CRSEXP024

=Researcher= Cuepil Choi =Objective= To study the HNMR shift of methanol and water. Also to monitor the mixture to be completely sure nothing reacts. =Procedure= Methanol and water were mixed together in three different ratios. The mixtures roughly followed "majority methanol," "majority water," and "roughly equal." The mixture amounts were not predetermined as to add randomness to the ratios. =Results=  [|HNMR 1] - methanol excess [|HNMR 2] - very roughly equal amounts [|HNMR 3] - water excess [|HNMR 4] - water excess day 2 [|HNMR 5] - very roughly equal day 2 [|HNMR 6] - methanol excess day 2 =Discussion= The peaks shifted as expected and merged together only when water became the major component of the mixture. There seems to be no reaction. =Conlusion= The water peak is visible and is separate from the methanol OH peak when water is not too dominant. As water increases, the peaks shift closer to each other and merge together. =Log=

2013-09-10
10:33 0.2747 g of methanol and 0.0718 g of water were added to sample S-1LS 10:35 0.2237 g of water and 0.2994 g of methanol were added to sample S-2LL 10:38 0.1673 g of methanol and 0.6204 g of water were added to sample S-3SL 10:50 HNMR 1 taken of S-1LS; D2O used in outside for all 3 HNMR spectra. 11:00 HNMR 2 taken of S-2LL 11:13 HNMR 3 taken of S-3SL

2013-09-11
10:16 HNMR 4 taken of S-3SL 10:20 HNMR 5 taken of S-2LL 10:27 HNMR 6 taken of S-1LS