Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
650536
Heptane
HPLC Plus, for HPLC, GC, and residue analysis, 99%
About This Item
Produits recommandés
Qualité
HPLC Plus
Niveau de qualité
Densité de vapeur
3.5 (vs air)
Pression de vapeur
40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)
Essai
≥98.5% (GC)
99%
Forme
liquid
Température d'inflammation spontanée
433 °F
Limite d'explosivité
7 %
Caractéristiques du produit alternatif plus écologique
Safer Solvents and Auxiliaries
Learn more about the Principles of Green Chemistry.
sustainability
Greener Alternative Product
Technique(s)
HPLC: suitable
gas chromatography (GC): suitable
Impuretés
≤0.0001% non-volatiles
≤0.01% water (Karl Fischer)
≤1.0 ppb Fluorescence (quinine) at 365 nm
Résidus halogénés
≤2 μg/L (as heptachlor epoxide)
Indice de réfraction
n20/D 1.3850-1.3890
n20/D 1.387 (lit.)
pb
98 °C (lit.)
Pf
−91 °C (lit.)
Solubilité
acetone: miscible(lit.)
carbon tetrachloride: soluble(lit.)
ethanol: very soluble(lit.)
water: insoluble(lit.)
Densité
0.684 g/mL at 25 °C (lit.)
λ
H2O reference
Absorption UV
λ: 200 nm Amax: ≤1.0
λ: 225 nm Amax: ≤0.10
λ: 250 nm Amax: ≤0.01
λ: 300-400 nm Amax: ≤0.005
Adéquation
corresponds for IR spectroscopy
suitable for residue analysis
Application(s)
food and beverages
Autre catégorie plus écologique
Chaîne SMILES
CCCCCCC
InChI
1S/C7H16/c1-3-5-7-6-4-2/h3-7H2,1-2H3
Clé InChI
IMNFDUFMRHMDMM-UHFFFAOYSA-N
Vous recherchez des produits similaires ? Visite Guide de comparaison des produits
Description générale
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.[1] Its thermal decomposition has been studied under different conditions of temperature and pressure.[2] Its oxidative dehydrogenation in the presence of magnesium oxide supported vanadium catalyst has been investigated.[3] 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).[4]
Application
Spectrophotometry.
Environmental testing.
- To compose the solvent mixtures for the purification of N-acylpyrrolidine derivatives of fatty acid methyl esters (FAMEs) by TLC (Thin Layer Chromatography).[5]
- To generate chiral alcohols and heptanones, via whole cell double oxidation.[6]
- As a solvent in the synthesis of isopropyl acetate, via esterification of acetic acid with isopropyl alcohol catalyzed by lipase immobilized on silica.[7]
Caractéristiques et avantages
Conditionnement
As a global leader in lab reagents, we are constantly looking for new ways to optimize the safety of our products. The newly developed 4L solvent bottle design features advanced sealing technology that eliminates leaks to make the handling of solvents safer and more convenient than ever before.
See all the new features here!
Autres remarques
Informations légales
Mention d'avertissement
Danger
Mentions de danger
Conseils de prudence
Classification des risques
Aquatic Acute 1 - Aquatic Chronic 1 - Asp. Tox. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
Organes cibles
Central nervous system
Code de la classe de stockage
3 - Flammable liquids
Classe de danger pour l'eau (WGK)
WGK 2
Point d'éclair (°F)
24.8 °F - closed cup
Point d'éclair (°C)
-4 °C - closed cup
Faites votre choix parmi les versions les plus récentes :
Déjà en possession de ce produit ?
Retrouvez la documentation relative aux produits que vous avez récemment achetés dans la Bibliothèque de documents.
Les clients ont également consulté
Articles
Development and validation of a fatty acid methyl esterification method, using methanolic HCl reagent, for FAME analysis by GC of vegetable oils and fats.
Contenu apparenté
Why should you have to choose between solvents that are ecological and those that are reliable? Enjoy both at once with our biorenewable and greener solutions. Cyrene™ solvent is a new dipolar aprotic alternative to common REACH restricted solvents, such as N methyl-2-pyrrolidone (NMP) and Dimethylformamide (DMF).
Pourquoi devrait-on choisir entre solvants écologiques et solvants fiables ? Nous vous proposons les deux à la fois grâce à nos solutions biorenouvelables et plus écologiques. Le solvant Cyrene™ est une nouvelle alternative aprotique dipolaire aux solvants courants frappés par la restriction REACH, tels que la N-méthyl-2-pyrrolidone (NMP) et le diméthylformamide (DMF).
-
How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
Helpful?
-
-
How can I determine the shelf life / expiration / retest date of this product?
1 answer-
If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdfHelpful?
-
Active Filters
Notre équipe de scientifiques dispose d'une expérience dans tous les secteurs de la recherche, notamment en sciences de la vie, science des matériaux, synthèse chimique, chromatographie, analyse et dans de nombreux autres domaines..
Contacter notre Service technique
