Description

Octadecane is a high-purity, long-chain linear alkane with the CAS registry number 593-45-3, valued for its excellent chemical stability and well-defined physical properties. It serves as a critical standard and reference material in analytical chemistry and as a versatile intermediate in specialty synthesis. This product is essential for industries including petrochemical research, polymer science, and the development of phase-change materials and specialty lubricants.

Application

• Analytical Reference Standard: Used as a primary standard in gas chromatography (GC) and mass spectrometry (MS) for calibration and method development.
• Phase Change Material (PCM): Acts as a latent heat storage medium in thermal energy management systems due to its specific melting/freezing point.
• Chemical Synthesis Intermediate: Serves as a building block or starting material for producing surfactants, lubricant additives, and other specialty chemicals.
• Polymer & Plasticizer Research: Utilized as a model compound or additive in polymer science to study crystallization behavior and modify material properties.
• Petrochemical Marker: Employed in geochemical and petrochemical analysis as a biomarker or reference hydrocarbon.
• Specialty Lubricants & Waxes: Incorporated into formulations requiring high stability and specific melting characteristics.

Basic Information

Product Name	Octadecane
CAS No.	593-45-3
Molecular Formula	C₁₈H₃₈
Molecular Weight	254.49 g/mol
Synonyms	n-Octadecane; Octadecane, normal; Alkane C18; n-C18; CH3(CH2)16CH3; Octadecyl hydride; Straight-chain octadecane
EINECS	209-790-3

Quality Control

Our Octadecane is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including gas chromatography (GC) for purity and identity confirmation. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). Keep away from heat, sparks, and open flames.

Specification

Item	Specification
Appearance	White crystalline solid or flakes
Identification (IR)	Conforms to standard
Assay (GC)	≥ 98.0%
Melting Point	28 - 30 °C
Boiling Point	~ 317 °C
Density (at 20°C)	~ 0.777 g/mL
Water Content (KF)	≤ 0.1%

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