Subcategory & Sub-subcategory
Product Name
HPLC Methanol Solvents
Specifications
- IUPAC Name: methanol
- CAS Number: 67-56-1
- Chemical Formula: CH4O
- Molecular Weight: 32.042
- EC Number: 200-659-6
- Purity: >=99.90% (GC assay)
- Formulation Type: Colorless volatile liquid
- Application: HPLC solvent; also used as antifreeze, fuel, denaturant
- Regulatory Status: Chemical grade
- Test Items: Specification
- Assay CH3OH (by GC) , ω / %: 99.90 min
- Density (20℃) , ρ / (g/mL): 0.791~0.793
- Chromaticity (APHA): 10 max
- Solubility in water: Pass test
- Residue on evaporation , ω / %: 0.0003 max
- Water H2O (by K-F) , ω / %: 0.03 max
- Titrable Acid(H+) , b / (mmol/g): 0.0002 max
- Titrable Base(OH-) , b / (mmol/g): 0.00008 max
- Carbonylic compounds(CO) , ω / %: 0.003 max
- Readily carbonizable substances: Pass test
- Substances reducing KMnO4: Pass test
- UV Absorbance(1cm cell vs. water): at 205 nm
- at 210 nm: 0.60 max
- at 220 nm: 0.30 max
- at 225 nm: 0.25 max
- at 230 nm: 0.12 max
- at 240 nm: 0.05 max
- at 250 nm: 0.02 max
- at 260~400 nm: 0.01 max
- Gradient Elution Test at 254nm/ (mAU): 2 max
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