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The compound is stable and non-reactive under normal conditions.<ref>{{cite web |title=SAFETY DATA SHEET |url=http://cdn.chemservice.com/product/msdsnew/External/English/NG-S99%20English%20SDS%20US.pdf |publisher=chemservice.com |access-date=14 February 2023}}</ref> |
The compound is stable and non-reactive under normal conditions.<ref>{{cite web |title=SAFETY DATA SHEET |url=http://cdn.chemservice.com/product/msdsnew/External/English/NG-S99%20English%20SDS%20US.pdf |publisher=chemservice.com |access-date=14 February 2023}}</ref> |
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When trying to ignite, copper stearate first melts and then begins to burn with a green (at the base) flame, then it quickly turns black due to the formation of [[cupric oxide]]: |
When trying to ignite, copper stearate first melts and then begins to burn with a green (at the base) flame, then it quickly turns black due to the formation of [[cupric oxide]]: |
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:{{chem2 | (C17H35CO2)2 + 5 O2 -> CuO↓ + 36 CO2↑ + 35 H2O↑ }} |
:{{chem2 | (C17H35CO2)2 + 5 O2 -> CuO↓ + 36 CO2↑ + 35 H2O↑ }} |
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Revision as of 03:13, 27 November 2025
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| Names | |
|---|---|
| Other names
copper(2+) dioctadecanoate, cupric stearate, copper distearate[1]
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| Identifiers | |
| ChemSpider | |
| ECHA InfoCard | 100.010.493 |
| EC Number | |
| UNII | |
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| Properties | |
| Cu(C17H35COO)2 | |
| Molar mass | 630.48 |
| Appearance | blue-green amorphous substance |
| Density | 1.10 g/cm3 |
| Boiling point | 250 °C (482 °F; 523 K) |
| insoluble | |
| Hazards | |
| GHS labelling: | |
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| Warning | |
| H315, H319, H335 | |
| P261, P280, P305, P338, P351 | |
| Related compounds | |
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Related compounds |
Mercury(II) stearate, Cobalt(II) stearate |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Copper(II) stearate is a metal-organic compound, a salt of copper and stearic acid with the formula Cu(C17H35COO)2.[2][3] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.
Synthesis
Exchange reaction of sodium stearate and copper sulfate:[4][5]
- CuSO4 + 2 C17H35O2Na → Cu(C17H35O2)2↓ + Na2SO4
Physical properties
Copper(II) stearate forms a blue-green amorphous substance[6] similar to plasticine both in appearance and touch.
Insoluble in water, ethanol, or ether; soluble in pyridine.[7]
Chemical properties
The compound is stable and non-reactive under normal conditions.[8]
When trying to ignite, copper stearate first melts and then begins to burn with a green (at the base) flame, then it quickly turns black due to the formation of cupric oxide:[9]
- (C17H35CO2)2 + 5 O2 → CuO↓ + 36 CO2↑ + 35 H2O↑
Uses
The compound is used in the production of antifouling paint and varnish materials.
Also used as a component in casting bronze sculptures.[10]
Also applies as a catalyst for the decomposition of hydroperoxides.[11]
