Mercury(II) stearate

Names
Other names Mercuric stearate, mercury distearate, mercury dioctadecanoate
Identifiers
CAS Number	645-99-8 Y
3D model (JSmol)	Interactive image
ChemSpider	62735
ECHA InfoCard	100.010.418
EC Number	211-458-8
PubChem CID	69531
UNII	AZ2X2WK6RN
CompTox Dashboard (EPA)	70214758
InChI InChI=1S/2C18H36O2.Hg/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: RRFMRVBJWLMSAB-UHFFFAOYSA-L
SMILES CCCCCCCCCCCCCCCCCC(=O)[O-].CCCCCCCCCCCCCCCCCC(=O)[O-].[Hg+2]
Properties
Chemical formula	C 36H 70HgO 4
Molar mass	767.529
Appearance	yellow wax
Melting point	112.2 °C (234.0 °F; 385.3 K)
Boiling point	359.4 °C (678.9 °F; 632.5 K)
Solubility in water	insoluble[1]
Solubility	Soluble in fatty oils[1]
Hazards
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

Mercury(II) stearate is a metal-organic compound, a salt of mercury and stearic acid with the chemical formula C
₃₆H
₇₀HgO
₄.^[2] The compound is classified as a metallic soap, i.e. a metal derivative of a fatty acid. The compound is highly toxic by inhalation, ingestion, and skin absorption.^[1]

Synthesis

An exchange reaction of sodium stearate and mercury dichloride:

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

Also, heating mercurious oxide with stearic acid.^[3]

Physical properties

The compound forms yellow waxy substance.^[4]

Uses

It is used as a germicide^[1] and as a plasticizer in the production of ceramics.^{[citation needed]}