650536

Heptane

HPLC Plus, for HPLC, GC, and residue analysis, 99%

• Wzór liniowy: CH₃(CH₂)₅CH₃
• Numer CAS: 142-82-5
• Masa cząsteczkowa: 100.20
• Beilstein: 1730763
• Numer WE: 205-563-8
• Numer MDL: MFCD00009544
• Kod UNSPSC: 12190000
• Identyfikator substancji w PubChem: 329760027
• NACRES: NA.06
• klasa czystości: HPLC Plus; for residue analysis
• Próba: ≥98.5% (GC); 99%
• metody: HPLC: suitable; gas chromatography (GC): suitable
• Zastosowanie: food and beverages
• bp: 98 °C (lit.)
• ciśnienie pary: 40 mmHg ( 20 °C); 83 mmHg ( 37.7 °C)

Właściwości

• klasa czystości: HPLC Plus; for residue analysis
• Poziom jakości: 100
• gęstość pary: 3.5 (vs air)
• ciśnienie pary: 40 mmHg ( 20 °C); 83 mmHg ( 37.7 °C)
• Próba: ≥98.5% (GC); 99%
• Formularz: liquid
• temp. samozapłonu: 433 °F
• granice wybuchowości: 7 %
• charakterystyka ekologicznej alternatywy: Safer Solvents and Auxiliaries; Learn more about the Principles of Green Chemistry.
• sustainability: Greener Alternative Product
• metody: HPLC: suitable; gas chromatography (GC): suitable
• zanieczyszczenia: ≤0.0001% non-volatiles; ≤0.01% water (Karl Fischer); ≤1.0 ppb Fluorescence (quinine) at 365 nm
• pozostałości halogenowane: ≤2 μg/L (as heptachlor epoxide)
• współczynnik refrakcji: n20/D 1.3850-1.3890; n20/D 1.387 (lit.)
• bp: 98 °C (lit.)
• mp: −91 °C (lit.)
• rozpuszczalność: acetone: miscible(lit.); carbon tetrachloride: soluble(lit.); ethanol: very soluble(lit.); water: insoluble(lit.)
• gęstość: 0.684 g/mL at 25 °C (lit.)
• λ: H₂O reference
• absorpcja UV: λ: 200 nm A_max: ≤1.0; λ: 225 nm A_max: ≤0.10; λ: 250 nm A_max: ≤0.01; λ: 300-400 nm A_max: ≤0.005
• przydatność: corresponds for IR spectroscopy
• Zastosowanie: food and beverages
• kategoria ekologicznej alternatywy: Aligned,
• ciąg SMILES: CCCCCCC
• InChI: 1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
• Klucz InChI: IMNFDUFMRHMDMM-UHFFFAOYSA-N

Opis

Opis ogólny

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 HPLC and GC and thus has been enhanced for "Safer Solvents and Auxiliaries". Click here for more information.

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).

Zastosowanie

Greener alternatives to Hexane in HPLC.
Spectrophotometry.
Environmental testing.

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).
• 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.

Cechy i korzyści

Greener alternative for hexane

Inne uwagi

What is a green solvent? A comprehensive framework for the environmental assessment of solvents

Pesticide Residue Analysis (as Heptachlor Epoxide) <2 μg/L

Pure-Pac^® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723.

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Informacje prawne

Pure-Pac is a registered trademark of Merck KGaA, Darmstadt, Germany

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Informacja o środkach bezpieczeństwa

• Piktogramy: GHS02,GHS08,GHS07,GHS09
• Hasło ostrzegawcze: Danger
• Zwroty wskazujące rodzaj zagrożenia: H225,H304,H315,H336,H410
• Zwroty wskazujące środki ostrożności: P210 - P233 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Klasyfikacja zagrożeń: Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
• Organy docelowe: Central nervous system
• Kod klasy składowania: 3 - Flammable liquids
• Klasa zagrożenia wodnego (WGK): WGK 2
• Temperatura zapłonu (°F): 24.8 °F - closed cup
• Temperatura zapłonu (°C): -4 °C - closed cup