Product Name: Isododecane
Chemical Family: Aliphatic hydrocarbon
Chemical Formula: C12H26
Synonyms: Branched Alkanes, C12; Isoalkanes C12
CAS Number: 31807-55-3
Intended Use: Used as a solvent in cosmetics, personal care products, hydrocarbon blends, and industrial cleaning agents
Manufacturer Contact: [Consult supplier for specific company data]
Emergency Phone: [Refer to supplier’s emergency contact listing or CHEMTREC]
Classification (GHS): Flammable Liquid (Category 2); Aspiration Hazard (Category 1); Specific Target Organ Toxicity – Single Exposure (Category 3, Central Nervous System)
Signal Word: Danger
Hazard Statements: Highly flammable liquid and vapor. May be fatal if swallowed and enters airways. May cause drowsiness or dizziness.
Pictograms: Flame, Health Hazard, Exclamation Mark
Precautionary Statements: Keep away from heat, sparks, open flames. Avoid breathing vapors. Use outdoors or in well-ventilated area. Wear protective gloves, clothing, and eye protection.
Chemical Name: Isododecane
Concentration: ≥ 98% by weight
Impurities: May contain trace amounts of other C12 and lower/higher hydrocarbons (≤ 2%)
CAS Number: 31807-55-3
EC Number: 250-816-8
Molecular Weight: 170.33 g/mol
Inhalation: Remove person to fresh air; keep at rest and warm. Get medical attention if symptoms persist such as headache, dizziness, or nausea.
Skin Contact: Remove contaminated clothing. Wash skin with mild soap and water; seek medical advice if irritation or redness continues.
Eye Contact: Rinse cautiously with water for several minutes. Remove contact lenses if present and easy to do, continue rinsing. Obtain medical assistance for persistent irritation.
Ingestion: Do not induce vomiting. Call poison control center or seek immediate medical help. If vomiting occurs, keep head low so that vomit does not enter lungs.
Most Important Symptoms: Drowsiness, dizziness, dry or cracked skin, respiratory irritation, risk of chemical pneumonia if aspirated into lungs.
Extinguishing Media: Use foam, dry chemical, or carbon dioxide. Water spray may be used to cool containers.
Unsuitable Media: Direct water stream can spread fire.
Hazards Arising: Vapors form explosive mixtures with air. Hazardous combustion products include carbon monoxide, carbon dioxide, and possibly unburned hydrocarbons.
Protective Equipment: Firefighters require self-contained breathing apparatus and full protective gear.
Specific Methods: Move containers from fire area if safe. Dike runoff for later disposal. Remain upwind and avoid inhalation of combustion vapors.
Personal Precautions: Remove all sources of ignition. Evacuate non-essential personnel. Ensure proper ventilation.
Protective Equipment: Wear chemical-resistant gloves, safety goggles, and impervious clothing.
Environmental Precautions: Prevent entry into drains, sewers, or water courses. Notify authorities if significant spill occurs.
Methods for Containment: Contain spill with inert absorbent material such as sand, earth, or vermiculite.
Cleaning Up: Collect and place in suitable chemical waste container. Dispose in accordance with local and national regulations.
Additional Advice: Use spark-proof tools and explosion-proof equipment. Ventilate area after cleanup.
Handling: Use only in well-ventilated places. Avoid breathing vapors or contact with skin and eyes. Ground and bond container during product transfer.
Technical Measures: Install local exhaust ventilation to control vapor exposure. No open flames, no smoking, keep away from electrical sources.
Safe Storage: Store in tightly closed original container in a cool, dry, well-ventilated place. Keep away from heat, sparks, flames, and incompatible materials such as oxidizers.
Incompatible Materials: Strong oxidizing agents, acids, or alkalis.
Exposure Guidelines: No occupational exposure limits set for Isododecane. Use workplace monitoring and good industrial hygiene practices.
Engineering Controls: Local exhaust or general ventilation to maintain vapor concentration below recommended levels.
Respiratory Protection: Use an approved organic vapor respirator if exposures are high or ventilation is inadequate.
Skin Protection: Nitrile or neoprene chemical-resistant gloves. Long-sleeved clothing.
Eye/Face Protection: Safety goggles or face shield to prevent eye contact.
