Acros Organics Ultra Pure Inorganics

Ultra Pure InorganicsIntroductionHigh purity inorganics with ultra low metal contaminants have many important applications in today’s high technologies, rangingfrom optical fibers to solar panels. Acros Organics offer a line of ultra pure inorganics with trace metal content less than 100 ppm toas low as 1 ppm. In order to meet the increasing market demand, we have recently expanded our ultra purity inorganics offering by50%. In this brochure, you will find the overview of the five most important applications of our ultra high purity inorganics.• Catalysis• Crystal Growth Technology• Photovoltaic Materials• Optical fibers• LasersCatalysisThe use of high purity inorganics as catalysts, catalyst precursorsor reagents in organic synthesis offers the chance to reduce orremove unwanted impurities from a synthetic sequence.This in turn can reduce purification requirements and wastegenerated from a reaction. Catalysis reactions are ubiquitousin our modern world, from increasing the efficiency ofpetroleum refining, cleaning car exhaust emissions withcatalytic converters, producing cleaner, safer and moreeffective drugs or making the plastic cups from which wedrink. All of these processes depend on catalysts.Desired Catalysis requirements include:• High Activity – allows for minimal catalyst volume whilegenerating short reaction times.• High Selectivity – produces desired products at high yieldand eliminates unwanted by-products.• Long Life – resistant to poisoning of the active catalytic site/state.• Recycle/Removal Capability – ability to easily remove catalystfrom a reaction and/or reuse.By tailoring your reaction by selecting the right catalyst for thedesired reaction outcome, one can achieve these four criteria.Typical Acros Organics products used in catalysis:Example products:Product ID Compound% Purity19369 Palladium powder, particle size-20 mesh 99.9919368 Palladium (II) Oxide 99.99919371 Platinum Powder 99.99943720Hydrogen Hexachloroplatinate(IV)hydrate99.99943717 Hydrogen terachlroaurate hydrate 99.99943709 Rhodium (III) chloride 99.99Crystal Growth TechnologySince flame-fusion growth was documented in 1902 by Verneuilfor the commercial production of rubies, crystal growthtechnology has found applications in micro-electronics,communications technology, energy and space technology andmedical instrumentation. Modern techniques require the use ofhigh grade materials to prevent flaws forming in the crystals.Some common Crystal Growth Techniquesinclude:• Crucible Grown Crystals (Czochralski process)- a crystal is”pulled” out of a quartz crucible filled with melt.• Micro-pulling-down method – based on the continuoustransport of melted substance through micro-channels madein a crucible bottom.• Flame-fusion (Verneuil) Growth- involves melting finelypowdered substances and crystallizing the melted droplets.Applications of Crystal Growth Technology are:• Semi-Conductor crystals• Optical Crystals• Acousto-Optic Crystals• Scintillator Crystals• Lasers• Jewelry and watchesTypical Acros Organics products used in CGTapplications:Example products:Product ID Compound % Purity31812 Tellurium(IV) Oxide 99.999519356 Neodymium Oxide 99.99919448 Yttrium Oxide 99.9992