---
title: LJPcalc - Table of Ion Mobilities
description: Mobilities and conductances for many ions with references
---
# LJPcalc Ion Charge and Conductivity Library
### Notes
* This document provides a table supplying [elementary charge](https://en.wikipedia.org/wiki/Elementary_charge) and [molar conductivity](https://en.wikipedia.org/wiki/Molar_conductivity) for common ions.
* All conductivities on this page assume ambient temperature (~25C).
* Conductivities normalized to K (73.5) are suffixed with "*K".
* Ions higher in the list are used by LJPcalc when duplicates are present.
* Uncharged molecules (like glucose) don't conduct electricity in solution and therefore do not influence LJP
* Large charged molecules (like EGTA and phosphocreatine) have low mobilities so their influence on LJP is negligible when solutions contain appreciable concentrations of small ions. Therefore, large molecules can be omitted from LJP calculations for most biological applications.
### **Langes Handbook of Chemistry**
Fifteenth Edition, Table 8.32, page 997\
http://fptl.ru/biblioteka/spravo4niki/dean.pdf
Inorganic Cations|Charge|Conductivity (E-4)
---|---|---
Ag|+1|61.9
Al|+3|61
Ba|+2|63.9
Be|+2|45
Ca|+2|59.5
Cd|+2|54
Ce|+3|70
Co|+2|53
Co(NH3)6|+3|100
Co(ethylenediamine)3|+3|74.7
Cr|+3|67
Cs|+1|77.3
Cu|+2|56.6
D|+1|213.7
Dy|+3|65.7
Er|+3|66
Eu|+3|67.9
FeII|+2|53.5
FeIII|+3|69
Gd|+3|67.4
H|+1|350.1
Hg2|+2|68.7
Hg|+2|63.6
Ho|+3|66.3
K|+1|73.5
La|+3|69.6
Li|+1|38.69
Mg|+2|53.06
Mn|+2|53.5
NH|4|73.7
N2H5|+1|59
Na|+1|50.11
Nd|+3|69.6
Ni|+2|50
Pb|+2|71
Pr|+3|69.6
Ra|+2|66.8
Rb|+1|77.8
Sc|+3|64.7
Sm|+3|68.5
Sr|+2|59.46
Tl|+1|74.9
Tm|+3|65.5
UO2|+2|32
Y|+3|62
Yb|+3|65.2
Zn|+2|52.8
Inorganic Anions|Charge|Conductivity (E-4)
---|---|---
Au(CN)2|-1|50
Au(CN)4|-1|36
B(C6H5)4|-1|21
Br|-1|78.1
Br3|-1|43
BrO3|-1|55.7
Cl|-1|76.31
ClO2|-1|52
ClO3|-1|64.6
ClO4|-1|67.3
CN|-1|78
CO3|-2|69.3
Co(CN)6|-3|98.9
CrO4|-2|85
F|-1|55.4
Fe(CN)6 IIII|-4|110.4
Fe(CN)6 III|-3|100.9
H2AsO4|-1|34
HCO3|-1|44.5
HF2|-1|75
HPO4|-2|33
H2PO4|-1|33
HS|-1|65
HSO3|-1|50
HSO4|-1|50
H2SbO4|-1|31
I|-1|76.9
IO3|-1|40.5
IO4|-1|54.5
MnO4|-1|61.3
MoO4|-2|74.5
N3|-1|69.5
N(CN)2|-1|54.5
NO2|-1|71.8
NO3|-1|71.42
NH2SO3 (sulfamate)|-1|48.6
OCN (cyanate)|-1|64.6
OH|-1|198
PF6|-1|56.9
PO3F|-2|63.3
PO4|-3|69
P2O7|-4|96
P3O9|-3|83.6
P3O10|-5|109
