Potassium Silicofluoride is a water insoluble Silicon source for use in oxygen-sensitive applications, such as metal production. In extremely low concentrations (ppm), fluoride compounds are used in health applications. Fluoride compounds also have significant uses in synthetic organic chemistry. They are commonly also used to alloy metal and for optical deposition. Certain fluoride compounds can be produced at nanoscale and in ultra high purity forms. Potassium Silicofluoride is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale (See also Nanotechnology Information and Quantum Dots) elemental powders and suspensions, as alternative high surface area 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 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.
Silicon is a Block P, Group 14, Period 3 element. The number of electrons in each of Silicon's shells is 2, 8, 4 and its electronic configuration is [Ne] 3s2 3p2. In its elemental form silicon's CAS number is 7440-21-3. The silicon atom has a radius of 117.6.pm and it's Van der Waals radius is 210.pm. Silicon is not toxic but can cause chronic respiratory problems if inhaled as a fine silica or silicate dust. Asbestos silicates are carcinogenic. Silicon is one of man's most useful elements. It makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, being exceeded only by oxygen. The Czochralski process is commonly used to produce single crystals of silicon used for solid-state or semiconductor devices. Silica, as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Silicon is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Ultra high purity silicon can be doped with boron, gallium, phosphorus , or arsenic to produce silicon for use in transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics and space-age industries. Hydrogenated amorphous silicon has shown promise in producing economical cells for converting solar energy into electricity. Silcones are important products of silicon. They range from liquids to hard, glasslike solids with many useful properties. Silicon was first discovered by Jons Berzelius in 1823. The name Silicon originates from the Latin word "silex" which means flint or hard stone. See Silicon 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.
Aluminum potassium sulfate and tannic Acid injection for hemorrhoids.
Lim SW.
J Korean Soc Coloproctol. 2012 Apr;28(2):73-7. Epub 2012 Apr 30.
PMID:
22606645
[PubMed - in process]
Suppression of Ribosomal Function Triggers Innate Immune Signaling through Activation of the NLRP3 Inflammasome.
Vyleta ML, Wong J, Magun BE.
PLoS One. 2012;7(5):e36044. Epub 2012 May 14.
PMID:
22606244
[PubMed - as supplied by publisher]
Stroke preceding autoimmune encephalitis with neuronal potassium channel antibody.
Simal P, Garcia-García AM, Serna-Candel C, Egido JA.
BMJ Case Rep. 2012 May 8;2012. pii: bcr0820114637. doi: 10.1136/bcr.08.2011.4637.
PMID:
22605845
[PubMed - in process]
Life-threatening hyperkalemia - an overlooked acute kidney injury with a serum creatinine rise in the 'normal' range.
Latus J, Braun N, Alscher MD, Kimmel M.
BMJ Case Rep. 2012 May 8;2012. pii: bcr0120125691. doi: 10.1136/bcr.01.2012.5691.
PMID:
22605836
[PubMed - in process]
Ethylene glycol ingestion masked by concomitant ethanol intoxication.
Head JM.
BMJ Case Rep. 2012 Mar 20;2012. pii: bcr1220115326. doi: 10.1136/bcr.12.2011.5326.
PMID:
22605713
[PubMed - in process]
Neuroanatomy of melanocortin-4 receptor pathway in the lateral hypothalamic area.
Cui H, Sohn JW, Gautron L, Funahashi H, Williams KW, Elmquist JK, Lutter M.
J Comp Neurol. 2012 May 17. doi: 10.1002/cne.23145. [Epub ahead of print]
PMID:
22605619
[PubMed - as supplied by publisher]
Microvascular responses to aldosterone in hamster cheek pouch microcirculation.
Lapi D, Emdin M, Mastantuono T, Sapio D, Santillo M, Colantuoni A.
Clin Hemorheol Microcirc. 2012 May 16. [Epub ahead of print]
PMID:
22596229
[PubMed - as supplied by publisher]
Prevalence and Factors Associated with Hyperkalemia in Predialysis Patients Followed in a Low-Clearance Clinic.
