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gradient grade for liquid chromatography LiChrosolv® Reag. Ph Eur

Methyl alcohol
Linear Formula:
CAS Number:
Molecular Weight:
MDL number:
EC Index Number:

Quality Level


reag. Ph. Eur.

vapor density

1.11 (vs air)

vapor pressure

128 hPa ( 20 °C)
410 mmHg ( 50 °C)
97.68 mmHg ( 20 °C)

product line



gradient grade


≥99.9% (GC)



autoignition temp.

725 °F


5628 mg/kg LD50, oral (Rat)
17100 mg/kg LD50, skin (Rabbit)

expl. lim.

36 %


HPLC: suitable


≤0.0002 meq/g Acidity
≤0.0002 meq/g Alkalinity
≤0.02% Water

evapn. residue

≤2.0 mg/L


APHA: ≤10


210 nm, ≥20%
220 nm, ≥60%
230 nm, ≥75%
235 nm, ≥83%
250 nm, ≥95%
260 nm, ≥98%

refractive index

n20/D 1.329 (lit.)

kinematic viscosity

0.54-0.59 cSt(20 °C)


64.7 °C (lit.)


−98 °C (lit.)

transition temp

flash point 9.7 °C


0.791 g/mL at 25 °C (lit.)

UV absorption

λ: 225 nm Amax: ≤0.170

storage temp.


SMILES string




InChI key


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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): ≥ 99.9 %
Identity (IR): conforms
Evaporation residue: ≤ 2.0 mg/l
Water: ≤ 0.02 %
Color: ≤ 10 Hazen
Density (d 20 °C/20 °C): 0.791 - 0.793
Boiling point: 64 - 65 °C
Acidity: ≤ 0.0002 meq/g
Alkalinity: ≤ 0.0002 meq/g
Gradient grade (at 235 nm): ≤ 2.0 mAU
Gradient grade (at 254 nm): ≤ 1.0 mAU
Fluorescence (as quinine at 254 nm): ≤ 1.0 ppb
Fluorescence (as quinine at 365 nm): ≤ 0.5 ppb
Transmission (at 210 nm): ≥ 20 %
Transmission (at 220 nm): ≥ 60 %
Transmission (at 230 nm): ≥ 75 %
Transmission (at 235 nm): ≥ 83 %
Transmission (at 250 nm): ≥ 95 %
Transmission (from 260 nm): ≥ 98 %
Absorbance (at 225 nm): ≤ 0.170
Filtered by 0.2 µm filter.
Suitable for UPLC / UHPLC /Ultra HPLC - instruments.
Conforms to Methanol R1 and R2 according to Reag. Ph Eur;
conforms to the requirements of ACS for liquid chromatography suitability.
Evaporation Number: 1.9

Legal Information

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

Signal Word


Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Storage Class Code

3 - Flammable liquids



Flash Point(F)

49.5 °F - closed cup

Flash Point(C)

9.7 °C - closed cup

Certificate of Analysis

Certificate of Origin


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