Merck
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34873

Sigma-Aldrich

Heptane

greener alternative

suitable for HPLC, ≥99%

Fórmula linear:
CH3(CH2)5CH3
Número CAS:
Peso molecular:
100.20
Beilstein:
1730763
Número EC:
Número MDL:
ID de substância PubChem:

Nível de qualidade

100

densidade de vapor

3.5 (vs air)

pressão de vapor

40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)

teor

≥99%

forma

liquid

temperatura de autoignição

433 °F

purificado por

filtration through 0.2μm

Lim. expl.

7 %

características do produto alternativo mais ecológico

Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.

technique(s)

HPLC: suitable

Impurezas

≤0.001% free acid (as CH3COOH)
≤0.01% water (Karl Fischer)
≤1 ppb fluorescence (quinine) at 254 nm
≤1 ppb fluorescence (quinine) at 365 nm

resíduo de evaporação

≤0.0003%

cor

APHA: ≤10

índice de refração

n20/D 1.387 (lit.)

pb

98 °C (lit.)

pf

−91 °C (lit.)

densidade

0.684 g/mL at 25 °C (lit.)

Absorção UV

λ: 200 nm Amax: ≤0.70
λ: 210 nm Amax: ≤0.40
λ: 220 nm Amax: ≤0.10
λ: 230 nm Amax: ≤0.05
λ: 245 nm Amax: ≤0.01
λ: 260 nm Amax: ≤0.01
λ: 400 nm Amax: ≤0.01

categoria alternativa mais ecológica

Aligned

SMILES string

CCCCCCC

InChI

1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3

InChI key

IMNFDUFMRHMDMM-UHFFFAOYSA-N

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Descrição geral

We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. Heptane is an environmentally preferable solvent and greener alternative to hexane for chromatographic purification and thus has been enhanced for "Safer Solvents and Auxiliaries". Click here for more information.
Tools and techniques for solvent selection: green solvent selection guides.

Heptane (n-Heptane) is a linear hydrocarbon. Its cetane number has been reported to be 56.

Aplicação

Greener alternatives to Hexane in HPLC.
Heptane (n-heptane) may be used to compose the solvent mixtures for the purification of N-acylpyrrolidine derivatives of fatty acid methyl esters (FAMEs) by TLC (Thin Layer Chromatography).

Embalagem

56 L in Pure-Pac™ 1
200 L in Pure-Pac™ 2
1, 6×1, 2, 4×2, 4×4 L in glass bottle
20 L in Nowpak™
100 mL in glass bottle
20, 50 L in Pure-Pac™ 2

Características e benefícios

Greener alternative for hexane

Outras notas

Important notice
The article number 34873-4X2.5L will be discontinued. Please order the single bottle 34873-2.5L which is physically identical with the same exact specifications.

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Palavra indicadora

Danger

Classificações de perigo

Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Órgãos-alvo

Central nervous system

Código de classe de armazenamento

3 - Flammable liquids

WGK

WGK 2

Ponto de fulgor (ºF)

24.8 °F

Ponto de fulgor (ºC)

-4 °C

Certificado de análise

Insira o número de lote para pesquisar o Certificado de análise (COA).

Certificado de origem

Insira o número de lote para pesquisar o Certificado de origem (COO).

Bacterial phospholipid molecular species analysis by ion-pair reversed-phase HPLC/ESI/MS.
Mazzella N, et al.
Journal of Lipid Research, 45(7), 1355-1363 (2004)
A comprehensive modeling study of n-heptane oxidation.
Curran HJ, et al.
Combustion and Flame, 114(1), 149-177 (1998)
S Monadjemi et al.
Environmental science & technology, 45(22), 9582-9589 (2011-09-29)
Photodegradation is seldom considered at the surface of vegetation after crop spraying. Chlorothalonil, a broad-spectrum foliar fungicide with a very widespread use worldwide, was considered. To represent the waxy upper layer of leaves, tests were performed within thin paraffin wax
Thushara Karunasekara et al.
Journal of chromatography. A, 1218(6), 809-816 (2011-01-07)
Partition coefficients for varied compounds were determined for the organic solvent-propylene carbonate biphasic partition system where the organic solvent is n-heptane, isopentyl ether or 1-octanol. These partition coefficient databases are analyzed using the solvation parameter model facilitating a quantitative comparison
Ross J Ellis et al.
Chemistry (Weinheim an der Bergstrasse, Germany), 20(40), 12796-12807 (2014-08-30)
Combining experiment with theory reveals the role of self-assembly and complexation in metal-ion transfer through the water-oil interface. The coordinating metal salt Eu(NO3)3 was extracted from water into oil by a lipophilic neutral amphiphile. Molecular dynamics simulations were coupled to

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