Sarafidis PA, Blacklock R, Wood E, Rumjon A, Simmonds S, Fletcher-Rogers J, Ariyanayagam R, Al-Yassin A, Sharpe C, Vinen K.
Clin J Am Soc Nephrol. 2012 May 17. [Epub ahead of print]
PMID:
22595825
[PubMed - as supplied by publisher]
Chemical punch packed in venoms makes centipedes excellent predators.
Yang S, Liu Z, Xiao Y, Li Y, Rong M, Liang S, Zhang Z, Yu H, King GF, Lai R.
Mol Cell Proteomics. 2012 May 17. [Epub ahead of print]
PMID:
22595790
[PubMed - as supplied by publisher]
21 Days head-down bed rest induces weakening of cell-mediated immunity - Some spaceflight findings confirmed in a ground-based analog.
Kelsen J, Bartels LE, Dige A, Hvas CL, Frings-Meuthen P, Boehme G, Thomsen MK, Fenger-Grøn M, Dahlerup JF.
Cytokine. 2012 May 15. [Epub ahead of print]
PMID:
22595648
[PubMed - as supplied by publisher]
Efficient production of ultrapure manganese oxides via electrodeposition.
Cheney MA, Joo SW, Banerjee A, Min BK.
J Colloid Interface Sci. 2012 Apr 25. [Epub ahead of print]
PMID:
22595552
[PubMed - as supplied by publisher]
Radiolytic formation of non-toxic Cr(III) from toxic Cr(VI) in formate containing aqueous solutions: A system for water treatment.
Djouider F.
J Hazard Mater. 2012 May 3. [Epub ahead of print]
PMID:
22595544
[PubMed - as supplied by publisher]
Comparative effect of angiotensin II type I receptor blockers and calcium channel blockers on laboratory parameters in hypertensive patients with type 2 diabetes.
Nishida Y, Takahashi Y, Nakayama T, Asai S.
Cardiovasc Diabetol. 2012 May 17;11(1):53. [Epub ahead of print]
PMID:
22594344
[PubMed - as supplied by publisher]
Functional significance of M-type potassium channels in nociceptive cutaneous sensory endings.
Passmore GM, Reilly JM, Thakur M, Keasberry VN, Marsh SJ, Dickenson AH, Brown DA.
Front Mol Neurosci. 2012;5:63. Epub 2012 May 14.
PMID:
22593734
[PubMed - in process]
Growth, root formation, and nutrient value of triticale plants fertilized with biosolids.
Rauw WM, Teglas MB, Chandra S, Forister ML.
ScientificWorldJournal. 2012;2012:467052. Epub 2012 Apr 19.
PMID:
22593686
[PubMed - in process]
Electrochemistry/mass spectrometry as a tool in the investigation of the potent skin sensitizer p-phenylenediamine and its reactivity toward nucleophiles.
Jahn S, Faber H, Zazzeroni R, Karst U.
Rapid Commun Mass Spectrom. 2012 Jun 30;26(12):1453-64. doi: 10.1002/rcm.6249.
PMID:
22592989
[PubMed - in process]
One-step sonochemical synthesis of a graphene oxide-manganese oxide nanocomposite for catalytic glycolysis of poly(ethylene terephthalate).
Park G, Bartolome L, Lee KG, Lee SJ, Kim DH, Park TJ.
Nanoscale. 2012 May 16. [Epub ahead of print]
PMID:
22592889
[PubMed - as supplied by publisher]
Interventions for non-oliguric hyperkalaemia in preterm neonates.
Vemgal P, Ohlsson A.
Cochrane Database Syst Rev. 2012 May 16;5:CD005257.
PMID:
22592703
[PubMed - in process]
Ultrasound assisted free radical polymerization of glycidyl methacrylate by a new disite phase-transfer catalyst system: A kinetic study.
Sankar K, Rajendran V.
Ultrason Sonochem. 2012 Feb 22. [Epub ahead of print]
PMID:
22592149
[PubMed - as supplied by publisher]
Comparison of the Effects of Sevoflurane, Isoflurane, and Desflurane on Microcirculation in Coronary Artery Bypass Graft Surgery.
