Méthanol ≥99.9% (par GC), LiChrosolv® Reag. Ph. Eur., grade Gradient pour la chromatographie en phase liquide , Supelco®
Marques : MerckTotal Evaluation: 0
Moyenne des Notes : 0.0 sur 5
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Danger
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Synonyme(s):
Alcool à bruler
, Alcool méthylique
M-Clarity™ (Niveau de qualité) = MQ200
- 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
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 a 'gradient grade' as well as 'isocratic grade'. This minimises the gradient effect of the solvent involved.
Formule:
CH₃OH Poids moléculaire: 32,04 g/mol Point d'ébullition: 64,6 °C (1013 hPa) Point de fusion: –98 °C Densité: 0,7918 g/cm³ (20 °C) Point éclair: 11 °C (coupe fermée) Température de stockage: Température ambiante |
Numéro MDL:
MFCD00004595 Numéro CAS: 67-56-1 EINECS: 200-659-6 UN: 1230 ADR: 3 (6.1),II REACH: 01-2119433307-44 Indice Merck: 13,05984 |
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Résultats des tests de spécification
Purity (GC) | ≥99.9% |
Identity (IR) | Conforms |
Evaporation residue | ≤2.0 mg/l |
Water | ≤0.02% |
Colour | ≤10 Hazen |
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 |
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