Overview
High-purity isododecane is a synthetic hydrocarbon derived from petroleum refining or Fischer-Tropsch synthesis. Its branched-chain structure imparts unique properties, such as low surface tension and high stability, making it indispensable in formulations requiring lightweight, non-greasy textures. It is widely adopted in cosmetics for its ability to enhance spreadability without leaving residue. Unlike linear alkanes, isododecane’s isomerization reduces crystallization risks, ensuring smooth application in skincare and makeup products. Its industrial applications include use as a solvent in paints, adhesives, and specialty coatings due to its rapid evaporation and compatibility with polymers.
Physical and Chemical Properties
Isododecane is characterized by a low viscosity (≈1.5 mPa·s at 25°C) and a high evaporation rate, which facilitates quick-drying formulations. Its density is slightly lower than water, and it exhibits negligible solubility in aqueous systems, making it ideal for oil-based products. The chemical inertness of isododecane ensures compatibility with sensitive ingredients, such as silicones and UV filters, without inducing degradation. Its flash point (≈60°C) classifies it as a flammable liquid, necessitating careful storage and handling to prevent combustion hazards.
Main Applications
In cosmetics, isododecane serves as a key ingredient in long-wear foundations, waterproof sunscreens, and lipsticks, where it improves texture and longevity. Its volatility allows for lightweight feel without compromising performance. Industrially, it functions as a solvent for resins and waxes in coatings, and as a carrier fluid in lubricant additives. Its low odor and high purity also make it suitable for electronic cleaning applications, where residue-free evaporation is critical.
Safety and Storage
Isododecane is generally regarded as safe for topical use in regulated concentrations but requires proper ventilation during industrial handling to avoid vapor accumulation. Personal protective equipment (PPE) such as gloves and goggles is recommended. Storage should prioritize sealed containers in cool environments (<30°C) to prevent oxidation or contamination. Bulk shipments must comply with transportation regulations for flammable liquids, including UN certification for packaging.
B2B Procurement Guide
When sourcing isododecane, prioritize suppliers with certifications like ISO 9001 and GMP to ensure quality control. Request certificates of analysis (CoA) for parameters like purity, heavy metals, and moisture content. Negotiate pricing based on volume commitments, as large-scale purchases (e.g., >1 ton) often reduce costs by 10–20%. Consider regional logistics to minimize lead times, especially for just-in-time production schedules.
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