Ammonium stearate

Ammonium stearate
Names
	IUPAC name azanium;octadecanoate
	Other names Octadecanoic acid, ammonium salt (1:1); Stearic acid amine;
Identifiers
CAS Number	1002-89-7 ;
3D model (JSmol)	Interactive image;
ChemSpider	55192;
ECHA InfoCard	100.012.450
EC Number	213-695-2;
PubChem CID	9861187;
UNII	37899330TZ;
CompTox Dashboard (EPA)	DTXSID0027353;
	InChI InChI=1S/C18H36O2.H3N/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2-17H2,1H3,(H,19,20);1H3 Key: JPNZKPRONVOMLL-UHFFFAOYSA-N;
	SMILES CCCCCCCCCCCCCCCCCC(=O)[O-].[NH4+];
Properties
Chemical formula	NH4C18H35O2
Molar mass	301.515 g·mol−1
Appearance	Yellow-white powder
Density	0.89 g/cm3
Melting point	22 °C (72 °F; 295 K)
Solubility in water	Slightly soluble
Solubility in benzene	Slightly soluble
Solubility in ethanol	Soluble
Solubility in methanol	Soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H319
Precautionary statements	P264, P280, P305+P351+P338
	Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Ammonium stearate is a chemical compound with the chemical formula NH₄C₁₈H₃₅O₂.This is an organic ammonium salt of stearic acid.^[3]^[4]

Synthesis

The compound can be prepared by reacting stearic acid and ammonium carbonate or ammonium hydroxide.^[5]

When heated, ammonium stearate decomposes, releasing toxic fumes of NH₃.

The compound is used to produce vanishing creams^[6] and waterproofing cements.^[7]^[8]

↑ Haynes, William M., ed. (2016). CRC Handbook of Chemistry and Physics (97th ed.). Boca Raton, Florida: CRC Press. pp. 4–47. ISBN 9781498754293.
↑ "Ammonium stearate SDS". www.echemi.com. Version 1.0. Echemi. 15 July 2019. Retrieved 22 August 2026.
↑ "AMMONIUM STEARATE" (PDF). cameochemicals.noaa.gov. Retrieved 18 March 2025.
↑ "Ammonium Stearate | The Merck Index Online". merckindex.rsc.org. Retrieved 18 March 2025.
↑ Allen, Alfred Henry (1898). Commercial Organic Analysis: Part I. Fixed oils, fats, waxes, glycerol, nitroglycerin and nitroglycerin explosives. 3. ed., with revisions and addenda by the author and Henry Leffmann. x, 17-387 pp. 8vo Phila., 1905. P. Blakiston. p. 257. Retrieved 18 March 2025.
↑ Panda, H. (9 April 2015). Herbal Cosmetics Handbook (3rd Revised ed.). ASIA PACIFIC BUSINESS PRESS Inc. p. 85. ISBN 978-81-7833-080-8. Retrieved 18 March 2025.
↑ Al-Jabari, Maher (17 June 2022). Integral Waterproofing of Concrete Structures: Advanced Protection Technologies of Concrete by Pore Blocking and Lining. Woodhead Publishing. p. 256. ISBN 978-0-12-824355-8. Retrieved 18 March 2025.
↑ Decisions of Commissioner of Patents and U.S. Courts in Patent and Trademark and Copyright Cases. U.S. Government Printing Office. 1942. p. 372. Retrieved 18 March 2025.