ReO4|-1|54.9
SCN (thiocyanate)|-1|66.5
SeCN|-1|64.7
SeO4|-2|75.7
SO3|-2|79.9
SO4|-2|80
S2O3|-2|85
S2O4|-2|66.5
S2O6|-2|93
S2O8|-2|86
WO4|-2|69.4
Organic Cations|Charge|Conductivity (E-4)
---|---|---
Decylpyridinium|+1|29.5
Diethylammonium|+1|42
Dimethylammonium|+1|51.5
Dipropylammonium|+1|30.1
Dodecylammonium|+1|23.8
Ethylammonium|+1|47.2
Ethyltrimethylammonium|+1|40.5
Isobutylammonium|+1|38
Methylammonium|+1|58.3
Piperidinium|+1|37.2
Propylammonium|+1|40.8
Tetrabutylammonium|+1|19.5
Tetraethylammonium|+1|32.6
Tetramethylammonium|+1|44.9
Tetrapropylammonium|+1|23.5
Triethylsulfonium|+1|36.1
Trimethylammonium|+1|47.2
Trimethylsulfonium|+1|51.4
Tripropylammonium|+1|26.1
Organic Anions|Charge|Conductivity (E-4)
---|---|---
Acetate|-1|41
Benzoate|-1|32.4
Bromoacetate|-1|39.2
Bromobenzoate|-1|30
Butanoate|-1|32.6
Chloroacetate|-1|42.2
m-Chlorobenzoate|-1|31
o-Chlorobenzoate|-1|30.5
Citrate|-3|70.2
Crotonate|-1|33.2
Cyanoacetate|-1|43.4
Cyclohexanecarboxylate|-1|28.7
Cyclopropane-1,3-dicarboxylate2|-1|53.4
Decylsulfonate|-1|26
Dichloroacetate|-1|38.3
Diethylbarbiturate|-2|26.3
Dihydrogencitrate|-1|30
Dimethylmalonate|-2|49.4
3, 5-Dinitrobenzoate|-1|28.3
Dodecylsulfonate|-1|24
Ethylmalonate|-1|49.3
Ethylsulfonate|-1|39.6
Fluoroacetate|-1|44.4
Fluorobenzoate|-1|33
Formate|-1|54.6
Fumarate|-2|61.8
Glutarate|-2|52.6
Hydrogenoxalate|-1|40.2
Iodoacetate|-1|40.6
Lactate|-1|38.8
Malate|-2|58.8
Malonate|-1|63.5
3-Methylbutanoate|-1|32.7
Methylsulfonate|-1|48.8
Naphthylacetate|-1|28.4
1, 8-Octanedioate|-2|36
Octylsulfonate|-1|29
Oxalate|-2|74.11
Phenylacetate|-1|30.6
m-Phthalate|-2|54.7
o-Phthalate|-2|52.3
Picrate|-1|30.37
Propanoate|-1|35.8
Propylsulfonate|-1|37.1
Salicylate|-1|36
Succinate|-2|58.8
Tartrate|-2|59.6
Trichloroacetate|-1|36.6
Trimethylacetate|-1|31.9
### UNSW Medicine
https://medicalsciences.med.unsw.edu.au/research/research-services/ies/ionicmobilitytables
Ion Table 1|Charge|Conductivity (E-4)
---|---|---
Choline|+1|0.51*K
Cs|+1|1.05*K
K|+1|1*K
Li|+1|0.526*K
NH4 (Ammonium)|+1|1.001*K
Na|+1|0.682*K
Rb|+1|1.059*K
TEA (TetraethylAmmonium)|+1|0.444*K
TMA (TetramethylAmmonium)|+1|0.611*K
Acetate|-1|0.556*K
Benzoate|-1|0.441*K
Br|-1|1.063*K
Cl|-1|1.0382*K
ClO4 (Perchlorate)|-1|0.916*K
F|-1|0.753*K
H2PO|-1|0.45*K
HCO3|-1|0.605*K
I|-1|1.0456*K
NO3 (Nitrate)|-1|0.972*K
