Table II.

The list of organic solvents categorized by the shape of mefenamic acid crystals they can produce

Polyhedral	Needle	Supersaturation dependent (polyhedral supersaturation range, needle supersaturation range)
1,2 dichloroethane	1-bromobutane	1,4 dioxane (1.18 – 1.28, 1.39 – 1.91)
1-chlorobutane	1-methylnaphtalene	2-butanol (1.51 – 1.83, 1.94 – 2.03)
1-octanol	aniline	2-butanone (1.10 – 1.50, 1.60 – 2.01)
2-methoxyethanol	anisole	2-propanol (1.14 – 1.41, 1.49 – 1.99)
acetic acid	methyl acetate	butyl acetate (1.32, 1.42 – 2.00)
acetone	nitromethane	diethyl sulfide (1.06 – 1.57, 1.76 – 1.94)
acetonitrile	toluene	Methanol (1.13 – 1.22, 1.30 – 1.98)
chloroform
ethanol
DMF
ethyl acetate
iodomethane
triethylamine
trichloroethylene