Acido

Formula

K_a1

K_a2

K_a3

Acetico

CH₃COOH

1.74x10^-5

Ione Ammonio

NH₄⁺

5.70x10^-10

Ione Anilinio

C₆H₅NH₃⁺

2.50x10^-5

Arsenico

H₃AsO₄

5.8x10^-3

1.1x10^-7

3.2x10^-12

Arsenioso

H₃AsO₃

5.1x10^-10

Benzoico

C₆H₅COOH

6.28x10^-5

Borico

H₃BO₃

5.81x10^-10

1-Butanoico

CH₃CH₂CH₂COOH

1.52x10^-5

Carbonico

H₂CO₃

4.44x10^-7

4.69x10^-11

Cianidrico

HCN

6.2x10^-10

Citrico

HOOC(OH)C(CH₂COOH)₂

7.45x10^-4

1.73x10^-5

4.02x10^-7

Cloridrico

HCl

Elevata

mono-Cloroacetico

CH₂ClCOOH

1.36x10^-3

di-Cloroacetico

CHCl₂COOH

5.01x10^-2

tri-Cloroacetico

CCl₃COOH

2.0x10^-1

Fenolo

C₆H₅OH

1.00x10^-10

Fosforico

H₃PO₄

7.11x10^-3

6.32x10^-8

4.5x10^-13

Fosforoso

H₃PO₃

3x10^-2

1.62x10^-7

Formico

HCOOH

1.80x10^-4

o-Ftalico

C₆H₄(COOH)₂

1.12x10^-3

3.91x10^-6

trans-Fumarico

HOOCCH:CHCOOH

8.85x10^-4

3.21x10^-5

Glicolico

HOCH₂COOH

1.47x10^-4

Ione Idrazinio

H₂NNH₃⁺

1.05x10^-8

Idrazoico

HN₃

2.2x10^-5

Fluoridrico

HF

6.7x10^-4

Solfidrico

H₂S

9.6x10^-8

1.3x10^-14

Ione Idrossilammonio

HONH₃⁺

1.10x10^-6

Ipocloroso

HClO

3.0x10^-8

Iodico

HIO₃

1.7x10^-1

Lattico

CH₃CHOHCOOH

1.39x10^-4

Maleico

cis-HOOCCH:CHCOOH

1.3x10^-2

5.9x10^-7

Malico

HOOCCHOHCH₂COOH

3.48x10^-4

8.00x10^-6

Malonico

HOOCCH₂COOH

1.42x10^-3

2.01x10^-6

Mandelico

C₆H₅CHOHCOOH

4.0x10^-4

Ione Metilammonio

CH₃NH₃⁺

2.3x10^-11

Nitrico

HNO₃

Elevata

Nitroso

HNO₂

7.1x10^-4

Ossalico

HOOCCOOH

5.60x10^-2

5.42x10^-5

Perclorico

HClO₄

Elevata

Periodico

H₅IO₆

2x10^-2

5x10^-9

Perossido di Idrogeno

H₂O₂

2.2x10^-12

Picrico

(NO₂)₃C₆H₂OH

4.3x10^-1

Piperidinio

C₅H11NH⁺

7.50x10^-12

Propanoico

CH₃CH₂COOH

1.34x10^-5

Piridinio

C₅H₅NH⁺

5.90x10^-6

Salicilico

C₆H₄(OH)COOH

1.06x10^-3

Sulfamico

H₂NSO₃H

1.03x10^-1

Succinico

HOOCCH₂CH₂COOH

6.21x10^-5

2.31x10^-6

Solforico

H₂SO₄

Elevata

1.02x10^-2

Solforoso

H₂SO₃

1.23x10^-2

6.6x10^-8

Tartarico

HOOC(CHOH)₂COOH

9.20x10^-4

4.31x10^-5

Tiocianico

HSCN

0.13

Tiosolforico

H₂S₂O₃

0.3

2.5x10^-2

Tricloroacetico

Cl₃CCOOH

3

Ione Trimetilammonio

(CH₃)₃NH⁺

1.58x10^-10