Cobalt 2‑Ethylhexanoate 8% Co Oil‑Soluble CAS 136-52-7 for Long Oil Alkyd and Oil Paint
Cobalt 2‑Ethylhexanoate 8% Co CAS 136‑52‑7 is an oil‑soluble cobalt‑based primary drier. Formulated with 8% cobalt metal content, it exhibits outstanding miscibility with long oil alkyd resins and air‑drying oil paint. It catalyzes oxidative cross‑linking to speed up surface drying of coating films, delivering balanced curing speed and good storage stability for general industrial and decorative paint formulations.
Product Overview
Cobalt 2‑Ethylhexanoate 8% Co CAS 136‑52‑7 is an oil‑soluble metal carboxylate drier specially optimized for long oil alkyd and oil paint systems. It functions as a primary surface drier to trigger oxidative polymerization of unsaturated resin molecules once the coating film exposes to air. The 8% cobalt concentration provides medium‑fast drying activity, well balanced to avoid over‑crazing or wrinkling on paint surface. It mixes homogeneously with alkyd resins and hydrocarbon solvents, maintaining consistent catalytic performance throughout batch production.
Key Features
‑ 8% cobalt metal content, moderate and controllable surface drying activity ‑ Good oil‑solubility, perfect compatibility with long oil alkyd resins ‑ Accelerates oxidative surface curing for air‑drying oil paint ‑ Low tendency toward surface wrinkling compared with higher cobalt grade ‑ Stable catalytic property under normal storage condition ‑ Can be compounded with zirconium, calcium and other auxiliary driers ‑ Suitable for large‑batch manufacturing of long‑oil alkyd‑based products ‑ Reliable batch‑to‑batch consistency for industrial coating production
Technical Specifications
‑ Product Name: Cobalt 2‑Ethylhexanoate (Cobalt Octoate) ‑ Cobalt Content: 8% Co ‑ CAS No.: 136‑52‑7 ‑ Appearance: Reddish‑brown transparent liquid ‑ Solubility: Soluble in mineral spirits, xylene and various alkyd resins ‑ Density: 0.96‑1.06 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ Long oil alkyd coatings: decorative alkyd paint, alkyd varnish ‑ Air‑drying oil paint and oleoresinous coatings ‑ General‑purpose industrial enamel and wood finishing paint ‑ Solvent‑borne anti‑corrosion paint based on long‑oil alkyd ‑ Formulated together with through‑drying auxiliary driers to realize full‑film curing
Usage Recommendation
‑ Typical dosage: 0.1%‑0.5% based on total paint weight (calculated as metal cobalt) ‑ Premix with other drier components before adding into paint formula ‑ Do not add during high‑temperature resin synthesis procedure ‑ Combine with zirconium or calcium drier to improve through‑dry performance ‑ Adjust dosage according to resin oil length, film thickness and drying requirement ‑ Complete laboratory formulation test prior to mass production
Package & Storage
‑ Standard package: 25kg / 200kg metal drum ‑ Store in cool, dry, well‑ventilated warehouse, keep away from heat source and open flame ‑ Tightly seal container after opening to prevent solvent evaporation and oxidation ‑ Shelf life: 12 months under appropriate storage conditions
Safety Notes
‑ Combustible liquid, keep away from ignition sources. ‑ Avoid skin contact and eye splash. Wear chemical‑resistant gloves and safety goggles during operation. ‑ Avoid breathing vapor and mist, ensure sufficient local ventilation. ‑ Refer to corresponding SDS for full guidance on handling, transportation and emergency measures.
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