592579
Heptane
suitable for HPLC, ≥96%
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A propos de cet article
InChI key
IMNFDUFMRHMDMM-UHFFFAOYSA-N
InChI
1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
SMILES string
CCCCCCC
grade
HPLC grade
vapor density
3.5 (vs air)
vapor pressure
40 mmHg ( 20 °C), 83 mmHg ( 37.7 °C)
assay
≥96%
form
liquid
autoignition temp.
433 °F
composition
n-heptane, 96%
expl. lim.
7 %
greener alternative product characteristics
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technique(s)
HPLC: suitable
impurities
<0.02% water
evapn. residue
<0.0003%
color
APHA: ≤10
refractive index
n20/D 1.387 (lit.)
Quality Level
mp
−91 °C (lit.)
solubility
acetone: miscible(lit.), carbon tetrachloride: soluble(lit.), ethanol: very soluble(lit.), ethyl acetate: miscible(lit.), water: insoluble(lit.)
density
0.684 g/mL at 25 °C (lit.)
λmax
400 nm (2nd), 0.01 at 254 nm
absorption
0.10 at 225 nm, 0.40 at 210 nm, 1.0 at 197 nm
application(s)
food and beverages
greener alternative category
, Aligned
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General description
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Heptane (n-Heptane) is a primary reference fuel (PRF) for the rating of octane numbers of fuels in internal combustion engines. Its cetane number has been reported to be 56. Mechanism and kinetic studies of its oxidation in flow reactors, shock tubes and rapid compression machines have been proposed. Its thermal decomposition has been studied under different conditions of temperature and pressure. Its oxidative dehydrogenation in the presence of magnesium oxide supported vanadium catalyst has been investigated. Molybdenum phosphide supported on Hβ zeolite (MoP/Hβ) catalyzed hydroisomerization of n-heptane has been reported to be enhanced by doping with secondary metals (Cr, Ni or Ce).
Application
- To compose the solvent mixtures for the purification of N-acylpyrrolidine derivatives of fatty acid methyl esters (FAMEs) by TLC (Thin Layer Chromatography).
- To generate chiral alcohols and heptanones, via whole cell double oxidation.
- As a solvent in the synthesis of isopropyl acetate, via esterification of acetic acid with isopropyl alcohol catalyzed by lipase immobilized on silica.
Features and Benefits
Packaging
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Other Notes
signalword
Danger
hcodes
Hazard Classifications
Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Central nervous system
Classe de stockage
3 - Flammable liquids
wgk
WGK 2
flash_point_f
24.8 °F - closed cup
flash_point_c
-4 °C - closed cup
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