| Similarity | Rank | |
|---|---|---|
| tetrachloride | 0.891 | 38419 |
| nitric | 0.875 | 22052 |
| phosgene | 0.858 | 98640 |
| &sub2; | 0.855 | 34174 |
| oxide | 0.852 | 7892 |
| trioxide | 0.849 | 83599 |
| hexafluoride | 0.847 | 78594 |
| monoxide | 0.847 | 12904 |
| hydrochloric | 0.846 | 22757 |
| vocs | 0.846 | 67555 |
| ammonium | 0.841 | 22976 |
| nox | 0.835 | 28969 |
| ammonia | 0.834 | 10958 |
| polycyclic | 0.831 | 68633 |
| fluorocarbon | 0.831 | 92192 |
| ethane | 0.830 | 70857 |
| unburned | 0.822 | 89697 |
| nitrogen | 0.820 | 6386 |
| ferric | 0.819 | 42961 |
| sulphuric | 0.818 | 21898 |
| methane | 0.817 | 11786 |
| bromine | 0.816 | 45010 |
| benzene | 0.815 | 21692 |
| methanol | 0.814 | 19662 |
| phenol | 0.814 | 28644 |