... 3:ISO9001:2000 CIQ SGS HOT Size , mmWithin the limit of the size %2.5mm Siftage, %Ash,%80-200≥85≤5 ... or black solid, purple when its purity is higher, the specific gravity is 2.22(18), melting point is 2300, the product ... , octanol, trichloride ethylene etc. Also used as desulfurizer and dehydrant of steel and for cutting and welding metals.Should be packed ...