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RESEARCH PRODUCTS NMR Solvent Data Chart

LThe 1H spectra of the residual protons and 13C spectrawere obtained on a Varian Gemini 200 spectrometerat 295 K. The NMR solvents used to acquire thesespectra contain a maximum of and TMS(v/v) respectively. Since deuterium has a spin of 1,triplets arising from coupling to deuterium have theintensity ratio of 1:1:1. m denotes a broad peak withsome fine structures. It should be noted that chemicalshifts can be dependent on Solvent , concentrationand values only, may vary with pH, concen-tration and and boiling points are those of the corre-sponding unlabeled compound (except for D2O).These temperature limits can be used as a guide todetermine the useful liquid range of the gathered from the Merck Index Fourteenth Edition.

The labile deuterons (and protons) of water are available to exchange with labile protons in the chemist's sample and can result in inaccurate integration ratios. The example below shows that just 100 ppm of D 2O can cause problems when studying dilute solutions of analytes. A significant decrease in the integral of 1 labile proton may be observed

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RESEARCH PRODUCTS NMR Solvent Data Chart

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This product is stable for one year after receipt of order if stored under above conditions (unopened). After one year, the solvent should be re-analyzed for chemical purity before use. Chloroform-d / Tetrahydrofuran-d 8 Store refrigerated (-5o to 5oC) away from light and moisture. These products are stable for six months after receipt of order ...

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