Iron Octoate 8% Fe CAS 7321-53-1 Cobalt‑Free Primary Drier for Pale Alkyd System
Iron Octoate 8% Fe CAS 7321‑53‑1 is liquid iron 2‑ethylhexanoate primary drier containing 8% iron metal content. As a cobalt‑free main drier alternative, it initiates oxidative curing reaction of alkyd resins. It features relatively mild discoloration tendency compared with traditional cobalt driers, making it suitable for pale and light‑colored alkyd formulations. Combined with zinc, barium and other auxiliary driers, it achieves matched surface drying and deep‑layer through‑curing. Widely appl
Product Overview
Iron Octoate 8% Fe CAS 7321‑53‑1 belongs to octoate‑series metal carboxylate primary drier for air‑drying alkyd coating systems. It serves as main oxidative drier instead of cobalt‑based driers. Traditional cobalt driers may cause obvious pink‑toned discoloration for white and pale coatings. This iron‑based primary drier reduces such color interference while driving resin oxidative cross‑linking. It shall be used together with anti‑skinning and through‑curing auxiliary driers to balance surface drying speed and inner‑layer curing completeness. It dissolves freely in aliphatic and aromatic hydrocarbon solvents, exhibits good compatibility with long‑oil and medium‑oil alkyd resins, and maintains stable performance in finished paint storage and industrial batch‑to‑batch production.
Key Features
‑ 8% standard iron content for stable cobalt‑free primary curing activity ‑ Cobalt‑free formulation, meets restriction requirements for cobalt‑containing coating materials ‑ Suitable for pale alkyd systems, lower discoloration risk versus conventional cobalt driers ‑ Initiates oxidative cross‑linking reaction for air‑drying alkyd resin systems ‑ Works cooperatively with zinc, barium, strontium and other auxiliary driers ‑ Balances surface drying and through‑curing performance in matched drier packages ‑ Good solubility in mineral spirits, xylene and general coating hydrocarbon solvents ‑ Reliable batch‑to‑batch consistency for cobalt‑free light‑color alkyd paint manufacturing
Technical Specifications
‑ Product Name: Iron Octoate (Iron 2‑Ethylhexanoate) ‑ Iron Content: 8% Fe ‑ CAS No.: 7321‑53‑1 ‑ Appearance: Dark reddish‑brown transparent liquid ‑ Solubility: Soluble in aliphatic, aromatic hydrocarbon solvents and alkyd resins ‑ Density: 0.95‑1.01 g/cm³ @25℃ ‑ Viscosity: Low‑viscosity liquid ‑ Flash Point: ≥60℃ ‑ Moisture: ≤0.2%
Application Scenarios
‑ Cobalt‑free pale and light‑colored solvent‑borne alkyd coating systems ‑ White and transparent alkyd varnish and decorative light‑shade enamels ‑ Long‑oil and medium‑oil air‑dry alkyd industrial finishing paints ‑ Formulations subject to cobalt‑substance regulatory limitation ‑ Composite drier system matched with zinc, barium and other auxiliary driers
Usage Recommendation
‑ Typical dosage: 0.10%‑0.40% calculated on total paint weight (as metal iron) ‑ Premix thoroughly with zinc, barium or other auxiliary driers before adding into coating formula ‑ Do not add during high‑temperature resin synthesis procedure ‑ Cannot obtain ideal curing performance when used alone, auxiliary driers are required ‑ Adjust dosage according to surface‑drying speed, through‑curing and color‑stability test results ‑ Pay close attention to final film color change; complete full‑set laboratory assessment before mass‑scale production
Package & Storage
‑ Standard package: 25kg / 200kg metal drum ‑ Store in cool, dry and well‑ventilated warehouse, keep away from heat source and open flame ‑ Tightly seal container after opening to prevent solvent volatilization and performance deterioration ‑ Shelf life: 12 months under proper storage conditions
Safety Notes
‑ Combustible liquid, keep away from all ignition sources. ‑ Avoid skin contact and eye splash. Wear chemical‑resistant gloves and safety goggles during handling. ‑ Avoid inhalation of vapor and mist, ensure effective local ventilation. ‑ Refer to SDS for full guidance on handling, transportation and emergency disposal.
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