Formula ( MOL) C1SO2OH CAS Number 7790-94-5 Density 1.75 g cm3 Physical Appearance Colourless to light yellow liquid Specific Gravity 1.03 Weighted Average Purity 98% by mass (Minimum) Sulphuric Acid & Free SO3 2% by mass (Maximum) Free HCL 0.5% by mass (Maximum) Total Installed Capacity 45,000 MT Annum End use Industry Dye Intermediates Dispatch mode ISO containers or tanker load