China (Mainland) 
white or almost white powder
assay(gc) ≥99.0%
dissociatei alkal ≤1.0%
shelf life:1year
storage method:steel and plastic drums lined with a layer of pe bag and high waterproof bag,being sealed with full of nitrogen.
storage enviroment:temperature:＜40℃
relarive humidty:＜35%
if the storage condition could not reach the standards,pls used up as soon as possible in 6 months.
use:widely applied as a strong alkali in condesation,rearrangement an open loop reactions of organic synthesis in the chemical,medical,and agricultural industries.