acido perclorico

HClO₄

ca. 10¹⁰

ca. -10

acido iodidrico

HI

ca. 10⁹

ca. -9

acido bromidrico

HBr

ca. 10⁹

ca. -9

acido cloridrico

HCl

ca. 10⁷

ca. -7

acido nitrico

HNO₃

ca. 200

ca. -2

acido tiocianico

HSCN

70

-1.85

ione idronio

H₃O⁺

55

-1.74

acido clorico

HClO₃

10

-1.0

acido iodico

HIO₃

0.18

0.75

acido ipofosforoso

H₂P(O)OH

10^-2

2.0

acido fluoridrico

HF

6.6 * 10^-4

3.2

acido nitroso

HNO₂

5.0 * 10^-4

3.3

acido cianico

HOCN

3.54 * 10^-4

3.45

acido azotidrico

HN₃

2.37 * 10^-5

4.63

acido ipocloroso

HOCl

2.95 * 10^-8

7.53

acido ipobromoso

HOBr

2.3 * 10^-9

8.65

acido cianidrico

HCN

5.8 * 10^-10

9.25

ione ammonio

NH₄⁺

5.8 * 10^-10

9.25

acido ipoiodoso

HOI

10^-10

10

perossido di idrogeno

H₂O₂

2.5 * 10^-12

11.6

acqua

H₂O

1.82 * 10^-16

15.74

acqua pesante

D₂O

3.5 * 10^-17

16.55

ammoniaca

NH₃

ca. 10^-34

ca. 34

Organic Chemistry
Michigan State University

acido solforico

H₂SO₄
HSO₄^-1

K₁ = 2.4 * 10⁶
K₂ = 1.0 * 10^-2

-6.62   
1.99  

acido cromico

H₂CrO₄
HCrO₄^-1

K₁ = 3.55
K₂ = 3.36 * 10^-7

-0.55  
6.47  

acido solforoso

H₂SO₃
HSO₃^-1

K₁ = 1.71 * 10^-2
K₂ = 5.98 * 10^-8

1.77  
7.22  

H₃PO₄
H₂PO₄^-1
HPO₄^-2

K₁ = 7.1 * 10^-3
K₂ = 6.2 * 10^-8
K₃ = 4.6 * 10^-13

2.15  
7.21  
12.34  

acido fosforoso

H₃PO₃
H₂PO₃^-1

K₁ = 1.6 * 10^-2
K₂ = 6.3 * 10^-7

1.8  
6.2  

acido pirofosforico

H₄P₂O₇
H₃P₂O₇^-1
H₂P₂O₇^-2
HP₂O₇^-3

K₁ = 3 * 10^-2
K₂ = 4.4 * 10^-3
K₃ = 2.5 * 10^-7
K₄ = 5.6 * 10^-10

1.52  
2.36  
6.60  
9.25  

acido carbonico

H₂CO₃
HCO₃^-1

K₁ = 4.35 * 10^-7
K₂ = 4.69 * 10^-11

6.36  
10.33  

acido solfidrico

H₂S
HS^-1

K₁ = 9 * 10^-8
K₂ = ca.10^-15

6.97  
ca.15  

acido borico

H₃BO₃
H₂BO₃^-1
HBO₃^-2

K₁ = 7.2 * 10^-10
K₂ = 1.8 * 10^-13
K₃ = 1.6 * 10^-14

9.14  
12.7  
13.8  

Organic Chemistry
Michigan State University