| Eiddo Cemegol |
| Cemegol | Gwrthsefyll | Cemegol | Gwrthsefyll |
| Asid hydroclorig wedi'i gyfyngu | Δ | Asetad Methyl | X |
| Asid HudroehlDric (10%) | 〇 | Aetetad Ethyl | X |
| Asid sylffwrig wedi'i gyfyngu | X | Asetad priddil | X |
| Asid sylffwrig (30%) | 〇 | Asetad Butyl | X |
| Asid nitrig wedi'i ganolbwyntio | X | Ffthalate Dibutyl | 〇 |
| Asid asetig (30%) | 〇 | Asthat Dioctyl | 〇 |
| Asid asetig rhewlifol | X | Methacrylate Echyl | X |
| Asid asetig (10%) | 〇 | Methacrylate Methyl | X |
| Asid fforig | X | Bensen | X |
| Phenol | X | Tolwen | X |
| Hydro hydroide sylwedd (50%) | 〇 | Diiethyl bensen | X |
| Aqua aMonia (10%) | 〇 | Hexane | Δ |
| Ethane | 〇 | Clorofora | X |
| Heptane | 〇 | Carbon | Δ |
| Hydref | 〇 | Clorobenzen tetrachlorid | X |
| Medica alkane | 〇 | Gasoline | 〇 |
| Methanol | Δ | Kerosene | 〇 |
| Ethanol | Δ | Tywelyn | 〇 |
| Isopropanol | Δ | Toddydd Waphtha | 〇 |
| Butanol | Δ | Urfuran | X |
| Alcohlo wedi'i ddynodi | Δ | Furfural | X |
| Bensen asid carbonig | X | Alcohol ffurfwril | X |
| Fformaldehyd (40%) | 〇 | Tetraydrofuran | X |
| Acetaldeyle | X | Witrosethane | X |
| Benzaldehyde | Δ | Nitroethane | X |
| Ether methyl | Δ | Nitrobenzen | X |
| Ether | Δ | Acetonitrile | X |
| Isopropyl | Δ | Acrylonitrle | X |
| Propylene ocsid | X | Diethyl anine | 〇 |
| Dioxane | X | Dimethyl formanide | X |
| Toddydd ffibr | Δ | Aniline | X |
| Acetone | X | Dŵr halen (10%) | 〇 |
| Butanone | X | dŵr môr | 〇 |
| Methylisobutylketeone | X | Dŵr sebon (1%) | 〇 |
| Cyelohexanone | X | Hydrogen Deocsid (10%) | 〇 |
| EthyI foraate | X | | |
| NODYN: O: Ddim yn X; Wedi'i Ddiswyddo Δ: Wedi'i Guro, wedi'i Gracio |
