
| Product Name | Methanol, ACS spectrophotometric grade, ≥99.9% |
| Product Number | 154903 |
| Product Brand | Sigma-Aldrich |
| CAS Number | 67-56-1 |
| Molecular Formula | CH3OH |
| Molecular Weight | 32.04 |
| TEST | SPECIFICATION |
| Appearance (Color) | Colorless |
| Appearance (Form) | Liquid |
| Infrared spectrum | Conforms to Structure |
| UV Absorbance 400nm | ≤0.01 |
| UV Absorbance 280nm | ≤0.01 |
| UV Absorbance 260nm | ≤0.04 |
| UV Absorbance 240nm | ≤0.10 |
| UV Absorbance 230nm | ≤0.20 |
| UV Absorbance 220nm | ≤0.40 |
| UV Absorbance 210nm | ≤0.80 |
| UV Absorbance 205nm | ≤1.00 |
| Purity (GC) | ≥99.90 % |
| Carbonyl compounds | ≤0.001 % |
| each of Acetone, Formaldehyde, and Acetaldehyde | |
| Water (by Karl Fischer) | ≤0.1 % |
| Residue on Evaporation | ≤0.001 % |
| Color Test | ≤10 APHA |
| Solubility | Pass |
| Substances Darkened (by H2SO4) | Pass |
| Substances reducing MnO4 | Pass |
| Titratable acid | ≤0.0003 MEQ/g |
| Titratable base | ≤0.0002 MEQ/g |
| Meets ACS Requirements | Current ACS Specification |
| 10th Edition | |
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