660-60-6

Basic information

• Product Name: Cupric stearate
• Synonyms: Octadecanoic acid copper(2+) salt;copperdistearate,pure;Copper distearate;COPPER STEARATE;COPPER(II) STEARATE;CUPRIC STEARATE;STEARICACID,COPPER(2+)SALT;Bis(stearic acid)copper(II) salt
• CAS NO: 660-60-6
• Molecular Formula: 2C₁₈H₃₅O₂*Cu
• Molecular Weight: 630.48
• EINECS: 211-540-3
• Mol File: 660-60-6.mol
• Article Data: 16

Chemical Properties

• Melting Point: ~250°: Grant, Can. J. Chem. 42, 951 (1964)
• Appearance: /blue-green amorphous powder
• Density: 1.100
• Storage Temp.: Inert atmosphere,Room Temperature
• Solubility: Acidic Methanol (Slightly)
• Water Solubility: insoluble H2O, ethanol, ether; solublepyridine, dioxane [MER06]
• CAS DataBase Reference: Cupric stearate(CAS DataBase Reference)
• NIST Chemistry Reference: Cupric stearate(660-60-6)
• EPA Substance Registry System: Cupric stearate(660-60-6)

Safety Data

• Hazardous Substances Data: 660-60-6(Hazardous Substances Data)

Usage

Description

Cupric stearate, also known as copper(II) stearate, is a light-blue powdery compound derived from the reaction of stearic acid with copper. It is characterized by its solubility in various organic solvents and its combustibility. Cupric stearate is known for its versatile applications across different industries due to its unique chemical properties.

Uses

Used in Antifouling Paints:
Cupric stearate is used as an additive in antifouling paints to prevent the growth of marine organisms on the surfaces of boats and other underwater structures. Its effectiveness in inhibiting biofouling is attributed to its ability to leach out of the paint and create an unfavorable environment for the attachment and growth of marine life.
Used in Textile and Wood Preservatives:
In the textile and wood preservation industries, cupric stearate is utilized as a fungicide and bactericide. It helps protect fabrics and wooden materials from microbial degradation, thereby extending their lifespan and maintaining their quality.
Used in Rubber Aging:
Cupric stearate is employed as an additive in the rubber industry to enhance the aging properties of rubber products. It acts as an antioxidant, preventing the oxidative degradation of rubber and improving its overall durability and performance.
Used as a Catalyst:
Cupric stearate is also used as a catalyst in various organic synthesis processes. Its catalytic activity is attributed to the presence of copper ions, which facilitate chemical reactions and improve the efficiency of the synthesis.
Used in Organic Synthesis:
Copper(II) stearate is a compound that finds utility in organic synthesis, where it serves as a precursor or a catalyst for various chemical reactions. Its unique chemical properties make it a valuable component in the synthesis of complex organic molecules.

Preparation

Copper(II) stearate (octadecanoate) is prepared by the reaction of copper(II) sulfate solutions with sodium stearate. It is insoluble in water. It is used as a fungicide and algicide for wood and textiles and as an antifouling pigment in paints. It is marketed as a 10% copper solution in an organic solvent.

InChI:InChI=1/8C10H20O2.Cu/c8*1-2-3-4-5-6-7-8-9-10(11)12;/h8*2-9H2,1H3,(H,11,12);/q;;;;;;;;+2

Upstream product

• 12775-96-1 copper 
• 57-11-4 stearic acid 
• 20427-59-2 copper hydroxide 
• 593-29-3 potassium stearate 
• 7758-99-8 copper(II) sulfate 
• 822-16-2 sodium stearate 
• 6046-93-1 copper(II) acetate monohydrate 
• 142-71-2 copper diacetate 

Downstream Products

• 637-54-7 N-phenylstearamide 

Relevant articles and documents

Electrochemical synthesis and: In vitro cytotoxicity study of copper(ii) carboxylates with different fatty acid alkyl chain lengths

In the present study, an electrochemical technique based on the release of Cu2+ ions from a Cu anode in the presence of unsaturated fatty acids with different alkyl chain lengths has been used to synthesize Cu(ii) carboxylates. The fatty acids used in this study are lauric acid (C12:0) and stearic acid (C18:0). Optimum electrolysis conditions for the synthesis of Cu(ii) laurate (CuLa2) and Cu(ii) stearate (CuSt2) have been determined to maximize percentage yield and minimize energy consumption and loss of the Cu anode. We observe that both compounds (99.21%) are produced with lower energy consumption (～21.01 W h L-1) and anode loss (～0.57 mg L-1) by using the same optimum conditions of 10 V of applied voltage for 4 hours of electrolysis time in 0.1 M CH3COONH4 electrolyte solution. The cytotoxicity study on selected tumor cells (A549 and HeLa) shows that the synthesized compounds have moderate cytotoxic effects with IC50 in the range from 19.50 to 44.67 μM. CuLa2 with C12 alkyl chains provides better cytotoxicity effect on the selected tumor cells due to lower IC50 than CuSt2 with C18 alkyl chains. This shows that the length of alkyl chain also affects the compound toxicity towards selected tumor cells.

Ligand chain length conveys thermochromism

Thermochromic properties of a series of non-ionic copper compounds have been reported. Herein, we demonstrate that Cu(ii) ion with straight-chain primary amine (A) and alpha-linolenic (fatty acid, AL) co-jointly exhibit thermochromic properties. In the current case, we determined that thermochromism becomes ligand chain length-dependent and at least one of the ligands (A or AL) must be long chain. Thermochromism is attributed to a balanced competition between the fatty acids and amines for the copper(ii) centre. The structure-property relationship of the non-ionic copper compounds Cu(AL) 2(A)2 has been substantiated by various physical measurements along with detailed theoretical studies based on time-dependent density functional theory. It is presumed from our results that the compound would be a useful material for temperature-sensor applications. This journal is the Partner Organisations 2014.

Synthesis and self-assembly of triangular Cu2-xSe nanocrystals

High quality triangular Cu2-xSe nanocrystals were successfully synthesized through a green phosphine free route by the non-injection one-pot colloidal approach with Se-octadecene (ODE) as a precursor. CuSt2 was used as reactant and oleylamine (OAM) was used as reaction solvent. By using this new non-injection method, triangle shaped Cu2-xSe nanocrystals with sizes ranging from 2.8 to 12 nm were achieved by simply controlling the reaction time. Transmission electron microscopy (TEM) and high resolution TEM (HRTEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and energy dispersive X-ray (EDX) measurements were used to characterize as-synthesized nanocrystals. Cubic berzelianite crystal phase and narrow size distributions were demonstrated by the results. Additionally, the narrow size distribution promoted as-synthesized Cu2-xSe nanocrystals self-assembled into ordered superstructures with the assistance of OAM.