Specifications as below:
Item | Index | ||||
Reagent grade | Electronic grade | Industrial grade | Common grade | ||
Purity/(wt%) | ≥99.8 | ≥99.5 | ≥99 | ≥98.5 | |
Moisture/(wt%) | ≤0.03 | ≤0.05 | ≤0.1 | ≤0.3 | |
Color Hazen | ≤15 | ≤20 | ≤30 | ≤40 | |
Density (D420g/ml) | 0.990~0.999 | ||||
Refractivity(ND20) | 1.465~1.467 | ||||
pH Value(10%,v/v) | 7~10 | —— | |||
Free amines/(wt%) | ≤0.005 | ≤0.01 | ≤0.02 | —— |