Nickel(II) stearate

Nickel(II) stearate

Names
Other names Nickel distearate, nickel dioctadecanoate, nickel(2+) octadecanoate
Identifiers
CAS Number	2223-95-2^Y
3D model (JSmol)	Interactive image
ChemSpider	141143
ECHA InfoCard	100.017.041
EC Number	218-744-1
PubChem CID	160624
CompTox Dashboard (EPA)	90890558
InChI InChI=1S/2C18H36O2.Ni/c2*1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18(19)20;/h2*2-17H2,1H3,(H,19,20);/q;;+2/p-2 Key: JMWUYEFBFUCSAK-UHFFFAOYSA-L
SMILES CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Ni+2]
Properties
Chemical formula	C 36H 70NiO 4
Molar mass	625.63
Appearance	green powder
Density	1.13 g/cm^3
Melting point	100 °C (212 °F; 373 K)
Boiling point	359.4 °C (678.9 °F; 632.5 K)
Solubility in water	insoluble
Hazards
GHS labelling:
Pictograms
Signal word	Danger
Hazard statements	H317, H334, H341, H350, H360, H372, H410
Flash point	162.4 °C (324.3 °F; 435.5 K)
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). Infobox references

Nickel(II) stearate is a metal-organic compound, a salt of nickel and stearic acid with the chemical formula C
₃₆H
₇₀NiO
₄.^[1][2] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid.^[3] The compound is harmful if swallowed and may cause skin sensitization.^[4]

Synthesis

An exchange reaction of sodium stearate and nickel dichloride:

${\displaystyle {\mathsf {NiCl_{2}+2C_{17}H_{35}COONa\ {\xrightarrow {}}\ Ni(C_{17}H_{35}COO)_{2}\downarrow +2NaCl}}}$

Physical properties

Nickel(II) stearate forms a green powder.^[5]

The compound is insoluble in water, methanol, ethanol, or ether, soluble in carbon tetrachloride and pyridine, slightly soluble in acetone.

Uses

The compound is used as a lubricant and in various industrial applications.

References

1. "Nickel(II) stearate". Sigma Aldrich. Retrieved 28 February 2023.
2. "Nickel(II) Stearate". American Elements. Retrieved 28 February 2023.
3. "Nickel(II) stearate | CAS 2223-95-2". Santa Cruz Biotechnology. Retrieved 28 February 2023.
4. User guide and indices to the initial inventory, substance name index. U.S. Government Printing Office. 1979. p. 998. Retrieved 28 February 2023.
5. "Nickel(II) stearate - Hazardous Agents | Haz-Map". haz-map.com. Retrieved 28 February 2023.