Surface tension values

This is a table of surface tension values^[1] for some interfaces at the indicated temperatures. Note that the SI units millinewtons per meter (mN·m⁻¹) are equivalent to the cgs units dynes per centimetre (dyn·cm⁻¹).

Surface tension for some interfaces
Interface	Temperature	γ in (mN·m−1)
Water–air	20 °C	72.86 ± 0.05[2]
Water–air	21.5 °C	72.75
Water–air	25 °C	71.99±0.05[2]
Methylene iodide–air	20 °C	67.00
Methylene iodide–air	21.5 °C	63.11
Ethylene glycol–air	25 °C	47.3
Ethylene glycol–air	40 °C	46.3
Dimethyl sulfoxide–air	20 °C	43.54
Propylene carbonate–air	20 °C	41.1
Benzene–air	20 °C	28.88
Benzene–air	30 °C	27.56
Toluene–air	20 °C	28.52
Chloroform–air	25 °C	26.67
Propionic acid–air	20 °C	26.69
Butyric acid–air	20 °C	26.51
Carbon tetrachloride–air	25 °C	26.43
Butyl acetate–air	20 °C	25.09
Diethylene glycol–air	20 °C	30.09
Nonane–air	20 °C	22.85
Methanol–air	20 °C	22.50
Ethanol–air	20 °C	22.39
Ethanol–air	30 °C	21.55
Octane–air	20 °C	21.61
Heptane–air	20 °C	20.14
Ether–air	25 °C	20.14
Hexane-air	20 °C	17.9 [3]
Mercury–air	20 °C	486.5
Mercury–air	25 °C	485.5
Mercury–air	30 °C	484.5
NaCl–air	1073 °C	115
KClO3–air	20 °C	81
Water–1-Butanol	20 °C	1.8
Water–Ethyl acetate	20 °C	6.8
Water–Heptanoic acid	20 °C	7.0
Water–Benzaldehyde	20 °C	15.5
Water–transformer oil	20 °C	37.2[4]
Water–Mercury	20 °C	415
Ethanol–Mercury	20 °C	389
Water–1,2-Dichloroethane	20 °C	30.5 ± 0.3[5]
Water–α,α,α-trifluorotoluene	20 °C	38.0 ± 0.5[5]
Water–nitrobenzene	20 °C	24.4 ± 0.2[5]
Water–nitromethane	20 °C	16.0 ± 0.2[5]
Water–propylene carbonate	20 °C	2.9 ± 0.1[6]

 

This article uses material from the Wikipedia article  Metasyntactic variable, which is released under the  Creative Commons Attribution-ShareAlike 3.0 Unported License.