Ammonium Oleate

Title: Ammonium Oleate
CAS Registry Number: 544-60-5
CAS Name: (Z)-9-Octadecenoic acid ammonium salt
Additional Names: oleic acid ammonium salt; ammonia soap
Molecular Formula: C18H37NO2
Molecular Weight: 299.49
Percent Composition: C 72.19%, H 12.45%, N 4.68%, O 10.68%
Line Formula: CH3(CH2)7CH=CH(CH2)7COONH4
Literature References: Prepd from oleic acid and excess 28-30% NH3 soln: Stumpf, Am. Paint J. 38, no. 45, 60, 64, 68 (1954), C.A. 48, 12428b (1954).
Properties: Yellowish-brown paste, softens at 50-55°F, mp 70-72°F. At 80°F: sol in water; slightly sol in acetone, ethanol, methanol, benzene, CCl4, xylene, naphtha. Sol in water at 212°F, acetone at 134°F, ethanol at 172°F, methanol at 148°F, benzene at 176°F, CCl4 at 170°F, xylene at 180°F, naphtha at 160°F.
Melting point: mp 70-72°F
Use: Detergent, solidifying alcohol, demonstrating liquid crystals according to Lehmann.
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