Description:
This product is white crystal powder with the melting point 248℃(partly decompose)and  the boiling point  260℃(decompose).It is strong acid and irrtant.It is easily soluble in hot water and dilute acid,soluble in ether,lightly soluble in cold water.It is used in colorimetric detection of aldehyde and pentosan.It is used in organic synthesis.This product should be sealed.