Ozarslan NG, Ayhan B, Kanbak M, Celebiog?lu B, Demircin M, Ince C, Aypar U.
J Cardiothorac Vasc Anesth. 2012 May 14. [Epub ahead of print]
PMID:
22592139
[PubMed - as supplied by publisher]
Recent Research & Development for Silicon
Desymmetrization of 7-dimethylphenylsilylcycloheptatriene. Towards the synthesis of new aminocycloheptitols.
Girard E, Desvergnes V, Tarnus C, Landais Y.
Org Biomol Chem. 2010 Oct 13. [Epub ahead of print]PMID: 20941452 [PubMed - as supplied by publisher]Related citations
Enzyme-functionalized polymer brush films on the inner wall of silicon-glass microreactors with tunable biocatalytic activity.
Costantini F, Benetti EM, Reinhoudt DN, Huskens J, Vancso GJ, Verboom W.
Lab Chip. 2010 Oct 13. [Epub ahead of print]PMID: 20941436 [PubMed - as supplied by publisher]Related citations
Wavelength-tunable excited-state absorption and optical limiting effects in the Q band region based on silicon phthalocyanine oligomers.
Ishii K, Sakai N.
Phys Chem Chem Phys. 2010 Oct 13. [Epub ahead of print]PMID: 20941425 [PubMed - as supplied by publisher]Related citations
Role of near-field enhancement in plasmonic laser nanoablation using gold nanorods on a silicon substrate.
Harrison RK, Ben-Yakar A.
Opt Express. 2010 Oct 11;18(21):22556-71. doi: 10.1364/OE.18.022556.PMID: 20941153 [PubMed - in process]Related citations
Ultrafast all-optical modulator with femtojoule absorbed switching energy in silicon-on-insulator.
Schönenberger S, Stöferle T, Moll N, Mahrt RF, Dahlem MS, Wahlbrink T, Bolten J, Mollenhauer T, Kurz H, Offrein BJ.
Opt Express. 2010 Oct 11;18(21):22485-96. doi: 10.1364/OE.18.022485.PMID: 20941147 [PubMed - in process]Related citations
The observation of super-long range surface plasmon polaritons modes and its application as sensory devices.
Zhang XL, Song JF, Lo GQ, Kwong DL.
Opt Express. 2010 Oct 11;18(21):22462-70. doi: 10.1364/OE.18.022462.PMID: 20941145 [PubMed - in process]Related citations
Silicon photonic temperature sensor?employing a ring resonator manufactured?using a standard CMOS process.
Kim GD, Lee HS, Park CH, Lee SS, Lim BT, Bae HK, Lee WG.
Opt Express. 2010 Oct 11;18(21):22215-21. doi: 10.1364/OE.18.022215.PMID: 20941123 [PubMed - in process]Related citations
Highly efficient nonlinearity reduction in silicon-on-insulator waveguides using vertical slots.
Yue Y, Zhang L, Wang J, Beausoleil RG, Willner AE.
Opt Express. 2010 Oct 11;18(21):22061-6. doi: 10.1364/OE.18.022061.PMID: 20941107 [PubMed - in process]Related citations
Quantitative evaluation of boron-induced disorder in multilayers containing silicon nanocrystals in an oxide matrix designed for photovoltaic applications.
Zatryb G, Podhorodecki A, Hao XJ, Misiewicz J, Shen YS, Green MA.
Opt Express. 2010 Oct 11;18(21):22004-9. doi: 10.1364/OE.18.022004.PMID: 20941101 [PubMed - in process]Related citations
Discrete parametric band conversion in silicon for mid-infrared applications.
Tien EK, Huang Y, Gao S, Song Q, Qian F, Kalyoncu SK, Boyraz O.
Opt Express. 2010 Oct 11;18(21):21981-9. doi: 10.1364/OE.18.021981.PMID: 20941099 [PubMed - in process]Related citations
Split of surface plasmon resonance of gold nanoparticles on silicon substrate: a study of dielectric functions.
