| Airports can avoid repeated applications of ethylene or propylene glycol mixtures and reduce not only pollution, but also delays. |
| Similar compounds, with the same possible adverse effects, are ammonium alginate, sodium alginate, and propylene glycol alginate. |
| Keratolytic preparations containing salicylic acid in a propylene glycol gel may be used to remove the stratum corneum. |
| Ethylene or propylene gas mixtures were renewed every day after aeration of the jars. |
| Specimens were dehydrated in a graded series of ethyl alcohol and propylene oxide solutions and embedded in araldite. |
| He used a catalyst discovered by Karl Ziegler to produce polypropylene from propylene. |
