Product Brief‑ Isododecane
CAS No: 31807‑55‑3（isomer mixture）；Single‑isomer：13475‑82‑6 (2,2,4,6,6‑Pentamethylheptane)
EINECS: 251‑754‑4
Synonyms: Iso‑dodecane, branched C12 isoparaffin, Permethyl 99A, Fancol ID
Molecular Formula: C₁₂H₂₆
Molecular Weight: 170.34
Basic Information
Isododecane is a high‑purity branched‑chain isoparaffin hydrocarbon, mixture of C12 alkane isomers. It is aromatic‑free, sulphur‑free, low‑odour volatile solvent. It features fast‑evaporating, non‑greasy skin feel, excellent compatibility with silicones, oils & waxes. Widely used in personal‑care cosmetics, industrial cleaning, aerosol formulations and special‑process solvents.
Physico‑Chemical Properties
Appearance: Colorless transparent volatile liquid, almost odourless
Density (20 ℃): 0.74‑0.75 g/cm³
Boiling range: 170‑195 ℃
Melting point: ‑81 ℃
Flash point (closed cup): 45‑50 ℃Refractive index nD20: 1.418‑1.422
Viscosity (25 ℃): 1.7‑2.0 mm²/s
Solubility: Immiscible with water; miscible with hydrocarbons, esters, ethers, silicones
Stability: Chemically inert; stable under normal conditions; avoid strong oxidizing agents
Quality Specification (Cosmetic / Industrial Grade)
| Test Items | Specification |
|---|---|
| Appearance | Colorless clear liquid |
| Isododecane (GC) | ≥99.0 % |
| Aromatics content | ≤100 ppm |
| Sulfur content | ≤1 ppm |
| Moisture | ≤0.05 % |
| Color (APHA) | ≤10 |
| Distillation range | 170‑195 ℃ (95 % distillate) |
Note: Cosmetic‑grade meets INCI requirement; industrial cleaning grade with relaxed index available upon request.
Application & Uses
Cosmetic & personal‑care: Volatile emollient & solvent for mascara, eyeliner, lipstick, sunscreen, makeup remover, hair sprays; silicone alternative, delivers dry non‑oily touch.
Industrial cleaning solvent: Low‑odour fast‑dry cleaning agent for precision parts, electronic components.
Aerosol formulations: Solvent carrier for aerosol sprays.
Special synthesis: Reaction medium for polymerization; carrier solvent for additives.
Used as diluent for silicone oil, perfumery raw material solvent.
Packaging
‑ Standard export: 170 kg / 200 kg net steel drum.
‑ Bulk: 1000 L IBC tote tank; ISO tank container for large volume.
‑ Marking: Product name, CAS No., batch No., production date, gross/net weight.
Storage & Transportation
‑ Hazard classification: UN 2286, Class 3 Flammable liquid, Packing Group III；H226 Flammable liquid and vapour; H304 May be fatal if swallowed and enters airways.
‑ Transportation: Comply with IMDG / IATA. Keep drums tightly sealed. Keep away from heat, ignition sources and direct sunlight. Do not ship together with strong oxidants. Prevent leakage.‑ Storage: Store in cool, dry, well‑ventilated warehouse. Keep container tightly closed. Temperature below 30 ℃. Separated storage from oxidizing agents. Ground equipment for anti‑static protection.
‑ Shelf‑life: 24 months under original sealed packaging.
‑ Handling reminder: Operate under good ventilation; wear chemical‑resistant gloves, safety goggles. Avoid breathing vapour. Prevent static electricity accumulation.
- Disclaimer: All above data represent typical values only, not product warranty. End‑users shall verify suitability for their own process.
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