592579

Heptane

suitable for HPLC, ≥96%

• 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: 329758614
• NACRES: NA.06

Właściwości

• gęstość pary: 3.5 (vs air)
• ciśnienie pary: 40 mmHg ( 20 °C); 83 mmHg ( 37.7 °C)
• Próba: ≥96%
• Postać: liquid
• temp. samozapłonu: 433 °F
• skład: n-heptane, 96%
• 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
• zanieczyszczenia: <0.02% water
• pozostałość po odparowaniu: <0.0003%
• kolor: APHA: ≤10
• współczynnik refrakcji: n20/D 1.387 (lit.)
• tw: 98 °C (lit.); 98 °C
• mp: −91 °C (lit.)
• rozpuszczalność: acetone: miscible(lit.); carbon tetrachloride: soluble(lit.); ethanol: very soluble(lit.); ethyl acetate: miscible(lit.); water: insoluble(lit.)
• gęstość: 0.684 g/mL at 25 °C (lit.)
• λmaks.: 400 nm (2nd)
• λmax: 0.01 at 254 nm
• absorpcja: 0.10 at 225 nm; 0.40 at 210 nm; 1.0 at 197 nm
• 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 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 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.

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

Polecane produkty

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

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