Exp090

Objective
To determine the solubility of 2,3-dihydroxybenzoic acid in Methanol,Ethanol, Acetonitrile,THF, Toluene and DMSO.

Conclusion
This experiment had to be aborted since the NMR could not be taken. =Log= 12:35 Labeled 6 half dram vials **1A** to **6A.** 12:50 Placed a small amount of the solute and the six major solvents: **Methanol, Ethanol, Acetonitrile, THF,Toluene** and **DMSO.** 13:00 Vortexed the vials for 15 seconds. 13:05 Placed vials in the sonicator for 30 minutes at T=25C. 13:35 Removed vials from the sonicator at T=28C. 13:50 Vials 4A and 6A were observed to be completely dissolved, hence they were revortxed and resonicated. T=28C. 14:20 Vials were removed at T=29C. 14:50 Vials were centrifuged for 2-3 mintues. 15:00 Vials were transferred into clean dry test tubes with 0.7uM chloroform-D added to it.
 * 2009-05-16**

12:15 It was observed that the supernatents in test-tubes 1A to 4-A turned had solid in it, hence the NMR could not be taken.
 * 2009-05-23**