Ammonium stearate

Ammonium stearate
Names
	IUPAC name azanium;octadecanoate
	Other names Octadecanoic acid, ammonium salt
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	C18H39NO2
Molar mass	301.515 g·mol−1
Appearance	Yellow-white powder
Melting point	70-75 °F
Solubility in water	soluble
Hazards
	GHS labelling:
Pictograms
Signal word	Warning
Hazard statements	H315
Precautionary statements	P264+P265, P280, P305+P351+P338, P337+P317
	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 CH₃(CH₂)₁₆COONH₄.This is an organic ammonium salt of stearic acid.^[1]^[2]

Synthesis

The compound can be prepared by reacting stearic acid and excess 28-30% NH₃ solution. Also by reacting stearic acid and ammonium carbonate or ammonium hydroxide.^[3]

Physical properties

The compound forms yellow-white powder.

Soluble in methanol and ethanol; slightly soluble in water, benzene, xylene, naphtha; practically insoluble in acetone.^[4]

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

Uses

The compound is used to produce vanishing creams^[5] and waterproofing cements.^[6]^[7]

References

↑ "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.
↑ Milne, G. W. A. (19 August 2005). Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties. John Wiley & Sons. p. 36. ISBN 978-0-471-73661-5. 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.

[1] "AMMONIUM STEARATE" (PDF). cameochemicals.noaa.gov. Retrieved 18 March 2025.

[2] "Ammonium Stearate | The Merck Index Online". merckindex.rsc.org. Retrieved 18 March 2025.

[3] 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.

[4] Milne, G. W. A. (19 August 2005). Gardner's Commercially Important Chemicals: Synonyms, Trade Names, and Properties. John Wiley & Sons. p. 36. ISBN 978-0-471-73661-5. Retrieved 18 March 2025.

[5] 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.

[6] 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.

[7] 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.

[1]

[2]

[3]

[4]

[5]

[6]

[7]