| abstract |
A lithium carboxylate crystal, which is obtained by: dissolving an aliphatic carboxylic acid, lithium hydroxide, and urea in water, to give a solution thereof, and crystallizing lithium carboxylate from the solution; a method of producing the lithium carboxylate crystal; and a method of solidifying a halogen-containing liquid organic compound or a gaseous hydrocarbon, by using the lithium carboxylate crystal. |