Methanol
SIGALD/646377 - HPLC Plus, ≥99.9%
Synonym: Methyl alcohol
CAS Number: 67-56-1
Empirical Formula (Hill Notation): CH4O
Molecular Weight: 32.04
EC Number: 200-659-6
MDL Number: MFCD00004595
Linear Formula: CH3OH
Product Type: Chemical
| λ | 1 cm path, H2O reference |
| assay | ≥99.9% |
| autoignition temp. | 725 °F |
| bp | 64.7 °C |
| 64.7 °C (lit.) | |
| color | APHA: ≤10 |
| density | 0.791 g/mL at 25 °C |
| 0.791 g/mL at 25 °C (lit.) | |
| evapn. residue | <0.0001% |
| expl. lim. | 36 % |
| form | liquid |
| grade | HPLC Plus |
| HPLC-gradient | ≤2 mAU at 230 nm |
| ≤5 mAU at 254 nm | |
| impurities | ≤0.0002 meq/g Titr. base |
| ≤0.0003 meq/g Titr. acid | |
| ≤0.001% Cabonyl Compounds | |
| <0.05% water | |
| InChI | 1S/CH4O/c1-2/h2H,1H3 |
| InChI key | OKKJLVBELUTLKV-UHFFFAOYSA |
| mp | −98 °C (lit.) |
| Quality Level | 100  |
| refractive index | n |
| SMILES string | CO |
| solubility | benzene: miscible(lit.) |
| ethanol: miscible(lit.) | |
| water: miscible(lit.) | |
| technique(s) | HPLC: suitable |
| UV absorption | λ: 205 nm Amax: 1.0 |
| λ: 210 nm Amax: 0.80 | |
| λ: 220 nm Amax: 0.20 | |
| λ: 230 nm Amax: 0.10 | |
| λ: 250 nm Amax: 0.02 | |
| λ: 400 nm Amax: 0.005 | |
| vapor density | 1.11 (vs air) |
| vapor pressure | 410 mmHg ( 50 °C) |
| 97.68 mmHg ( 20 °C) |
| Application: | Suitable for HPLC, spectrophotometry, and some LC-MS applications |
| General description: | Methanol (MeOH) is an organic solvent with a wide range of industrial applications. It is the main component of lithium batteries. It can be prepared by hydrogenation of CO2 under various conditions. Shape-selective zeolite-assisted transformation of methanol to C2-C10 hydrocarbons has been studied. MeOH is a toxic alcohol employed for denaturing ethyl alcohol. A study reports the preparation of biodiesel from canola oil using methanol under supercritical conditions. |
| Legal Information: | Pure-Pac is a registered trademark of Sigma-Aldrich Co. LLC |
| Other Notes: | Pure-Pac® II containers require the Micromatic MacroValve coupler for dispensing solvents, Z560723. |
| Packaging: | 1, 6×1, 4×2, 4, 4×4 L in glass bottle |
| Packaging: | 20 L in Nowpak™ II |
| Packaging: | 20, 50 L in Pure-Pac™ 2 |
| Packaging: | 200 L in Pure-Pac™ 2 |
| Packaging: | 200 L in stainless steel drum |
| Packaging: | 56, 200 L in Pure-Pac™ 1 |
| Packaging: | View returnable container options . |
| Preparation Note: | Product filtered through a 0.2 μm filter |
| Symbol |    GHS02,GHS06,GHS08 |
| Signal word | Danger |
| Hazard statements | H225 - H301 + H311 + H331 - H370 |
| Precautionary statements | P210 - P280 - P301 + P310 + P330 - P302 + P352 + P312 - P304 + P340 + P311 |
| Hazard Codes | F,T |
| Risk Statements | 11-23/24/25-39/23/24/25 |
| Safety Statements | 7-16-36/37-45 |
| RIDADR | UN1230 - class 3 - PG 2 - Methanol |
| WGK Germany | WGK 2 |
| Flash Point(F) | 49.5 °F - closed cup |
| Flash Point(C) | 9.7 °C - closed cup |
| Purity | ≥99.9% |
| bp | 64.7 °C (lit.); 64.7 °C |
| mp | −98 °C (lit.) |
| Density | 0.791 g/mL at 25 °C (lit.); 0.791 g/mL at 25 °C |
| Refractive Index | n |
| UNSPSC | 12190000 |