Copper salt (AI-61R): a versatile agent serving as both an efficient polymerization inhibitor and an industrial additive

1. Product OverviewCopper salt (AI-61R), with the chemical name of copper N,N-di-n-butyldithiocarbamate, is an important organic copper compound. It is renowned in thechemical industry for its excellent polymerization inhibition performance and wideapplication as an auxiliary agent, and is an indispensable key raw material in theproduction of acrylate monomers.

Basic information:Chemical name: Copper(II) N,N-di-n-butyldithiocarbamateTrade names: Copper Salt (AI-61R), CDBCCAS number: 13927-71-4Molecular formula: C₁₆H₃₆CuN₂S₄Molecular weight: approximately 472.3Appearance: Dark brown powdered solidII. Physicochemical propertiesCopper salt (AI-61R) exhibits the following typical physicochemical properties:Appearance and Characteristics: Greyish-brown to dark brown powderMelting point: 73.0~76.0℃Content: ≥95.0%Ash content: ≤20.0%Loss on drying: ≤0.5%Solubility: Insoluble in water, easily soluble in organic solvents such as acetoneand butyl acetateStability: Decomposes in the presence of acid, but remains stable under normalstorage conditionsIII. Core application areas1. Acrylate monomer polymerization inhibitorThis is the primary application area of copper salt (AI-61R). Acrylic acid and its estercompounds are prone to self-polymerization due to their active carbon-carbon doublebonds, posing safety hazards during production, storage, and transportation. Mechanism of action: AI-61R quenches active chain radicals through electrontransfer, effectively terminating the polymerization reaction. Its copper complexstructure can act as a radical trapper, rapidly binding to active radicals in thesystem to prevent unwanted chain polymerization reactions of unsaturatedolefins. Applicable monomer:butyl acrylateOctyl acrylateHigh-carbon methacrylateOther unsaturated olefin monomersIn industrial production, AI-61R is often used in combination with otherpolymerization inhibitors (such as phenothiazine and nitroxyl radicals) to form asynergistic polymerization inhibition system, significantly enhancing the safety andproduct yield of the distillation refining process.

2. Screen printing ink additiveCopper salt (AI-61R) is used as a functional additive in screen printing ink, capable ofimproving various properties of the ink:Improve the storage stability of ink and prevent gelationImprove the adhesion and wear resistance of inkAdjust the drying speed of the ink to meet the requirements of screen printing process

3. Other applicationsMetal surface treatment: It can be used as a metal corrosion inhibitor andsurface treatment agent, with applications in fields such as electroplating andelectrochemical depositionBactericidal and antifungal: It has antibacterial and fungicidal effects and can beused as an agricultural bactericide and antifungal agentSynthetic material additives: serving as protective and stabilizing agents forplastic products, enhancing the aging resistance of materialsIV. Product Advantages1. Efficient polymerization inhibition: It exhibits excellent polymerizationinhibition effect on acrylate monomers, with high efficiency despite low dosage2. Good solubility: It has good solubility in organic solvents, facilitating industrialaddition and dispersion3. Excellent stability: Under normal process conditions, it maintains stableperformance and does not affect the quality of the final product4. Wide application: not limited to polymerization inhibitors, but also extendable tomultiple fields such as inks, coatings, plastics, etcV. Safety and StoragePackaging: Typically, it is packaged in 25kg drums or bagsStorage: It should be stored in a cool, dry, well-ventilated warehouse, away fromsources of ignition and acidic substancesPrecautions: Avoid contact with strong acids to prevent decomposition; duringoperation, pay attention to personal protection and avoid direct contact with skinand eyes

Copper salt (AI-61R), as a classic copper dithiocarbamate compound, plays asignificant role in various fields such as organic chemical industry, printing inks, andmaterial protection, owing to its unique chemical structure and excellent performance.It is an indispensable functional chemical in the modern fine chemical industry chain.