Content ≥99.7%
Density (20 ℃) 0.789-0.791g/mL
Evaporation residue ≤0.001%
Moisture content ≤0.3%
Methanol ≤0.05%
Isopropanol ≤0.01%
Carbonyl compounds ≤0.003%
Carbonizable substances qualified
Mixing experiment with water qualified
Acidity (calculated as H) ≤0.0004 mmol/g
Alkalinity (calculated as OH-) ≤0.0001 mmol/g
Reduction of potassium permanganate substance (calculated as O) ≤0.00025%