High purity solvent,
Low residue, Low water,
Low UV-absorbance,
Assuring optimum sensitivity,
Lang term stability
HPLC Methanol
CAS.No:67-56-1
Molecular formula: CH3OH
Molecular weight: 32.04.
Density: 0.792(20/4C)
Refractive Index: 1.3288
TEST ITEMS | STANDARD | RESULTS |
Appearance | Clear, Colorless | Clear, Colorless |
Assay CH3OH ( by GC) % | Min 99.9 | 99.99 |
Water (by KF coulometry) % | Max 0.05 | 0.023 |
Evaporation Residue | Max 0.001 | Pass test |
Titrable Acid. mmol/g | Max 0.0005 | 0.0003 |
Titrable Base. mmol/g | Max 0.0002 | 0.00008 |
Solubility in H2O | Pass test | Pass test |
UV Absorbance,(1.00-cm cell vs.water) | ||
at 205 nm | Max1.00 | 0.708 |
at 210 nm | Max 0.60 | 0.411 |
at 220 nm | Max 0.30 | 0.197 |
at 230 nm | Max 0.15 | 0.086 |
at 240 nm | Max 0.05 | 0.033 |
at 260 nm | Max 0.01 | 0.006 |
Characteristics of Methanol
1.Methanol is the simplest alcohol, and is a light, volatile, colorless, flammable, liquid with a distinctive odor that is very similar to but slightly sweeter than ethanol (drinking alcohol).
2.At room temperature it is a polar liquid and is used as an antifreeze, solvent, fuel, and as a denaturant for ethanol.
3.It is also used for producing biodiesel via transesterification reaction.
