Octane

C8H18

octane

CAS111-65-9

Consulting for Octane

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Identification

CAS Number
111-65-9
EC Number
203-892-1
UN Number
1262
Index Number
601-009-00-8
PubChem CID
356

Physical-chemical properties

Molecular Formula
C8H18
Molar Mass
114.23 g/mol
IUPAC Name
octane

Chemical Identifiers

InChI
InChI=1S/C8H18/c1-3-5-7-8-6-4-2/h3-8H2,1-2H3
InChI Key
TVMXDCGIABBOFY-UHFFFAOYSA-N

Overview

Octane (CAS 111-65-9) is a saturated hydrocarbon with eight carbon atoms and serves as a key component in fuel formulations and industrial solvents. This linear alkane represents one of the most commercially significant members of the paraffin family, playing a crucial role in the petroleum and chemical industries. With its molecular formula C8H18 and molecular weight of 114.23 g/mol, octane exists as a colorless liquid under standard conditions, exhibiting the characteristic properties of medium-chain hydrocarbons. The compound serves as the reference standard for octane rating systems used to measure gasoline quality and anti-knock performance in internal combustion engines. Octane demonstrates excellent solvent properties for non-polar compounds while remaining immiscible with water, making it valuable for various extraction and purification processes. Its relatively low volatility compared to shorter-chain alkanes, combined with good chemical stability, contributes to its widespread industrial utility. The substance belongs to ADR class 3 as a flammable liquid, requiring appropriate handling and storage protocols in accordance with safety regulations. In industrial applications, octane finds extensive use as a high-quality solvent in chemical synthesis, particularly in processes involving non-polar organic compounds. It serves as a key component in specialty fuel blends and as a calibration standard for analytical instruments. The petrochemical industry utilizes octane in the production of various derivatives and as a feedstock for chemical manufacturing processes. Unlike related compounds such as 2-ethylbutyl acetate, which serves primarily as an ester solvent, octane's saturated structure provides enhanced stability in demanding applications. OYSI supplies technical-grade octane to meet diverse industrial requirements across European markets, ensuring consistent quality and reliable delivery for chemical processing applications.

Safety & Classification

No Hazard Classification

This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.

Transport (ADR)

UN Number1262
ADR Class3
Packing GroupII
Tunnel CodeD/E
Proper Shipping NameOctan
Marine PollutantNo

Frequently Asked Questions

What is octane?

Octane is a saturated hydrocarbon with the molecular formula C8H18 and a molecular weight of 114.23 g/mol. It belongs to the alkane family and consists of a straight chain of eight carbon atoms bonded to hydrogen atoms. Octane is commonly found in petroleum products and serves as an important component in gasoline formulations, where it contributes to fuel quality and engine performance characteristics.

What are the physicochemical properties of octane?

Octane is a colorless liquid at room temperature with a characteristic petroleum-like odor. It has a boiling point of approximately 125°C and is highly insoluble in water due to its nonpolar hydrocarbon structure. The substance has a relatively low density compared to water and is highly volatile, making it easily evaporable at ambient temperatures. Its chemical stability and nonpolar nature make it an excellent solvent for other hydrocarbons.

What is octane used for?

Octane is primarily used as a reference standard for measuring gasoline quality through the octane rating system. It serves as a key component in fuel blending operations and as a solvent in various industrial processes. Additionally, octane finds applications in chemical synthesis as a starting material for producing other organic compounds, and in laboratory settings as a nonpolar solvent for analytical procedures and research applications.

How to handle octane safely?

Octane should be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing to prevent skin and eye contact. Work in well-ventilated areas or under fume hoods to avoid inhalation of vapors. Keep away from ignition sources, heat, and sparks as octane is flammable. Use grounding and bonding procedures during transfer operations to prevent static electricity buildup and potential ignition.

How to store octane correctly?

Octane must be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources, sparks, and open flames. Storage areas should be equipped with appropriate fire suppression systems and spill containment measures. Keep containers grounded and bonded during handling. Store separately from oxidizing agents and other incompatible materials. Ensure storage complies with local fire codes and flammable liquid storage regulations.

What to do in case of contact with octane?

In case of skin contact with octane, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. If eye contact occurs, rinse immediately with plenty of clean water for at least 15 minutes and seek medical attention. In case of inhalation, move the person to fresh air immediately. If ingestion occurs, do not induce vomiting and seek immediate medical attention.

How to dispose of octane appropriately?

Octane must be disposed of as hazardous waste in accordance with local, national, and international regulations. Contact licensed waste disposal companies specialized in handling flammable liquid wastes. Never pour octane down drains, into soil, or into water bodies. Small quantities may be suitable for solvent recovery processes. Ensure proper documentation and tracking of waste disposal activities as required by applicable environmental regulations.

How to transport octane?

Octane is classified under ADR Class 3 (flammable liquids), Packing Group II, requiring specific packaging, labeling, and documentation for transport. Vehicles must carry appropriate fire extinguishers and emergency equipment. Drivers need ADR training certification for dangerous goods transport. Use UN-approved packaging and ensure proper marking with hazard labels. Transport documents must include emergency response information and comply with routing restrictions for dangerous goods.

Is octane subject to specific regulations?

Octane is subject to various chemical regulations including REACH registration requirements in Europe, though it is not classified as a Substance of Very High Concern (SVHC). Transport is regulated under ADR/RID dangerous goods regulations as a Class 3 flammable liquid. Local environmental regulations may apply for storage, handling, and disposal. Industrial users must comply with workplace safety regulations and may need permits for storage and use.

Where to buy octane in Europe?

Octane is available through OYSI, a European distributor of technical chemicals, serving various industries across the continent. OYSI provides reliable supply chains and technical support for octane procurement. The product is typically available in various packaging sizes to meet different industrial requirements. For specific availability, technical specifications, and pricing information, contact OYSI directly to discuss your octane supply needs and delivery requirements.

Data Sources

Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.