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Surface tension values

Surface tension for some interfaces
Interface	Temperature	γ in (mN·m^–1)
Water - air	20 °C	72.86±0.05^[1]
Water - air	21.5 °C	72.75
Water - air	25 °C	71.99±0.05^[1]
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	21.62
Heptane - air	20 °C	20.14
Ether - air	25 °C	20.14
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 - Mercury	20 °C	415
Ethanol - Mercury	20 °C	389

Surface tension values^[2] 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).