The following categories exist on the wiki, and may or may not be unused. Also see wanted categories.
- CopperIISulfate (0 members)
- CadmiumBattery (2 members)
- InversePermittivityUnit (1 member)
- CASRN (0 members)
- BerkeliumAtom (0 members)
- Exposure (0 members)
- StrontiumSulfite (0 members)
- CycleSeriesDataset (0 members)
- CalciumBistrifluoromethanesulfonylimide (0 members)
- PorcelainOrCeramicCasting (0 members)
- CubicDeciMetrePerMole (0 members)
- KelvinSecond (0 members)
- SoftVenting (0 members)
- VaporPressureDepressionOsmometry (0 members)
- ChemicalSymbol (0 members)
- StaircasePotentialRamp (0 members)
- MaximumBetaParticleEnergy (0 members)
- StandardAbsoluteActivityOfSolution (0 members)
- CarboxymethylCellulose (0 members)
- CopperIITriflate (0 members)
- Fraction (0 members)
- KilogramPerSquareCentiMetre (0 members)
- SodiumIonHardCarbonBattery (0 members)
- HertzPerKelvin (0 members)
- MinimumCapacity (0 members)
- Cycling (4 members)
- MegaAmperePerSquareMetre (0 members)
- Riveting (0 members)
- NeutronYieldPerAbsorption (0 members)
- NanoMeterPerMilliMeterMegaPascal (0 members)
- Dynamic Light Scattering (DLS) (0 members)
- MegaHertz (0 members)
- Feeler Gauge (0 members)
- MetricPrefixedUnit (1 member)
- MegaGramPerCubicMetre (0 members)
- Chronopotentiometry (0 members)
- DecimalData (1 member)
- MegaHertzPerKelvin (0 members)
- MagnesiumHydroxide (0 members)
- NewtonPerSquareMetre (0 members)
- Overdischarge Testing and Evaluation (0 members)
- EnvironmentalScanningElectronMicroscopy (0 members)
- MolePerCubicDeciMetre (0 members)
- BariumCarbonate (0 members)
- ForcePerLengthUnit (12 members)
- PentafluorophenylIsocyanate (0 members)
- Full cell (degassed) (0 members)
- ResidualCapacity (0 members)
- KermaRate (0 members)
- ButlerVolmerEquation (0 members)