DATA OF
Stevenson D. P. 1965. On the monomer concentration in liquid water. J. Phys. Chem. 69, 2145-2152.
NOTES
All data have been obtained by the data author. The water was doubly distilled.
The attenuation coefficient was measured with an Applied Physics Corp. Model 15 spectrophotometer. The monochromator and spectrophotometer cell compartments were continuously purged with nitrogen. Spectrophotometer cells 0.1 and 1 cm long were used in the measurement beam, a 0.01 cm cell filled with the same water at T = 24 °C was in the reference beam. Thermostatic cell holder permitted measurement of the attenuation spectrum at any temperature within a range of ~15 to 175 °C.
The original data (Stevenson DP 1965), expressed as absorptivity, eps [liter/(mole cm)], were converted by Lars Kröckel to the decadic attenuation coefficient, c10 [1/cm], using the following formula:
c10 [1/cm] = eps * Cm
where Cm is the molar concentration of water (55.5 mol/liter), and by M. Jonasz (MJC Optical Technology, www.mjcopticaltech.com) to the attenuation coefficient, c [1/m], using the following formula:
c [1/m] = 100 * ln(10) * c10 [1/cm].
Underscore (_) marks the absence of data.
Each column below is separated by a TAB. When you import the file into a spreadsheet, all column headings should align with the numbers.
CALC_LK marks columns calculated by L. Kröckel
CALC_MJ marks columns claculated by M. Jonasz (MJC Optical Technology, www.mjcopticaltech.com)
DATA FILE
T=23.5°C
DATA CALC_LK CALC_MJ
wave- c10 c
length _ _
[μm] [1/cm] [1/m]
180 17.76222 4089.90230
181 11.2776 2596.76336
182 7.034625 1619.78227
183 4.425015 1018.89736
184 2.71062 624.14332
185 1.619046 372.79912
186 1.1057265 254.60294
187 0.6611493 152.23525
T=25.5°C
DATA CALC_LK CALC_MJ
wave- c10 c
length ~ ~
[μm] [1/cm] [1/m]
175.0 168.18165 38725.25602
177.5 45.98675 10588.83935
180.0 20.13984 4637.36954
181.0 12.78720 2944.36161
182.5 4.98290 1147.35536
185.0 1.52092 350.20523
186.0 0.93034 214.21764
187.5 0.49294 113.50361
190.0 0.16109 37.09206
192.5 0.07104 16.35756
195.0 0.03053 7.02864