Al-Majid AM, Barakat A, Alshahrani S, Siddiqui Y.
Molecules. 2011 Aug 3;16(8):6502-11.
PMID:
21814162
[PubMed - in process]
Towards the Growth of an Aligned Single-Layer MoS2 Film.
Kim D, Sun D, Lu W, Cheng Z, Zhu Y, Le D, Rahman TS, Bartels L.
Langmuir. 2011 Aug 3. [Epub ahead of print]
PMID:
21812475
[PubMed - as supplied by publisher]
Potassium Sulfate is a moderately water and acid soluble Potassium source for uses compatible with sulfates. Sulfate compounds are salts or esters of sulfuric acid formed by replacing one or both of the hydrogens with a metal. Most metal sulfate compounds are readily soluble in water for uses such as water treatment, unlike fluorides and oxides which tend to be insoluble. Organometallic forms are soluble in organic solutions and sometimes in both aqueous and organic solutions. Metallic ions can also be dispersed utilizing suspended or coated nanoparticles (See also application discussion at Nanotechnology Information and at Quantum Dots) and deposited utilizing sputtering targets and evaporation materials for uses such as solar energy materials and fuel cells. Potassium Sulfate is generally immediately available in most volumes. High purity, submicron and nanopowder forms may be considered. We also produce Potassium Sulfate Solution.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 is a Block S, Group 1, Period 4 element. The number of electrons in each of Potassium's shells is 2, 8, 8, 1 and its electronic configuration is [Ar] 4s1. In its elemental form potassium's CAS number is 7440-09-7. The potassium atom has a radius of 227.2 .pm and it's Van der Waals radius is 275.pm. Potassium is not toxic. Potassium is the seventh most abundant element on earth. In its metallic form it is one of the most reactive and 
electropositive of all metals and rapidly oxidizes. As with other metals of the alkali group, the metal 
decomposes in water with the evolution of hydrogen. It catches fire spontaneously in water. In high purity, potassium compounds have numerous pharmacological, medical, and electronics applications. Important compounds include the hydroxide, nitrate, carbonate, chloride, bromide, iodide, and sulfate. Lower purity compounds are used in pyrotechnics for its violet color on ignition and in glass and ceramic glazes to produce this color. Potassium also used as a nutrient in plant growth. Potassium was first discovered by Sir Humphrey Davy in 1807. The origin of the element 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'. See Potassium research below.
Sulfur is a Block P, Group 16, Period 3 element. The number of electrons in each of Sulfur's shells is 2, 8, 6 and its electronic configuration is [Ne]3s2 3p4. In its elemental form sulfur's CAS number is 7704-34-9. The sulfur atom has a radius of 100pm and it's Van der Waals radius is 180pm. Sulfur is a crucial element for all life and serves as both fuels and respiratory (oxygen-replacing) materials for simple organisms. In nature, sulfur can be found in hot springs, meteorites, volcanoes, and as galena, gypsum, Epsom salts, and barite. Sulfur, when organically bonded, is a component of all proteins, as the amino acids methionine 
and cysteine. In organic form, Sulfur is present in the vitamins thiamine and biotin. Sulfur is also a vital part of many enzymes and also in antioxidant molecules like glutathione and thioredoxin.Sulfur is available as compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity). Sulfur has been known since ancient times but was not accepted as an element until 1777. Antoine Lavoisier helped to convince the scientific commuity that sulfus is an element and not a compound. See Sulfur research below.
