متانول LC-MS
| Formula | CH4O |
| Chemical formula | CH3OH |
| Density | ~ 0.79 g/cm3 (20°C) |
| Molar mass | 32.04 g/mol |
| CAS number | 67-56-1 |
| HS Code | 603-001-00-X |
| EC number | 29051100 |
| Storage | store at +15 to +25 °C |
| SDS | available |
| RTECS | PC1400000 |
| R phrase | R 11-23/24/25-39/23/24/25 |
| S phrase | S 7-16-36/37-45 |
| Odour | characteristic |
| Form | liquid |
| Color | colourless |
| Explosion limit | 5.5 to 36.5 vol % |
| Ignition temprature | 455°C |
| Solubility in water | soluble (20°C) |
| Flash point | 11 °C |
| Melting point | -98 °C |
| Boiling point | 64.5°C |
| Vapur pressure | 128 hPa (20°C) |
| Viscosity dynamical | 0.597mPa*s (20°C) |
| Assay | ≥ | 99.9 | % |
| Appearance | Clear | ||
| Identification | Conforms | ||
| Colour | ≤ | 10 | Hazen |
| Acidity | ≤ | 0.0002 | meq/g |
| Alkalinity | ≤ | 0.0002 | meq/g |
| Absorbance @220nm | ≤ | 5.0 | mAU |
| Absorbance @235nm | ≤ | 2.0 | mAU |
| Transmission@210 nm | ≥ | 35 | % |
| Transmission@220 nm | ≥ | 60 | % |
| Transmission@230 nm | ≥ | 75 | % |
| Transmission from 260 nm | ≥ | 98 | % |
| Suitability for LC-MS | Conforms | ||
| Evaporation residue | ≤ | 1.0 | mg/l |
| Water | ≤ | 0.01 | % |
| Filtered by 0.2 μm filter |
Methanol for LC-MS is a high-purity solvent designed for mass spectrometry and advanced chromatographic applications, ensuring minimal background noise and consistent analytical performance.
🏭⚗️ Production
Purified through multi-stage distillation to remove metals, particulates, and organic impurities. Tested for low UV absorbance, low conductivity, and minimal MS background. Packaged in solvent-resistant, airtight containers to prevent contamination and moisture uptake.
🔬 Properties
A clear, colorless, highly volatile liquid with a mild alcohol odor. Fully miscible with water and common organic solvents. Offers low viscosity, low UV absorbance, and extremely clean mass-spectral behavior. Hygroscopic; must be stored tightly sealed in cool, dry conditions.
🧪 Applications
Widely used in LC-MS mobile phases, gradient elution, sample preparation, dilution of standards, and extraction. Enhances ESI performance due to its high volatility and supports stable, reproducible chromatographic results.
⚠️ Safety
Highly flammable and toxic if inhaled, ingested, or absorbed through skin. Vapors may form explosive mixtures with air. Use PPE, work in a ventilated area or fume hood, and keep away from heat, sparks, and oxidizers. Store in tightly closed, compatible containers.
