506. Ammonium Caprylate

Nomenclature

CAS number: 5972-76-9
Octanoic acid ammonium salt (1:1); caprylic acid ammonium salt.
C8H19NO2; mol wt 161.24.
C 59.59%, H 11.88%, N 8.69%, O 19.85%.
C7H15COONH4.

Description and references

Prepn from the acid and ammonia: McMaster, Magill, J. Am. Chem. Soc. 38, 1793 (1916); Stumpf, Am. Paint J. 38 (45), 60 (1954).

Properties

Monoclinic crystals from ether + alcohol. Somewhat hygroscopic. Decomposes on standing and develops odor of caprylic acid. mp 70-85°. Easily hydrolyzed by water. Freely sol in glacial acetic acid and ethanol; less sol in methanol; slightly sol in acetone and ethyl acetate. Practically insol in chloroform, benzene. Keep well closed.

Use

In photographic emulsions; as insecticide and nematocide; in manuf of zinc caprylate.