Pedersen & Myers - Understanding the Principles of Organic Chemistry A Laboratory Experience.pdf

文档介绍：Approximate pKa Values for anic Acids*
Acid Base pKa Acid Base pKa

SO3H SO3 25
O O
OH O 10

F3C OH F3C O
O O
O O
HO O O O
H OH H O
CH S
CH3SH 3
NH3 NH2 4
O O O O
H3CH2CO OCH2CH3 13
H3CH2CO OCH2CH3
O O H H H
OH O
CH3CH2OH CH3CH2O 16
O O
O O
OH O 17
NH2 NH
N H N (CH3)3COH (CH3)3CO 18
O O
O O 20
H3C CH3 H3C CH2
HO OH HO O
O O
24
O O
H3CH2CO CH3 H3CH2CO CH2
NH N
O O H
N N 40
O O *
O O Note that pKa values less than 22 and greater than 18 cannot be measured
9 in water and vary depending on the solvent used for the measurement.
H H H
FFront_Endpapersront_Endpapers 2 111/25/091/25/09 1:09:001:09:00 PMPM
Common Solvents
Name Molecular Formula Boiling Density
[CAS Number] Formula Structure Weight Point oC g/mL
acetic acid O
C H O 116–118
[64-19-7] 2 4 2 OH
acetic anhydride O O
C4H6O3 138–140
[108-24-7] O
acetone O
C H O 55–56
[67-64-1] 3 6
acetonitrile
C H 80–81
[75-05-8] 2 3 3
1-butanol
C H O OH 117
[71-36-3] 4 10
carbon tetrachloride
l 76–77
[56-23-5] 4 4
chloroform
CHCl CHCl 60–62
[67-66-3] 3 3
dichloromethane
methylene chloride CH2Cl2 CH2Cl2 39–40
[75-09-2]
diethyl ether
C H O O 35
[60-29-7] 4 10
N,N- O
dimethylformamide C3H7NO H N 152–153
[68-12-2]
dimethyl sulfoxide O
C H OS 189
[67-68-5] 2 6 S
1,4-dioxane
C H O OO 100–101
[123-91-1] 4 8 2
1,3-dioxolane O
C3H6O2 74–75
[646-06-0] O
ethanol
C H O OH 78
[64-17-5] 2 6
ethyl acetate O
C4H8O2 76–77
[141-78-6] O
n-hexane*
C H 68–69
[110-54-3] 6 14
methanol
CH OCHOH 64–65
[67-56-1] 4 3
n-pentane
C H 35–36
[109-66-0] 5 12
1-propanol
C H O OH 96–97
[71-23-8] 3 8