Read More
Date: 21-12-2015
2241
Date: 12-7-2018
1014
Date: 20-12-2015
2489
|
Formula |
IUPAC Name |
Molecular Weight |
Boiling Point |
Water Solubility |
---|---|---|---|---|
CH3(CH2)2CO2H | butanoic acid | 88 | 164 ºC | very soluble |
CH3(CH2)2CONH2 | butanamide | 87 | 216-220 ºC | soluble |
CH3CH2CONHCH3 | N-methylpropanamide | 87 | 205 -210 ºC | soluble |
CH3CON(CH3)2 | N,N-dimethylethanamide | 87 | 166 ºC | very soluble |
HCON(CH3)CH2CH3 | N-ethyl, N-methylmethanamide | 87 | 170-180 ºC | very soluble |
CH3(CH2)3CN | pentanenitrile | 83 | 141 ºC | slightly soluble |
CH3CO2CHO | ethanoic methanoic anhydride |
88 | 105-112 ºC | reacts with water |
CH3CH2CO2CH3 | methyl propanoate | 88 | 80 ºC | slightly soluble |
CH3CO2C2H5 | ethyl ethanoate | 88 | 77 ºC | moderately soluble |
CH3CH2COCl | propanoyl chloride | 92.5 | 80 ºC | reacts with water |
CH3(CH2)3CHO | pentanal | 86 | 103 ºC | slightly soluble |
CH3(CH2)2COCH3 | 2-pentanone | 86 | 102 ºC | slightly soluble |
The last nine entries in the above table cannot function as hydrogen bond donors, so hydrogen bonded dimers and aggregates are not possible. The relatively high boiling points of equivalent 3º-amides and nitriles are probably due to the high polarity of these functions. Indeed, if hydrogen bonding is not present, the boiling points of comparable sized compounds correlate reasonably well with their dipole moments.
|
|
5 علامات تحذيرية قد تدل على "مشكل خطير" في الكبد
|
|
|
|
|
لحماية التراث الوطني.. العتبة العباسية تعلن عن ترميم أكثر من 200 وثيقة خلال عام 2024
|
|
|