log10(kp*) = AT4 + BT3 + CT2 + DT + E

T in Kelvin

T range

A

B

C

D

E

Kp1

298 - 1500

-5.2533E-11

2.2979E-07

-3.7800E-04

2.8920E-01

-9.8418E+01

1500 - 5000

0.0000E+00

1.8636E-10

-2.3475E-06

1.0500E-02

-1.6377E+01

Kp2

298 - 1500

-4.6253E-11

2.2023E-07

-3.3272E-04

2.5460E-01

-8.6760E+01

1500 - 5000

0.0000E+00

1.6505E-10

-2.0819E-06

9.4000E-03

1.4586E+01

Kp3

298 - 1500

-8.9733E-12

3.9265E-08

-6.4595E-05

4.9300E-02

-1.6451E+01

1500 - 5000

0.0000E+00

3.0374E-11

-3.8141E-07

1.7000E-03

-2.4360E+00

Kp4

298 - 1500

5.1208E-11

-2.2402E-07

3.6861E-04

-2.8230E-01

9.6794E+01

1500 - 5000

0.0000E+00

-1.8559E-10

2.3375E-06

-1.0500E-02

1.6715E+01

Kp5

298 - 1500

-7.6073E-11

3.3269E-07

-5.4710E-04

4.1830E-01

-1.4375E+02

1500 - 5000

0.0000E+00

2.6841E-10

-3.3790E-06

1.5200E-02

-2.5117E+01

Kp6

298 - 1500

-1.9237E-11

8.4117E-08

-1.3829E-04

1.0570E-01

-3.6402E+01

1500 - 5000

0.0000E+00

6.6881E-11

-8.4371E-07

3.8000E-03

6.4496E+00

Kp7

298 - 1200

-9.8692E-13

3.5356E-09

-4.7588E-06

2.9000E-03

-1.0407E+00

Kp8

298 - 1500

-1.5277E-10

6.6816E-07

-1.1000E-03

8.3990E-01

-2.8659E+02

1500 - 4000

0.0000E+00

8.9665E-10

-9.6550E-06

3.7600E-02

-5.4321E+01

Kp9

298 - 1500

2.3424E-11

-1.0237E-07

1.6815E-04

-1.2840E-01

4.9814E+01

1500 - 4000

0.0000E+00

-1.3698E-10

1.4770E-06

-5.9000E-03

1.4414E+01

Kp10

298 - 1500

8.3822E-11

-3.6648E-07

6.0237E-04

-4.6010E-01

1.6147E+02

1500 - 4000

0.0000E+00

-4.8969E-10

5.2746E-06

-2.0600E-02

3.4372E+01

Kp11

298 - 1500

1.5091E-11

-6.6349E-08

1.1032E-04

-8.6400E-02

2.6451E+01

Kp12

298 - 1500

-4.8388E-11

2.1160E-07

-3.4783E-04

2.6540E-01

-8.9921E+01

Kp13

298 - 1500

-2.5710E-11

1.1247E-07

-1.8506E-04

1.4170E-01

-4.6952E+01

Kp14

298 - 1500

1.9569E-11

-8.5585E-08

1.4078E-04

-1.0780E-01

3.8347E+01

Kp15

600 - 2000

-8.7262E-12

5.5804E-08

-1.3742E-04

1.6220E-01

-9.0427E+01

2000 - 4000

0.0000E+00

2.7973E-10

-3.3286E-06

1.4600E-02

-2.6892E+01

Kp16

600 - 2000

1.0847E-12

-7.0150E-09

1.7592E-05

-2.1400E-02

6.4824E+00

2000 - 4000

0.0000E+00

-4.4574E-11

5.2571E-07

-2.2000E-03

-1.9461E+00

Kp17

600 - 2000

-8.9659E-12

5.7317E-08

-1.4104E-04

1.6620E-01

-9.0746E+01

2000 - 4000

0.0000E+00

2.8274E-10

-3.3655E-06

1.4700E-02

-2.5600E+01

Kp18

300 - 1600

-9.8377E-12

4.5324E-08

-7.8185E-05

6.2400E-02

-1.9172E+01

1600 - 3000

0.0000E+00

1.8015E-10

-1.4830E-06

4.5000E-03

-2.4475E+00

Kp19

300 - 1800

-1.0342E-11

5.2677E-08

-9.9790E-05

8.6600E-02

-3.3203E+01

1800 - 5000

0.0000E+00

5.2312E-11

-6.8816E-07

3.3000E-03

-5.8739E+00

Kp1 = pO / pO21/2

Kp2 = pH / pH21/2

Kp3 = pOH / (pO21/2 pH21/2)

Kp4 = pH2O / (pH2 pO21/2)

Kp5 = pN / pN21/2

Kp6 = pNO / (pN2 pO21/2)

Kp7 = pC(c,diamond) / pC(c,graphite)

Kp8 = pC (g) / pC

Kp9 = pCO / (pC pO21/2)

Kp10 = pCO2 / (pC pO2)

Kp11 = pCH4 / (pC (pH2)2)

Kp12 = pC2H2 / ((pC)2 pH2)

Kp13 = pCl / pCl21/2

Kp14 = pHCl / (pH21/2 pCl21/2)

Kp15 = pNH / (pN21/2 pH21/2)

Kp16 = pNH3 / (pN21/2 pH23/2)

Kp17 = pCH2 / (pC pH2)

Kp18 = pNO2 / (pNO pO21/2)

Kp19 = pNO / ( pN21/2 pO21/2)