Copper(II) oleate is a blue to green solid; can be prepared by reacting the acid with CuO or basic carbonate of Cu; coalesces mercury drops; improves oil combustion by reducing smoke and fumes of burning oil; used as textile fungicide, used in antifouling marine paints [MER06].
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In antifouling compositions; as emulsifier and dispersing agent; as antioxidant in lubricating oils; as combustion-improver in fuel oils; as stabilizer for amide polymers; as catalyst.
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Copper(II) oleate is produced by the precipitation reaction of copper(II) sulfate solutions with sodium oleate. It is insoluble in water. The product of commerce contains between 6% and 9% copper. Copper(II) oleate is used as an emulsifier and dispersant for the control of mildew and as a combustion improver in fuel oils.
Purification Methods
Crystallise it from diethyl ether. [Beilstein 2 H 465, 2 I 196, 2 I202, 2 II 436, 2 III 1404, 2 IV 1646.]
Toxicity evaluation
Toxicity of Copper(II) oleate was demonstrate in experiments on S.mansoni cercariae. 1 mL of Copper(II) oleate (20% in ether) was put in a tet tube containing 10 mL of aerated tap water. Test tubes were allowed to stand for 30 minutes with occasional shaking. The water was then poured off and filtered. 1 mL of filtrate from each tube was placed in a separate Syracuse watch glass. Water saturated with copper oleate killed all the cercariae in 30 minutes.
