Chemistry:Mercury(II) stearate

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Mercury(II) stearate
Mercury stearate.svg
Names
Other names
Mercuric stearate, mercury distearate, mercury dioctadecanoate
Identifiers
3D model (JSmol)
ChemSpider
EC Number
  • 211-458-8
UNII
Properties
C36H70HgO4
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)
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
Tracking categories (test):

Mercury(II) stearate is a metal-organic compound, a salt of mercury and stearic acid with the chemical formula C36H70HgO4.[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:

[math]\displaystyle{ \mathsf{ HgCl_2 + 2C_{17}H_{35}COONa \ \xrightarrow{}\ Hg(C_{17}H_{35}COO)_2\downarrow + 2 NaCl } }[/math]

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]

References