Zhu S, Chen TP, Cen ZH, Goh ES, Yu SF, Liu YC, Liu Y.
Opt Express. 2010 Oct 11;18(21):21926-31. doi: 10.1364/OE.18.021926.PMID: 20941092 [PubMed - in process]Related citations
Solution-processed photodetectors from colloidal silicon nano/micro particle composite.
Tu CC, Tang L, Huang J, Voutsas A, Lin LY.
Opt Express. 2010 Oct 11;18(21):21622-7. doi: 10.1364/OE.18.021622.PMID: 20941060 [PubMed - in process]Related citations
FDTD modeling of anisotropic nonlinear optical phenomena in silicon waveguides.
Dissanayake CM, Premaratne M, Rukhlenko ID, Agrawal GP.
Opt Express. 2010 Sep 27;18(20):21427-48. doi: 10.1364/OE.18.021427.PMID: 20941040 [PubMed - in process]Related citations
Multi-channel WDM RZ-to-NRZ format conversion at 50 Gbit/s based on single silicon microring resonator.
Ding Y, Peucheret C, Pu M, Zsigri B, Seoane J, Liu L, Xu J, Ou H, Zhang X, Huang D.
Opt Express. 2010 Sep 27;18(20):21121-30. doi: 10.1364/OE.18.021121.PMID: 20941008 [PubMed - in process]Related citations
Tunable photonic crystal based on?capillary attraction and repulsion.
Chan CT, Yeh JA.
Opt Express. 2010 Sep 27;18(20):20894-9. doi: 10.1364/OE.18.020894.PMID: 20940984 [PubMed - in process]Related citations
Tailoring the dispersion behavior of silicon nanophotonic slot waveguides.
Mas S, Caraquitena J, Galán JV, Sanchis P, Martí J.
Opt Express. 2010 Sep 27;18(20):20839-44. doi: 10.1364/OE.18.020839.PMID: 20940978 [PubMed - in process]Related citations
High performance nanophotonic circuits based on partially buried horizontal slot waveguides.
Xiong C, Pernice WH, Li M, Tang HX.
Opt Express. 2010 Sep 27;18(20):20690-8. doi: 10.1364/OE.18.020690.PMID: 20940965 [PubMed - in process]Related citations
Label-free optical biosensing using a horizontal air-slot SiN(x) microdisk resonator.
Lee S, Eom SC, Chang JS, Huh C, Sung GY, Shin JH.
Opt Express. 2010 Sep 27;18(20):20638-44. doi: 10.1364/OE.18.020638.PMID: 20940958 [PubMed - in process]Related citations
Flattened dispersion in silicon slot waveguides.
Zhang L, Yue Y, Beausoleil RG, Willner AE.
Opt Express. 2010 Sep 13;18(19):20529-34. doi: 10.1364/OE.18.020529.PMID: 20940946 [PubMed - in process]Related citations
Recent Research & Development for Fluorides
Randomized controlled trial on fluoride varnish application for treatment of white spot lesion after fixed orthodontic treatment.
Du M, Cheng N, Tai B, Jiang H, Li J, Bian Z.
Clin Oral Investig. 2011 Feb 18. [Epub ahead of print]
PMID:
21331637
[PubMed - as supplied by publisher]
Site specific toxicological risk from fluoride exposure through ingestion of vegetables and cereal crops in Unnao district, Uttar Pradesh, India.
Jha SK, Nayak AK, Sharma YK.
Ecotoxicol Environ Saf. 2011 Feb 15. [Epub ahead of print]
PMID:
21329982
[PubMed - as supplied by publisher]
Measurement of Fluoride-Induced Endoplasmic Reticulum Stress Using Gaussia Luciferase.
Sharma R, Tsuchiya M, Tannous BA, Bartlett JD.
Methods Enzymol. 2011;491C:111-125.
