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(b) An oil-water cream contains 12% (w/w) of emulsifier and has an oily phase with a required HLB of 12. The surfactants used in
(b) An oil-water cream contains 12% (w/w) of emulsifier and has an oily phase with a required HLB of 12. The surfactants used in the cream are sorbitan tristearate (Span 65) and polyoxyethylene sorbitan monopalmitate (Tween 40). If you prepare 250 g of the o/w cream, estimate the mass of each surfactant that is required to prepare the cream. [HLB (Span 65) = 2.1; HLB (Tween 40) = 15.6.]
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B HLB Value and Calculation HLB According to Griffin the amphiphilic molecule is the value obtained by dividing the weight percentage of the hydrophil...
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Business Statistics A First Course
Authors: David M. Levine, Kathryn A. Szabat, David F. Stephan
7th Edition
9780321998217, 032197901X, 321998219, 978-0321979018
