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8.20547

Sigma-Aldrich

n-Eicosane

for synthesis

Synonym(s):

n-Eicosane

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About This Item

Linear Formula:
CH3(CH2)18CH3
CAS Number:
Molecular Weight:
282.55
MDL number:
UNSPSC Code:
12352001
EC Index Number:
204-018-1
NACRES:
NA.22

vapor pressure

<0.001 hPa ( 25 °C)

Quality Level

assay

≥98.0% (GC)

form

crystals

bp

204-206 °C/20 hPa

mp

34-37 °C

transition temp

flash point 176 °C

density

0.79 g/cm3 at 20 °C

storage temp.

2-30°C

InChI

1S/C20H42/c1-3-5-7-9-11-13-15-17-19-20-18-16-14-12-10-8-6-4-2/h3-20H2,1-2H3

InChI key

CBFCDTFDPHXCNY-UHFFFAOYSA-N

Application

  • Effect of temperature and graphite particle fillers on thermal conductivity and viscosity of phase change material n-eicosane: This study discusses the enhanced thermal conductivity and viscosity changes of n-eicosane when mixed with graphite particle fillers, important for applications in energy storage and thermal management (Srinivasan et al., 2017).
  • Self-Assembly Synthesis of Microencapsulated n-Eicosane Phase-Change Materials with Crystalline-Phase-Controllable Calcium Carbonate Shell: This paper covers the synthesis of microencapsulated n-eicosane with a calcium carbonate shell, crucial for enhancing thermal energy storage systems in drug delivery mechanisms (Yu et al., 2014).
  • Preparation and thermal properties of n-eicosane/nano-SiO2/expanded graphite composite phase-change material for thermal energy storage: This research explores the preparation and enhanced thermal properties of n-eicosane composites, beneficial for applications in material sciences focusing on energy efficiency (Zhang et al., 2020).
  • An experimental study of enhanced heat sinks for thermal management using n-eicosane as phase change material: This article evaluates the use of n-eicosane in enhancing heat sinks, which is significant for designing more efficient cooling systems in pharmaceutical manufacturing processes (Arshad et al., 2018).

Analysis Note

Assay (GC, area%): ≥ 98.0 % (a/a)
Melting range (lower value): ≥ 36 °C
Melting range (upper value): ≤ 39 °C
Identity (GC): passes test
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

pictograms

Health hazard

signalword

Danger

hcodes

Hazard Classifications

Asp. Tox. 1

Storage Class

11 - Combustible Solids

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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