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2017-03-24 发布于湖北
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實驗熔點測定一-wun.pdf

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實驗熔點測定一-wun

1 weight) (boiling point) (solubility) (melting point, mp) (molecular (refractive index) (density) (freezing point) 300 (melting range) 121.5~124 2 Experimental Organic Chemistry 1 3 2 AB 115~124 A A 130~133 (133 ) B 1-1 1-1 MP-1D 3 MP-1D LED (rheostat) 3 45 1-2 300 250 200 150 100 50 0 0 10 20 30 40 50 1-2 133 +2? 2.0 1-3 (correction factor) 131 133 133 (corr.) 4 Experimental Organic Chemistry 3 2 1 0 80 100 120 140 160 180 200 220 1 2 3 1-3 1 /min 10 d 1-4 1-6 1~2 mm 5 (a) (b) (homogeneous) 1-4 (a) (b) 1-5 6 Experimental Organic Chemistry 1-6 ···································································································· 1 ········································································································ 3~5 ········································································································ 1 ··············································································································· 1 ··············································································································· 1 (Benzoic acid, C7H6O2) ····································································0.25 g (Acetanilide, C8H9NO) ·································································0.05 g (naphthalene, C10H8) ·······················0.10 g 1. 1. 2. 0.1 g 3. 4. 5. 2 3 0.15 g 6. 7. 2~3 8. 0.05 g 7 3 1. Fessenden, R. J.; Fessenden, J. S. Techniques and Experiments for Organic Chemistry; PWS Publishers: Boston, Massachusetts, 1983. 8 Experimental Organic Chemistry 9 10 Experimental Organic Chemistry 1. 11 12 Experimental Organic Chemistry 1. 4 2. 3. 13 (phenylalanine) monosodium glutamate (aspartic acid) (aspartame) (crystallization) (3) (4) (5) (6) (1) (2) (7) 14 Experimental Organic Chemistry (2) (4) (6) (7) 2-1 solvent pair solvent pair (1) (5) (3) 2-2 solvent pair charcoal) (precipitation) (activated oiling out oiling out cake (mother liquor) 15 filter (aspirator) 16 Experimental Org