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Question

Posted on: August 18 2017

A suspension with sulfur, talc and glycerin and water viscous and not stable?

Precipitated sulfur 5g, zinc oxide 20g, talk 20g, glycerin 15g, neomycin sulfate 0.4 g, water Bf5 ad 100g Too thick to deliver in bottle but must be shaken for separation in 2 phases

Answer

A first case; This is noticeable is the presence of sulphur, which is a hydrophobic substance, which does not moisten itself by water. Therefore, we are going to add the mixture sulfur glycerin   a few G Tween 80. In comparison with the water paste of the TMF, the quantities are significantly lower so that there is a possibility that some water separates itself on the surface. We can avoid this by adding colloidal silicon dioxide or bentonite (or Veegum). I suspect that 2 to 3% will suffice. Add a quantity of 1 G and wait for the reultate to finish. Once no water separation occurs, no additional need to be added.