Description

n-Octane CAS NO 111-65-9 is a straight-chain alkane hydrocarbon, a fundamental organic solvent and a key reference compound in analytical chemistry. Its primary value lies in its well-defined physical properties and high volatility, making it an essential standard and reagent. This product is critical for industries and laboratories requiring a pure, non-polar medium for calibration, research, and synthesis.

Application

• As a primary reference standard in gas chromatography (GC) for calibrating instruments and identifying other hydrocarbons.
• As a non-polar industrial solvent for resins, oils, and organic synthesis.
• As a key component in fuel and octane rating research, serving as a primary reference fuel (0 octane) for determining anti-knock properties.
• In the production of organic intermediates and as a reaction medium in various chemical manufacturing processes.
• For laboratory research and development in petrochemical, pharmaceutical, and material science applications.
• As a calorimetry standard due to its well-characterized combustion properties.

Basic Information

Product Name	n-Octane
CAS No.	111-65-9
Molecular Formula	C8H18
Molecular Weight	114.23 g/mol
Synonyms	Octane; Normal-Octane; n-Octane; Alkane C8; Heptyl methane; 1-Octane; UN 1262
EINECS	203-892-1

Quality Control

Our n-Octane is produced and handled under a strict quality management system. Each batch undergoes comprehensive analytical testing, including gas chromatography (GC), to ensure high purity and consistent performance as a solvent and reference material. Certificates of Analysis (COA) with detailed chromatographic data are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, well-ventilated area away from heat, sparks, and open flames. Due to its highly volatile nature, keep container tightly sealed when not in use. Recommended storage temperature: 15-25°C.

Specification

Item	Specification
Appearance	Clear, colorless liquid
Identification (IR)	Conforms
Assay (GC)	≥ 99.0% (Area %)
Density at 20°C	0.702 - 0.704 g/mL
Refractive Index (n20D)	1.397 - 1.399
Boiling Point	125 - 127 °C
Water Content (KF)	≤ 0.05%

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.