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Section: 5 | Electrical Conductivity of Aqueous Solutions |
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The table 'Electrical Conductivity κ  of Aqueous Solutions in mS/cm at 20 °C for Indicated Concentration in Mass Percent' has one or more different columns to those in the book version.
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The recommended form of citation is:
John R. Rumble, ed., CRC Handbook of Chemistry and Physics, 102nd Edition (Internet Version 2021), CRC Press/Taylor & Francis, Boca Raton, FL.
If a specific table is cited, use the format: "Physical Constants of Organic Compounds," in CRC Handbook of Chemistry and Physics, 102nd Edition (Internet Version 2021), John R. Rumble, ed., CRC Press/Taylor & Francis, Boca Raton, FL.

ELECTRICAL CONDUCTIVITY OF AQUEOUS SOLUTIONS

The following table gives the electrical conductivity (κ) of aqueous solutions of some acids, bases, and salts as a function of concentration. All values refer to 20 °C. The conductivity (often called specific conductance in older literature) is the reciprocal of the resistivity. The molar conductivity Λ is related to this by Λ = κ/c, where c is the amount-of-substance concentration of the electrolyte. Thus, if κ has units of millisiemens per centimeter (mS/cm), as in this table, and c is expressed in mol/L, then Λ has units of S cm2 mol-1. For these electrolytes, the concentration c corresponding to the mass percent values given here can be found in the table “Concentrative Properties of Aqueous Solutions” in this section. 

Column definitions are as follows.

Column heading Definition
Name Name of solute
Mol. form. Solute formula
κ(mass %) Electrical conductivity at 20 °C, in units mS cm-1; concentration in mass percent indicated by value in parentheses

References

  1. CRC Handbook of Chemistry and Physics, 70th Edition, Weast, R. C., Ed., CRC Press, Boca Raton, FL, 1989, p. D-221.
  2. Wolf, A. V., Aqueous Solutions and Body Fluids, Harper and Row, New York, 1966.
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Electrical Conductivity κ  of Aqueous Solutions in mS/cm at 20 °C for Indicated Concentration in Mass Percent



NameMol. form.CAS Reg. No.κ(0.5%)κ(1%)κ(2%)κ(5%)κ(10%)κ(15%)κ(20%)κ(25%)κ(30%)κ(40%)κ(50%)
Continued on next page...
Acetic acidCH3COOH64-19-70.30.60.81.21.51.71.71.61.41.10.8
AmmoniaNH37664-41-70.50.71.01.11.00.70.50.4
Ammonium chlorideNH4Cl12125-02-910.520.440.395.3180
Ammonium sulfate(NH4)2SO47783-20-27.414.225.757.4105147185215
Barium chlorideBaCl210361-37-24.79.117.440.476.7109.0137.0
Calcium chlorideCaCl210043-52-48.115.729.467.0117157177183172106
Cesium chlorideCsCl7647-17-83.87.413.832.965.8102142
Citric acidC(OH)(COOH)377-92-91.22.13.04.76.27.07.27.1
Copper(II) sulfateCuSO47758-98-72.95.49.319.032.242.3
Formic acidHCOOH64-18-61.42.43.55.67.89.09.910.410.59.98.6
Hydrogen chlorideHCl7647-01-045.192.9183
Lithium chlorideLiCl7447-41-810.119.034.976.4127155170165146
Magnesium chlorideMgCl27786-30-38.616.631.266.910812913412298
Magnesium sulfateMgSO47487-88-94.17.613.327.442.754.251.144.1
Manganese(II) sulfateMnSO47785-87-76.210.621.634.543.747.6
Nitric acidHNO37697-37-228.456.1108
Oxalic acidH2C2O4144-62-714.021.835.365.6
Phosphoric acidH3PO47664-38-25.510.116.231.559.488.4118146173209
Potassium bromideKBr7758-02-35.210.219.547.795.6144194


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