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en:relative_permittivity_of_solvents [2013/01/31 14:38] (current)
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 +
 +======Relative permittivity of solvents======
 +^solvent^relative permittivity^
 +|formamide|110|
 +|water|78.30 (25ºC) ([[#​Temperature dependence]])|
 +|dimethylsulfoxide(DMSO)|48.9|
 +|methanol|32.6|
 +|ethanol|24.3|
 +|acetone|20.7|
 +|ammonia|16.9|
 +|chloroform|4.8|
 +|diethylether|4.3|
 +|benzene|2.3|
 +|tetrachloromethane|2.2|
 +|hexane|1.9|
 +
 +
 +
 +
 +
 +=====Temerature dependence of water=====
 +<m>
 +ε0ε = 87.740 - 0.40008T + 9.398*10^-4T^2 - 1.410*10^-6T^3
 +</m>
 +
 +<​plot>​
 +set size 0.6
 +set xrange[0:​100]
 +set xtics nomirror ("0 Cdeg" 0, "25 Cdeg" 25, "100 Cdeg" 100)
 +set arrow from 25,55 to 25,90 nohead
 +set title "​Relative permittivity of water"
 +f(x) = 87.740 - 0.40008*x + 9.398*(10**-4)*(x**2) - 1.410 *(10**-6)*(x**3)
 +plot f(x)
 +</​plot>​
 +
 +