PMID:
21329797
[PubMed - as supplied by publisher]
"The toxic effect of fluoride on MG63 osteoblast cells is also dependent on the production of nitric oxide"
Bergandi L, Aina V, Malavasi G, Morterra C, Ghigo D.
Chem Biol Interact. 2011 Feb 14. [Epub ahead of print]
PMID:
21329685
[PubMed - as supplied by publisher]
Expanding Coverage of the Metabolome for Global Metabolite Profiling.
Yanes O, Tautenhahn R, Patti GJ, Siuzdak G.
Anal Chem. 2011 Feb 17. [Epub ahead of print]
PMID:
21329365
[PubMed - as supplied by publisher]
Oral care.
Hitz Lindenmüller I, Lambrecht JT.
Curr Probl Dermatol. 2011;40:107-15. Epub 2011 Feb 10.
PMID:
21325845
[PubMed - in process]
Antibacterial Activity and Physical Properties of Conventional Glass-ionomer Cements Containing Chlorhexidine Diacetate/Cetrimide Mixtures.
Tüzüner T, Kusgöz A, Er K, Tasdemir T, Buruk K, Kemer B.
J Esthet Restor Dent. 2011 Feb;23(1):46-55. doi: 10.1111/j.1708-8240.2010.00385.x.
PMID:
21323839
[PubMed - in process]
Publisher's Note: "Kinetics following addition of sulfur fluorides to a weakly ionized plasma from 300 to 500 K: Rate constants and product determinations for ion-ion mutual neutralization and thermal electron attachment to SF(5), SF(3), and SF(2)" [J. Chem. Phys. 133, 234304 (2010)].
Shuman NS, Miller TM, Hazari N, Luzik ED, Viggiano AA.
J Chem Phys. 2011 Feb 14;134(6):069901. No abstract available.
PMID:
21322742
[PubMed - in process]
[Effect of oral rinse with Turkish gall on the clinical periodontal parameters and halitosis.]
An YB, He L, Meng HX, Liu TT, Yan FH.
Beijing Da Xue Xue Bao. 2011 Feb 18;43(1):22-25. Chinese.
PMID:
21321613
[PubMed - as supplied by publisher]
In Vivo Imaging of Mineral Deposition in Carotid Plaque Using 18F-Sodium Fluoride PET/CT: Correlation with Atherogenic Risk Factors.
Derlin T, Wisotzki C, Richter U, Apostolova I, Bannas P, Weber C, Mester J, Klutmann S.
J Nucl Med. 2011 Feb 14. [Epub ahead of print]
PMID:
21321276
[PubMed - as supplied by publisher]
Evaluation of fluoride varnish and its comparison with pumice prophylaxis using self-etching primer in orthodontic bonding--an in vivo study.
Grover S, Sidhu MS, Prabhakar M, Jena S, Soni S.
Eur J Orthod. 2011 Feb 14. [Epub ahead of print]
PMID:
21320891
[PubMed - as supplied by publisher]
Fluoride consumption and its impact on oral health.
Jiménez-Farfán MD, Hernández-Guerrero JC, Juárez-López LA, Jacinto-Alemán LF, de la Fuente-Hernández J.
Int J Environ Res Public Health. 2011 Jan;8(1):148-60. Epub 2011 Jan 19.
PMID:
21318021
[PubMed - in process]
Effects of a fluoride-containing casein phosphopeptide-amorphous calcium phosphate complex on the shear bond strength of orthodontic brackets.
Cehreli SB, Sar C, Polat-Özsoy O, Unver B, Ozsoy S.
Eur J Orthod. 2011 Feb 11. [Epub ahead of print]
PMID:
21317209
[PubMed - as supplied by publisher]
Fluoride concentration in dentine as a biomarker of fluoride intake in European roe deer (Capreolus capreolus) - An electron-microprobe study.
Richter H, Kierdorf U, Richards A, Melcher F, Kierdorf H.
Arch Oral Biol. 2011 Feb 11. [Epub ahead of print]
PMID:
21316646
[PubMed - as supplied by publisher]
Synthesis of hypoxia imaging agent 1-(5-deoxy-5-fluoro-a-d-arabinofuranosyl)-2-nitroimidazole using microfluidic technology.
