Methanol, ACS USP/NF Grade
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Methanol, ACS USP/NF Grade
Methanol
REAGENT ACS USP/NF Grade Monographs
| Test |
Monograph |
Limits |
Typical Lot Analysis |
| Assay (corrected for water), min |
ACS
NF |
99.8%
99.9% |
99.9% |
| Identification A(IR) |
NF |
To Pass |
Pass |
| Identification test B(GC) |
NF |
To Pass |
Pass |
| Acidity |
NF |
NMT 0.45mL 0.02N NaOH required |
Pass |
| Titrable Acid, max |
ACS |
0.0003meq/g |
0.0002meq/g |
| Titrable Base, max |
ACS |
0.0002meq/g |
0.0001meq/g |
| Alkalinity (as ammonia) |
NF |
NMT0.20mL 0.02N H2SO4 required(3ppm max) |
< 3 ppm |
| Readily Carbonizable Substances |
NF |
To Pass |
Pass |
| Carbonyl Compounds, max |
ACS |
Acetone 0.001%
Formaldehyde 0.001%
Acetaldehyde 0.001% |
Pass |
| Acetone & Aldehydes (as Acetone) |
NF |
0.003% |
<0.003% |
| Readily Oxidizable Substances |
NF |
To Pass |
Pass |
| Non-Volatile Residue, max |
NF |
NMT 2mg (0.001%w/w) |
0.0002% |
| Residue After Evaporation, max |
ACS |
0.001% |
<0.001% |
| Color (APHA), max |
ACS |
10 |
<10 |
| Substances Darkened by H2SO4 |
ACS |
To Pass |
Pass |
| Substances Reducing KMnO4 |
ACS |
To Pass |
Pass |
| Water, max |
NF, ACS |
0.10% |
0.01% |
| Solubility In Water |
ACS |
To Pass |
Pass |