... , it is allotrope of common sulfur Insoluble Sulphur (IS-HD-8510)Properties:Yellow powder with slight odor, non-toxic. IS-HD-8510 ... -9naphthenic oil: 64742-52-5Specification:Appearance (visual inspection):Non-rised yellow powderOil Content%10.0±1.0Element Sulfur content%90.0 ... months.Package:25KG/BAG, 900KG/PALLET,18MT/20'FCL insoluble sulphur (Polymeric Sulfur: 9035-99-8)