629-99-2

Basic information

• Product Name: N-PENTACOSANE
• Synonyms: PENTAEICOSANE;PENTACOSANE;N-PENTACOSANE;ALKANE C25;PENTACOSANE, STANDARD FOR GC;N-PENTACOSANE, 250MG, NEAT;n-Pentacosane,99%;n-Pentacosan
• CAS NO: 629-99-2
• Molecular Formula: C₂₅H₅₂
• Molecular Weight: 352.68
• EINECS: 211-123-6
• Product Categories: Analytical Chemistry;n-Paraffins (GC Standard);Standard Materials for GC;Acyclic;Alkanes;Organic Building Blocks;Chemical Class;Hydrocarbons;NeatsAlphabetic;Alpha Sort;P;PA - PEN;P-SAlphabetic;Volatiles/ Semivolatiles
• Mol File: 629-99-2.mol
• Article Data: 6

Chemical Properties

• Melting Point: 53-56 °C(lit.)
• Boiling Point: 169-170 °C0.05 mm Hg(lit.)
• Flash Point: >230 °F
• Appearance: /Wax
• Density: 0,778 g/cm3
• Vapor Pressure: 2.66E-06mmHg at 25°C
• Refractive Index: 1.4380
• Storage Temp.: room temp
• Solubility: soluble in Benzene,Toluene
• BRN: 1763638
• CAS DataBase Reference: N-PENTACOSANE(CAS DataBase Reference)
• NIST Chemistry Reference: N-PENTACOSANE(629-99-2)
• EPA Substance Registry System: N-PENTACOSANE(629-99-2)

Safety Data

• Safety Statements: 22-24/25
• WGK Germany: 3
• RTECS: 211-123-6
• Hazardous Substances Data: 629-99-2(Hazardous Substances Data)

Usage

Description

N-PENTACOSANE, also known as an alkane, is a colorless solid at ambient conditions and is a constituent of many naturally occurring waxes. It is defined as an alkane consisting of an unbranched chain of 25 carbon atoms and has chemical properties characterized by white glistening fluffy flakes.

Uses

Used in Chemical Industry:
N-PENTACOSANE is used as a raw material for the production of various chemicals and compounds due to its stable and unbranched carbon chain structure.
Used in Cosmetics Industry:
N-PENTACOSANE is used as an ingredient in cosmetics for its emollient and moisturizing properties, helping to improve the texture and feel of skincare products.
Used in Pharmaceutical Industry:
N-PENTACOSANE is used as a component in the formulation of certain medications, leveraging its chemical stability and compatibility with other pharmaceutical compounds.
Used in Lubricant Industry:
N-PENTACOSANE is used as a lubricant in various mechanical applications due to its low friction properties and ability to provide a smooth, consistent layer between moving parts.
Used in Wax Industry:
N-PENTACOSANE is used in the production of waxes for various applications, such as candles, coatings, and polishes, due to its natural occurrence in waxes and its solid state at room temperature.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Saturated aliphatic hydrocarbons, such as N-PENTACOSANE, may be incompatible with strong oxidizing agents like nitric acid. Charring of the hydrocarbon may occur followed by ignition of unreacted hydrocarbon and other nearby combustibles. In other settings, aliphatic saturated hydrocarbons are mostly unreactive. They are not affected by aqueous solutions of acids, alkalis, most oxidizing agents, and most reducing agents. When heated sufficiently or when ignited in the presence of air, oxygen or strong oxidizing agents, they burn exothermically to produce carbon dioxide and water.

InChI:InChI=1/C25H52/c1-3-5-7-9-11-13-15-17-19-21-23-25-24-22-20-18-16-14-12-10-8-6-4-2/h3-25H2,1-2H3

Upstream product

• 31469-36-0 n-pentacos-9-one 
• 2123-19-5 13-pentacosanone 
• 103036-80-2 pentacosane-2,6-dione disemicarbazone 
• 103682-10-6 2-Dodecyl-tetradecanenitrile 
• 10026-13-8 phosphorus pentachloride 
• 31334-46-0 9,17-pentacosanedione 
• 91-17-8 decalin 
• 123-99-9 azelaic acid 
• 123-98-8 azelaoyl chloride 
• 28267-29-0 ethyl tridecanoate 
• 102896-10-6 pentacosane-2,6-dione 
• 129-00-0 pyrene 
• 124-18-5 decane 
• 112-54-9 Dodecanal 

Relevant articles and documents

A General Approach to Intermolecular Olefin Hydroacylation through Light-Induced HAT Initiation: An Efficient Synthesis of Long-Chain Aliphatic Ketones and Functionalized Fatty Acids

Herein, an operationally simple, environmentally benign and effective method for intermolecular radical hydroacylation of unactivated substrates by employing photo-induced hydrogen atom transfer (HAT) initiation is described. The use of commercially available and inexpensive photoinitiators (Ph2CO and NHPI) makes the process attractive. The olefin hydroacylation protocol applies to a wide array of substrates bearing numerous functional groups and many complex structural units. The reaction proves to be scalable (up to 5 g). Different functionalized fatty acids, petrochemicals and naturally occurring alkanes can be synthesized with this protocol. A radical chain mechanism is implicated in the process.

Process for hydrogenation of carboxylic acids and derivatives to hydrocarbons

A process for hydrogenating a carboxylic acid and/or derivative thereof having a carboxylate group represented by the general formula R1COO-, which process comprises feeding hydrogen and the carboxylic acid and/or derivative thereof to a reactor and maintaining conditions within the reactor such that hydrogen reacts with the carboxylic acid and/or derivative thereof to produce a product stream comprising carbon dioxide, carbon monoxide, methane and hydrocarbons represented by general formulae R1H and R1CH3, characterised in that the molar ratio of R1H : R1CH3 is above a pre-determined value and/or the mole ratio of the sum of carbon dioxide, carbon monoxide and methane to carboxylate groups is above a pre-determined value.

Temperatures and enthalpies of solid-solid and melting transitions of the odd-numbered n-alkanes C21, C23, C25, C27, and C29

Very high purity samples of normal pentacosane and heptacosane are made by synthesis: the procedures for the C25 and C27 synthesis and the original conditions of their purification, particularly using the extraction by supercritical carbon dioxide, are described. Measurements of temperatures and enthalpies of the solid-solid transitions and of the melting transition were carried out by differential scanning calorimetry on the C25 and C27 synthetic samples and the odd-numbered homologous n-alkanes (from C21 to C29). The results show the importance of the effect of the impurities, particularly for the δ and γ crystal-crystal transition temperatures of C25 and C27. Several current data of the literature are also shown concerning the temperatures and the enthalpies of solid-solid and melting transitions of these five n-alkanes.