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O652

Sigma-Aldrich

Octadecane

99%

Synonym(s):

C18-n-Alkane, n-Octadecane

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About This Item

Linear Formula:
CH3(CH2)16CH3
CAS Number:
593-45-3
Molecular Weight:
254.49
Beilstein/REAXYS Number:
1740138
EC Number:
209-790-3
MDL number:
MFCD00009007
UNSPSC Code:
12352100
PubChem Substance ID:
24898037
NACRES:
NA.22

vapor density

8.8 (vs air)

Quality Level

100

vapor pressure

1 mmHg ( 119 °C)

assay

99%

form

solid or liquid (Conforms to requirements)

autoignition temp.

455 °F

bp

317 °C (lit.)

mp

26-29 °C (lit.)

density

0.777 g/mL at 25 °C (lit.)

SMILES string

CCCCCCCCCCCCCCCCCC

InChI

1S/C18H38/c1-3-5-7-9-11-13-15-17-18-16-14-12-10-8-6-4-2/h3-18H2,1-2H3

InChI key

RZJRJXONCZWCBN-UHFFFAOYSA-N

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Application

n-Octadecane is generally used in developing microencapsulated phase-change materials.
It can also be used as a reactant to synthesize:
  • N-octadecylsulfonyl)-alanine sodium salt
  • 1-octadecanesulfonyl chloride
  • 2-octadecanone

pictograms

Health hazard
GHS08

signalword

Danger

hcodes

H304

Hazard Classifications

Asp. Tox. 1

Storage Class

10 - Combustible liquids

wgk_germany

WGK 3

flash_point_f

330.8 °F - closed cup

flash_point_c

166 °C - closed cup

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
MKCM5285
MKCG6046
MKBZ5347V
MKBQ9336V
MKBG9973V

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Fundamental time scales governing organic aerosol multiphase partitioning and oxidative aging.
Zhang H, et al.
Environmental Science & Technology, 49(16), 9768-9777 (2015)
Fabrication and performances of microencapsulated phase change materials based on n-octadecane core and resorcinol-modified melamine?formaldehyde shell.
Zhang H and Wang X
Colloids Surf., 332(2-3), 129-138 (2009)
Ahmad Fariz Nicholas et al.
Nanomaterials (Basel, Switzerland), 8(9) (2018-09-08)
The preparation of activated carbon using palm kernel shells as the precursor (PKSAC) was successfully accomplished after the parametric optimization of the carbonization temperature, carbonization holding time, and the ratio of the activator (H₃PO₄) to the precursor. Optimization at 500
Aiym Tleuova et al.
Nanomaterials (Basel, Switzerland), 10(12) (2020-12-03)
Pyraclostrobin (Pyr) is one of the most effective fungicides. However, it can degrade via photolysis in water, it is toxic to aquatic life and if inhaled, it has a low solubility in water, that leads to difficulties when applying to
Synthesis and Physicochemical Properties of Alanine?Based Surfactants.
Bougueroua M, et al.
Journal of Surfactants and Detergents, 19(6), 1121-1131 (2016)
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Protocols

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Separation of Hexane; Heptane; Octane; Nonane; Decane; Undecane; Dodecane; Tetradecane; Hexadecane; Octadecane; Eicosane; Tetracosane; Octacosane; Dotriacontane; Hexatriacontane; Tetracontane; Tetratetracontane

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