Bouvet VR, Wuest M, Wiebe LI, Wuest F.
Nucl Med Biol. 2011 Feb;38(2):235-45. Epub 2010 Dec 3.
PMID:
21315279
[PubMed - in process]
Properties of Partially Purified Endopolyphosphatase of the Yeast Saccharomyces cerevisiae.
Lichko LP, Kulakovskaya TV, Kulaev IS.
Biochemistry (Mosc). 2010 Nov;75(11):1404-7.
PMID:
21314609
[PubMed - in process]
Study of interaction of ceruloplasmin with serprocidins.
Sokolov AV, Ageeva KV, Kostevich VA, Berlov MN, Runova OL, Zakharova ET, Vasilyev VB.
Biochemistry (Mosc). 2010 Nov;75(11):1361-7.
PMID:
21314603
[PubMed - in process]
Silver-Mediated Palladium-Catalyzed Direct C-H Arylation of 3-Bromoisothiazole-4-carbonitrile.
Ioannidou HA, Koutentis PA.
Org Lett. 2011 Feb 11. [Epub ahead of print]
PMID:
21314108
[PubMed - as supplied by publisher]
Impact of an oral health intervention on pre-school children <3 years of age in a rural setting in Australia.
Neumann AS, Lee KJ, Gussy MG, Waters EB, Carlin JB, Riggs E, Kilpatrick NM.
J Paediatr Child Health. 2011 Feb 11. doi: 10.1111/j.1440-1754.2010.01988.x. [Epub ahead of print]
PMID:
21309883
[PubMed - as supplied by publisher]
Prophylactic agents and bacterial adherence to titanium.
Barros RN, Gouvêa CV.
Clin Oral Implants Res. 2011 Feb 11. doi: 10.1111/j.1600-0501.2010.02099.x. [Epub ahead of print]
PMID:
21309861
[PubMed - as supplied by publisher]
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Potassium Silicofluoride is a water insoluble Silicon source for use in oxygen-sensitive applications, such as metal production. In extremely low concentrations (ppm), fluoride compounds are used in health applications. Fluoride compounds also have significant uses in synthetic organic chemistry. They are commonly also used to alloy metal and for optical deposition. Certain fluoride compounds can be produced at nanoscale and in ultra high purity forms. Potassium Silicofluoride is generally immediately available in most volumes. Ultra high purity and high purity compositions improve both optical quality and usefulness as scientific standards. Nanoscale (See also Nanotechnology Information and Quantum Dots) elemental powders and suspensions, as alternative high surface area 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 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.
Silicon is a Block P, Group 14, Period 3 element. The number of electrons in each of Silicon's shells is 2, 8, 4 and its electronic configuration is [Ne] 3s2 3p2. In its elemental form silicon's CAS number is 7440-21-3. The silicon atom has a radius of 117.6.pm and it's Van der Waals radius is 210.pm. Silicon is not toxic but can cause chronic respiratory problems if inhaled as a fine silica or silicate dust. Asbestos silicates are carcinogenic. Silicon is
one of man's most useful elements. It makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, being exceeded only by oxygen. The Czochralski process is commonly used to produce single crystals of silicon used for solid-state or semiconductor devices. Silica, as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties. Silicon is available as metal and compounds with purities from 99% to 99.9999% (ACS grade to ultra-high purity); metals in the form of foil, sputtering target, and rod, and compounds as submicron and nanopowder. Ultra high purity silicon can be doped with boron, gallium, phosphorus , or arsenic to produce silicon for use in 
transistors, solar cells, rectifiers, and other solid-state devices which are used extensively in the electronics and space-age industries. Hydrogenated amorphous silicon has shown promise in producing economical cells for converting solar energy into electricity. Silcones are important products of silicon. They range from liquids to hard, glasslike solids with many useful properties. Silicon was first discovered by Jons Berzelius in 1823. The name Silicon originates from the Latin word "silex" which means flint or hard stone. See Silicon research below.
