Heptane
About This Item
Linear Formula:
CH3(CH2)5CH3
CAS Number:
142-82-5
Molecular Weight:
100.20
General description
This product aligns with one or more of the 12 Principles of Green ChemistryHeptane 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.
Quality Segment: 100
Vapor Density: 3.5 (vs air)
Vapor Pressure: 40 mmHg (20 °C), 83 mmHg (37.7 °C)
Assay: ≥99%
Form: Liquid
Autoignition Temperature: 433 °F
Purified By: Filtration through 0.2 μm
Explosion Limit: 7%
Sustainability: Sustainability features
Techniques: HPLC: suitable
Impurities: ≤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
Evaporation Residue: ≤0.0003%
Color: APHA: ≤10
Refractive Index: n20/D 1.387 (lit.)
Boiling Point: 98 °C (lit.)
Melting Point: −91 °C (lit.)
Density: 0.684 g/mL at 25 °C (lit.)
UV Absorption: 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