Picrate|-1|0.411*K
Propionate|-1|0.487*K
SCN (Thiocyanate)|-1|0.901*K
Co|+2|0.367*K
Mg|+2|0.361*K
HPO4|-2|0.39*K
SO4|-2|0.544*K
Ion Table 2|Charge|Conductivity (E-4)
---|---|---
NMDG|+1|0.33*K
Tris|+1|0.4*K
Aspartate|-1|0.3*K
Gluconate|-1|0.33*K
Glutamate|-1|0.26*K
HEPES|-1|0.3*K
Isethionate|-1|0.52*K
MES|-1|0.37*K
MOPS|-1|0.35*K
EGTA(2-)|-2|0.24*K
EGTA(3-)|-3|0.25*K
Ion Table 3|Charge|Conductivity (E-4)
---|---|---
Thallium|+1|1.02*K
Butyrate|-1|0.44*K
Citrate|-3|0.318*K
2-(Methyl-Amino) Ethanol|+1|0.49*K
N-Methylethanolamine|+1|0.49*K
Ion Table 4|Charge|Conductivity (E-4)
---|---|---
Ag|+1|0.842*K
Diethylammonium|+1|0.57*K
Dimethylammonium|+1|0.705*K
Ethyltrimethylammonium|+1|0.551*K
H|+1|4.757*K
Piperidinium|+1|0.506*K
Tetrabutylammonium|+1|0.265*K
Tetrapropylammonium|+1|0.318*K
Triethylammonium|+1|0.467*K
Trimethylammonium|+1|0.643*K
Bromoacetate|-1|0.533*K
Bromobenzoate|-1|0.41*K
Chloroacetate|-1|0.541*K
CNO (Cyanate)|-1|0.879*K
Cyanoacetate|-1|0.59*K
Dichloroacetate|-1|0.521*K
Ethylsulfate|-1|0.539*K
Ethylsulfonate|-1|0.539*K
Fluoroacetate|-1|0.604*K
Fluorobenzoate|-1|0.45*K
Formate|-1|0.743*K
Iodoacetate|-1|0.552*K
Lactate|-1|0.528*K
Methylsulfate|-1|0.664*K
methanesulfonate|-1|0.664*K
Methylsulfonate|-1|0.664*K
OH (hydroxide)|-1|2.69*K
ReO4 (Rhenate)|-1|0.747*K
Salicylate|-1|0.49*K
Trichloroacetate|-1|0.476*K
Cd|+2|0.37*K
Cu|+2|0.365*K
Fe|+2|0.37*K
Hg|+2|0.433*K
Mn|+2|0.364*K
Ni|+2|0.337*K
Pb|+2|0.48*K
Malate|-2|0.4*K
Maleate|-2|0.421*K
Oxalate|-2|0.504*K
Succinate|-2|0.4*K
Gd|+3|0.305*K
Fe|+3|0.308*K
La|+3|0.316*K
Citrate|-3|0.318*K
ATP (Adenosine 5'-Triphosphate)|-2|0.15*K
ATP (Adenosine 5'-Triphosphate)|-3|0.15*K
ATP (Adenosine 5'-Triphosphate)|-4|0.15*K
Ion Table 5|Charge|Conductivity (E-4)
---|---|---
2-AP (2-aminopyridine)|+1|0.45*K
3-AP (3-aminopyridine)|+1|0.46*K
4-AP (4-aminopyridine)|+2|0.29*K
### **Ions likely irrelevant to LJP calculations**
These ions are very unlikely to affect the calculated LJP
due to exceptionally low mobility, no charge, or common
use at extremely low concentrations (see the theory page
for details).
By listing such molecules here we confirm we know they exist,
and remind users they are probably not important for caculating LJP.
Irrelevant Ion|Charge|Conductivity (E-4)
---|---|---
GTP|+1|0
Glucose|0|0
Sucrose|0|0
Dextrose|0|0