【Technical index】
Appearance 　　　　　　　colorless or light yellow transparent liquid
Active matter (%) 　　　　　≥20.0
PH (% Aq. solution)　　　　 2.9~3.7
Density (g/cm3, 20℃) 　　　1.20~1.30

【Packing and storage】
25kg or 200kg colored plastic drum, Stored in dark and ventilating place, Storage period is three months.