Hygiene Measures: Always wash hands with soap and water before eating, drinking, and after handling.
Appearance: Clear, colorless liquid
Odor: Mild, paraffinic hydrocarbon smell
Odor Threshold: Not established
pH: Not applicable
Melting Point: -10°C to -12°C
Boiling Point: 158°C to 176°C
Flash Point: 43°C (Closed cup)
Evaporation Rate: Moderate
Flammability (solid, gas): Flammable liquid
Upper/Lower Flammability: 0.6% – 5.5% (v/v in air)
Vapor Pressure: 1.3 kPa @ 25°C
Vapor Density: >1 (air=1)
Relative Density: 0.75 g/cm³ @ 20°C
Solubility: Insoluble in water
Partition Coefficient (n-octanol/water): log Pow ≈ 6
Auto-ignition Temperature: 265°C
Decomposition Temperature: No data
Viscosity: 1.1 – 1.6 cSt at 40°C
Chemical Stability: Stable under normal storage and handling conditions.
Reactivity: Not chemically reactive with most materials.
Hazardous Reactions: Strong oxidizers can cause exothermic reaction.
Conditions to Avoid: Heat, open flame, spark, static discharge, extreme temperatures.
Hazardous Decomposition Products: Carbon oxides, possibly low levels of unburned aldehydes and hydrocarbons.
Polymerization: Will not occur.
Routes of Exposure: Inhalation, skin and eye contact, ingestion.
Acute Toxicity: Oral LD50 (rat) > 5000 mg/kg. Inhalation LC50 (rat, 4hr) > 5000 ppm.
Skin Corrosion/Irritation: Not classified as irritating, but repeated/prolonged contact may dry skin.
Serious Eye Damage/Eye Irritation: Minimal and transient effects possible.
Respiratory Sensitization: Not classified.
Skin Sensitization: No sensitizing effects reported.
Carcinogenicity: Not classifiable as carcinogenic to humans based on available data.
Specific Target Organ Toxicity: High vapor concentrations can result in central nervous system depression — drowsiness, headache, or dizziness.
Aspiration Hazard: May cause chemical pneumonia if swallowed and enters lungs.
Chronic Effects: Long-term, repeated skin contact may defat skin and cause dermatitis.
Ecotoxicity: Not readily biodegradable in aquatic environments.
Aquatic Toxicity: LC50 (fish, 96hr) > 100 mg/L.
Persistence and Degradability: Hydrocarbons persist in environment, slow rate of biodegradation.
Bioaccumulative Potential: High potential for bioaccumulation based on log Pow.
Mobility in Soil: Low mobility due to low water solubility and high hydrophobicity.
Other Adverse Effects: Oils may coat surfaces and diminish oxygen transfer to aquatic life.
Advice: Avoid uncontrolled release to environment and inform authorities in the event of significant spill.
Waste Treatment Methods: Recover or recycle if possible. Otherwise, send to licensed chemical disposal facility.
Disposal of Packaging: Rinse containers before disposal. Dispose of in accordance with local, state, and federal regulations.
Hazardous Waste Number: Consult local or national regulations.
Precautions: Never pour down drain or sewer. Do not pierce or burn containers, even after use.
UN Number: UN 1993
UN Proper Shipping Name: Flammable liquid, n.o.s. (Isododecane)
Transport Hazard Class: 3 (Flammable Liquid)
Packing Group: III
Label: Flammable Liquid
Environmental Hazard: Not regulated as a marine pollutant but avoid large releases to waterways
Special Precautions for User: Consult current transport regulations; containers should be upright and secure.
TSCA Status: Listed on the US Toxic Substances Control Act Inventory
DSL/NDSL (Canada): Listed/Complies
REACH Status (EU): Registered under EC No. 1907/2006
OSHA: Hazardous Chemical (29 CFR 1910.1200)
SARA Title III: No extremely hazardous substances present
California Prop 65: This product does not contain chemicals known to the State of California to cause cancer or reproductive harm.
WHMIS Classification (Canada): B2 (Flammable Liquid) D2B (Skin/Eye Irritant, Narcotic Effects)
Other Regulations: Users should ensure compliance with all applicable regional, national, and local laws.
