Concord Technology (Tianjin) Co.,Ltd
We are professional supplier of HPLC Methanol,HPLC Acetonitrile,Karl Fischer Reagents,HPLC Solvents.
Business Type:Manufacturer
Country/Region:China
Ddu Verified
HOT Rank
HPLC Gradient Grade Methanol
CAS.No: 67-56-1
Molecular formula: CH3OH
Molecular weight: 32.04.
Density(20): 0.792g/ml.
Refractive Index: 1.3288
TEST ITEMS | SPECIFICATION | ||
1 | Assay (GC) , ω / % | ≥99.9 | |
2 | Density(20℃) , ρ / (g/mL) | 0.791~0.793 | |
3 | Residue on evaporation,ω / % | ≤0.0005 | |
4 | Water (H2O),ω / % | ≤0.05 | |
5 | Solubility with H2O | Pass test | |
6 | Titrable Acid(H+) / (mmol/g) | ≤0.0004 | |
7 | Titrable Base(OH-) / (mmol/g) | ≤0.00008 | |
8 | UV Absorbance (1cm cell vs. water) | 205 nm | ≤1.00 |
210 nm | ≤0.60 | ||
220 nm | ≤0.30 | ||
230 nm | ≤0.15 | ||
240 nm | ≤0.05 | ||
254 nm | ≤0.01 | ||
260 nm | ≤0.01 | ||
9 | Gradient Elution Test at 254nm(AU) | ≤0.005 | |
