Chitosan Quaternary Ammonium Salt ,(Quaternary chitosan)
Colour and lustre:White or yellowish
State:Granular powder
Smell:With its own inherent smell, no odor
Impurities:No visible foreign matter
Degree of substitution（%）:≥90
Viscosity( mPa.s):As claimed
Moisture(%):≤10.0
Ash Content(%):≤1.0
Particle Size:≥60
Insoluble(%):≤1.0
pH value:6.5-8.5
Pb(mg/kg):≤10
As(mg/kg):≤1.0
