| D |
|
| Decant |
Pouring
a liquid away from a solid residue. |
| Decolourising |
The removal
of coloured impurities from a solution by heating with a small amount
of decolourising charcoal followed by filtration. |
| Desiccant |
Another
word for drying agent. |
| Develop |
The rise
of a solvent up a TLC plate. |
| Distillate |
The liquid
that is collected from a distilation. |
| Dropwise |
Addition
of a solution or liquid at a very slow (drop-by-drop) rate to ensure
accuracy (as in titrations) or to prevent unctrollable reactions. |
| Drying
Agent |
A solid
material (for example an anhydrous salt) that is used to remove moistue
from solvents or in desiccators or guard tubes. |
| Drying
Over... |
Removal
of moisture from organic solvents by adding anhydrous salts (such
as sodium sulphate) followed their removal by fitration. |
| |
|
