CAS No.:1338-39-2 Molecular Weight: 346.46 Property: Span 20 is amber to brown oily liquid. non-toxic and odorless. Span 20 is slightly soluble in isopropanol, tetracarp, xylene, cotton seed oil and mineral oil, slightly soluble in liquid paraffin, and insoluble in water, HLB=8.6. Usage: Span 20 is mainly used in medicine, cosmetics, textiles etc. as water/oil type emulsifier, wetting agent and lubricant. Packing and Storage: 200kg iron drum/plastic drum. Handle with care, Span 20 should be stored in cool, dry and draughty place. Shelf life is 2 years. Then, Span 20 can still be used if qualified after re-check. 200kg iron drum/plastic drum.