D
| Diethanolamine |
| A chemical compound used as a chemical intermediate. It can also absorb or remove acidic gases, like hydrogen sulfide and carbon dioxide, from natural gas. |
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| Digestive Enzymes |
| Enzymes excreted by the pancreas that help convert food into usable nutrients. |
| Dilution |
| The process of decreasing the concentration of a solute, usually simply by mixing with more solvent, like adding more water to a solution. Essential oils are diluted with vegetable oils called carrier oils. To learn more about dilution, click here! |
| Distillation |
| A refining process that collects the pure liquid or vapors given off by heating, and then cooling a mixture. |