Lab 6B - Introduction In this experiment, standardized...

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Introduction In this experiment, standardized tests and derivatization reactions will be used to try and find three unknowns. By using these different standardized tests and the derivatization reaction, it will be possible to prove what the unknown substances really are. To ensure that all the tests are completed, groups of students will be performing these together to find the three unknowns given to them. Substance MW MP BP D Safety considerations benzophenone 182.22 47.9 305.4 1.11 benzaldehyde 106.13 -26 178.1 1.0415 acetone 58.09 -94.9 56.3 0.79 irritant NaOH 39.9971 318 1390 2.1 chemical burns, flammable butanol 74.1216 -89.5 117.73 0.8098 Sulfur Dioxide 64.054 -72.4 -10 2.551 Iodine 126.9 386.9 457.4 4.933 if large ammounts are consumed= fatal methanol 32.04 -97 64.7 0.7918 toxic 3-pentanone 86.13 -39 102 0.815 Substance MP BP 2,4-DNP mp Semicarbazone mp Acetone 56 126 187 Propanol 48 148 89 Butanal 75 123 95 Furfaral 161 212 202 Heptanal 156 108 109 Benzaldehyde 179 237 222 m-Nitrobenzaldehyde 58 293 246 4-Methylbenzaldehyde 204 234 234 trans-Cinnamaldehyde 252 255 215 vanilin 80 285 271 229 Terephthalaldehyde 116 245 154 2-butanone 80 117 146 3-pentanone 102 156 138 Hexane-2,5-dione 191 257 185 2-heptanone 151 89 123 Pinacolone 106 125 157 Cyclohexanone 155 162 166 Acetophenone 200 238 198
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Benzophenone 48 305 238 167 (+/-) Camphor 179 205 177 237 Benzil 95 347 189 175 Results Substance BP Semicarbazone mp 3-Pentanone 102 138 Unknown 103 138 The unknown shown in this table was guessed to be 3-pentanone because is boiling point
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This note was uploaded on 04/03/2008 for the course CHEM 243A taught by Professor Bharadwaj during the Fall '08 term at University of Arizona- Tucson.

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Lab 6B - Introduction In this experiment, standardized...

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