Chemistry Abbreviations Starting with N and O

Chemistry abbreviations and acronyms are common in all fields of science. This collection offers common abbreviations and acronyms beginning with the letters N and O used in chemistry and chemical engineering. Chemistry Abbreviations Starting With N n - nanon - neutronn0 - neutronn - neutron emissionN - NewtonN - NitrogenN - Normal (concentration)n - number of molesNA - Avogadro constantNA - Not ActiveNA - Nucleic AcidNa - SodiumNAA - N-AcetylasPartateNAA - Naphtalic Acetic AcidNAC - Naphthenic Acid CorrosionNAD - Nicotinamide Adenine DinucleotideNADH - Nicotinamide Adenine Dinucleotide - Hydrogen (reduced)NADP - Nicotinamide Adenine Dinucleotide PhosphateNAS - National Academy of ScienceNb - NiobiumNBC - Nuclear, Biological, ChemicalNBO - Natural Bond OrbitalNCE - New Chemical EntityNCEL - New Chemical Exposure LimitNCR - No Carbon RequiredNCW - National Chemistry WeekNd - NeodymiumNe - NeonNE - Non EquilibriumNE - Nuclear EnergyNG - Natural GasNHE - Normalized Hydrogen ElectrodeNi - NickelNIH - National Institutes of HealthNiMH - Nickel Metal HalideNIST - National Institute of Standards and Technology nm - nanometerNM - Non MetalNMR - Nuclear Magnetic ResonanceNNK - Nicotine-derived Nitrosamine KetoneNo - NobeliumNOAA - Nation al Oceanic and Atmospheric AdministrationNORM - Naturally Occurring Radioactive MaterialNOS - Nitrous OxideNOS - Nitric Oxide SynthaseNp - NeptuniumNR - Not RecordedNS - Not SignificantNU - Natural UraniumNV - Non-VolatileNVC - Non-Volatile ChemicalNVOC - Non--Volatile Organic ChemicalNW - Nuclear Weapon Chemistry Abbreviations Starting With O O - OxygenO3 - OzoneOA - Oleic AcidOAA - OxaloAcetic AcidOAc - Acetoxy functional groupOAM - Orbital Angular MomentumOB - Oligosaccharide BindingOC - Organic CarbonOD - Optical DensityOD - Oxygen DemandODC - Ornithine DeCarboxylaseOER - Oxygen Enhancement RatioOF - Oxygen FreeOFC - Oxygen Free CopperOFHC - Oxygen Free High thermal ConductivityOH - alcoholOH - hydroxideOH - hydroxyl functional groupOI - Oxygen IndexOILRIG - Oxygen Is Losing - Reduction Is GainingOM - Organic MatterON - Oxidation NumberOP - OrganophosphateOQS - Occupied Quantum StateOR - Oxidation-ReductionORNL - Oak Ridge National LaboratoryORP - Oxidation-Reduction PotentialORR - Oxidation-Reduction ReactionOs - OsmiumOSHA - Occupational Safety and Health AdministrationOSL - Optically Stimulated LuminescenceOTA - OchraToxin AOV - Organic VaporOVA - Organic Vapor AnalyserOVA - OVAlbuminOWC - Oil-Water ContactOX - OxygenOX - OxidationOXA - OXanilic AcidOXT - OXyTocinOXY - Oxygen