Bleaching powder

GustavoGustavo Member
edited October 2014 in Formulating
Do any of you work with hair bleaching powder? I was introduced to a finished product but with few quality control methods and I would like to state a mesh number for the particle size in order to guarantee good dispersibility of such powder.

A supplier recommended 325 mesh for this but I thought it is too small.

Did I make it clear? Because I'm actually confused with all this. LOL
Research & Development Manager Brazil at Alfaparf Milano.
Owner and Content Director at Cosmetica em Foco.

Comments

  • Bill_TogeBill_Toge Member, Professional Chemist
    what are you planning to disperse it in?

    I agree that 325 mesh would be too fine; mixing and filling a bleaching powder that fine, on an industrial scale, would be a serious respiratory hazard and a major fire/explosion risk

    from a safety perspective, coarser is definitely better!
    UK based formulation chemist. Strongest subjects: hair styling, hair bleaches, hair dyes (oxidative and non-oxidative) I know some stuff about: EU regulations, emulsions (O/W and W/O), toothpaste, mouthwash, shampoos, other toiletries
  • I'm sorry I didn't reply earlier but thank you Bill! I took your advise in consideration and decided to change the whole specification of the powder, leaving only the silica for 325 mesh.
    Research & Development Manager Brazil at Alfaparf Milano.
    Owner and Content Director at Cosmetica em Foco.
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