MilliporeSigma
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1.04390

Supelco

n-Heptane

for liquid chromatography LiChrosolv®

Synonym(s):
Heptane
Linear Formula:
CH3(CH2)5CH3
CAS Number:
Molecular Weight:
100.20
Beilstein:
1730763
MDL number:
EC Index Number:
205-563-8

Quality Level

vapor density

3.5 (vs air)

vapor pressure

40 mmHg ( 20 °C)
83 mmHg ( 37.7 °C)

product line

LiChrosolv®

grade

isocratic

assay

≥99.3% (GC)

form

liquid

autoignition temp.

433 °F

potency

>5000 mg/kg LD50, oral (Rat)
>2000 mg/kg LD50, skin (Rabbit)

expl. lim.

7 %

technique(s)

HPLC: suitable

impurities

≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.005% Water

evapn. residue

≤2.0 mg/L

transmittance

210 nm, ≥50%
220 nm, ≥80%
245 nm, ≥98%

refractive index

n20/D 1.387 (lit.)

bp

98 °C (lit.)

mp

−91 °C (lit.)

transition temp

flash point -4 °C

solubility

0.05 g/L

density

0.684 g/mL at 25 °C (lit.)

storage temp.

2-30°C

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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General description

With their high degree of UV transmittance, low particle count, low acidity and alkalinity and low evaporation residue level, LiChrosolv solvents are ideal for reproducible separations. Since separations are normally carried out under gradient conditions in analytical HPLC, we offer solvents in "gradient grade" as well as "isocratic grade". This enables to minimize the gradient effect of the solvent involved.

Preparation Note

Product filtered through a 0.2 μm filter

Analysis Note

Purity (GC): ≥ 99.3 %
Identity (IR): conforms
Evaporation residue: ≤ 2.0 mg/l
Water: ≤ 0.005 %
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Transmission (at 210 nm): ≥ 50 %
Transmission (at 220 nm): ≥ 80 %
Transmission (from 245 nm): ≥ 98 %
Filtered by 0.2 µm filter

Legal Information

LICHROSOLV is a registered trademark of Merck KGaA, Darmstadt, Germany

Signal Word

Danger

Hazard Classifications

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

Target Organs

Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

24.8 °F

Flash Point(C)

-4 °C

Certificate of Analysis

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