Relative Molecular Weight ：41.96 CAS NO：1310-66-3 Properties: white small monoclinic crystal,piquancy, alkali, easy to absorb CO2 and water,dissolve in water,dissolve a bit in alcohol.Specific gravity 2.41. melting point 471 ℃. Appearance requirement: white crystal grainyno variednessno agglomertionno sundries. Quality Standard(GB/T 26008-2010): Packing: in two layers of polyethylene bags,covered by plastic woven bags.25kg N.W.per bag.Both neutral packing and packing for sale in domestic market.