Methanol For Spectroscopy UV 2.5 Ltr
Methanol for spectroscopy Uvasol®. CAS 67-56-1, chemical formula CH₃OH, molar mass 32.04 g/mol.
Manufacturer: Merck
Catalog ID: 106002.2500
Stock: In Stock
Description
| Catalogue Number | 106002 |
| Synonyms | MeOH, Hydroxymethane, Methyl alcohol, Carbinol |
| Overview | Accurate analytic results in UV/VIS and infrared spectroscopy depend on the use of very pure solvents for sample preparation. The Uvasol® solvents range has been specially designed for spectroscopy and other applications requiring solvents of the highest spectral purity. The refinement process allows a greater degree of security in applications and avoids misinterpretation of analytical results caused by traces of UV, IR and fluorescence contamination. Uvasol® solvents offer best UV transmittance. In all specifications the minimum transmittance for 5 typical wavelengths are identified. Furthermore the transmittance is specified in accordance with Reag. Ph Eur and ACS. |
Product Information
| CAS number | 67-56-1 |
| EC index number | 603-001-00-X |
| EC number | 200-659-6 |
| Hill Formula | CH₄O |
| Chemical formula | CH₃OH |
| Molar Mass | 32.04 g/mol |
| HS Code | 2905 11 00 |
Applications
| Application | Methanol for spectroscopy Uvasol®. CAS 67-56-1, chemical formula CH₃OH, molar mass 32.04 g/mol. |
Physicochemical Information
| Boiling point | 64.5 °C (1013 hPa) |
| Density | 0.792 g/cm3 (20 °C) |
| Evaporation number | 1.9 |
| Explosion limit | 5.5 - 44 %(V) |
| Flash point | 9.7 °C |
| Ignition temperature | 420 °C DIN 51794 |
| Melting Point | -98 °C |
| Vapor pressure | 128 hPa (20 °C) |
Toxicological Information
| LD 50 oral | LD50 Rat 5628 mg/kg |
| LD 50 dermal | LD50 Rabbit 17100 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
Specifications
| Purity (GC) | ≥ 99.9 % |
| Evaporation residue | ≤ 0.0002 % |
| Water | ≤ 0.01 % |
| Colour | ≤ 10 Hazen |
| Acidity | ≤ 0.0002 meq/g |
| Alkalinity | ≤ 0.0002 meq/g |
| Fluorescence (as quinine at 254 nm) | ≤ 1.0 ppb |
| Fluorescence (as quinine at 365 nm) | ≤ 1.0 ppb |
| Transmission (at 205nm) | ≥ 10 % |
| Transmission (at 210 nm) | ≥ 30 % |
| Transmission (at 220 nm) | ≥ 60 % |
| Transmission (at 230 nm) | ≥ 80 % |
| Transmission (at 240 nm) | ≥ 90 % |
| Transmission (at 250 nm) | ≥ 95 % |
| Transmission (from 260 nm) | ≥ 98 % |
| Absorbance (at 205nm) | ≤ 1.00 |
| Absorbance (at 210 nm) | ≤ 0.52 |
| Absorbance (at 220 nm) | ≤ 0.22 |
| Absorbance (at 230 nm) | ≤ 0.10 |
| Absorbance (at 240 nm) | ≤ 0.05 |
| Absorbance (at 250 nm) | ≤ 0.02 |
| Absorbance (from 260 nm) | ≤ 0.01 |
| Meet the requirements of "Specific use spectroscopy" according ACS and Reag. Ph Eur |
