Some papers are published that DAST crystals are successfully grown without any inert gas. But I couldn't grow crystals by slow evaporation in open air condition? Could you please tell me any suggestions to grow the crystals?
If evaporative cooling can be avoided, just try to crystallize by increasing the cooling rate i.e.: 0.2oC/min followed by increasing the amount of solvent to control the supersaturation.
You should not allow the solvent to evaporate completely so that the crystal does not come in contact with air. Harvest the crystal when there is sufficient solution.
Dear jerald ramaclus,
The problem is the DAST solution will become hydrated by inclusion of water molecules from air at slow evaporation.
Instead of water, use oil or other liquids in the bath. Humidity can also affect.
What is DAST?
Wikipedia abbreviates the compound Diethylaminosulfur trifluoride as DAST which is a liquid.
Respected Sir,
The abbreviation for DAST is 4-N,N-dimethylamino -4’-N’-methyl
stilbazoliumtosylate (DAST)
Thank you. I can send you some information but I do not know your email. Mine is [email protected]
Respected Sir,
My email id: [email protected]. Thanks for your kind response.
- Badges
- Science topic
- Similar topics
- Physical Sciences
- Materials Science
- Materials
- Inorganic Materials
- Metals
- Alloys
- Steel