Air freshener formulation

FekherFekher Member, Professional Chemist

  Hi all, I want your help for understanding the happened phenomenon and how to solve it , if it is possible:
Perfume : 4 %
Emulgate: 4%
D.Water : Qsp
 So for many perfume the formulation works good just for one perfume I get something near to floculation of foam , so just for more details when I make agitation this foam is soluble with inferior phase and the inferior phase move from very low transparency to opac then without agitation it returns to two phase, really it is new and strange phenomen for me because it seems like two phase mixcible with agitation not without and also why the superior phase is foam not oil for example I guess experts can help here. 


  • chemicalmattchemicalmatt Member, Professional Chemist
    Fekher, please instruct us. "Emulgate" is ??  Also, should your product spray or be sedentary to diffuse into room?
  • FekherFekher Member, Professional Chemist
    edited December 2020
    Thanks @chemicalmatt actually the trade name is emulgate EL 65 supposed to be effective solubilizer (I made some reaserchment on the net about it and I did not any information about it ) and the product is spray.
  • @Fekher I have worked on an Air Freshener using PEG-40 Hydrogenated Castor Oil as solubilizer. To solubilize a fragrance, the ratio of fragrance to solubilizer atleast be 1:4, if you are solubilizing an essential oil, then you would need even more solubilizer. Adding more solubilizer to your current formulation would make you air freshener too foamy.
    In my opinion, you need to decrease your fragrance levels and  you can add ethanol to solubilize the fragrance and decrease foam
  • FekherFekher Member, Professional Chemist
    edited December 2020
    @singhc10 thanks for the feedback, so adding alcohol can solve the problem but it increases the cost and even decrease the longevity of perfume for that I gone with no alcoholic product, for solubilizer peg 40  is not the best what I use I guess is better and there is no rule for solubilizer perfume Evry perfume has specific value, so for my solubilizer in some perfume just 1:1 ratio can lead to transperent product so the perfume is totally dissolved. 
  • FekherFekher Member, Professional Chemist
    edited December 2020
    @chemicalmatt searching on the net I find something EMULGANTE EL 65 I guess the supplier made an error in the name so it is a product made from Castor  oil and polyethyleneglycol ether. 
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