Air freshener formulation - Chemists Corner

General

Air freshener formulation

Posted by Fekher on December 8, 2020 at 10:11 am

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
Preservative
Colorant
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.

Abdullah replied 3 years, 1 month ago 7 Members · 9 Replies
9 Replies

chemicalmatt

Member
December 9, 2020 at 3:52 pm

Fekher, please instruct us. “Emulgate” is ?? Also, should your product spray or be sedentary to diffuse into room?
Fekher

Member
December 9, 2020 at 4:49 pm

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.
singhc10

Member
December 10, 2020 at 12:45 pm

@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
Fekher

Member
December 10, 2020 at 2:46 pm

@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.
Fekher

Member
December 12, 2020 at 10:11 am

@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.
kabilboy

Member
October 28, 2021 at 12:29 pm

I don’t know bout your air freshener, but I also have a wonderful homemade spray recipe that you will love! You should add about 25 drops of your favorite essential oil to 2 tablespoons of baking soda and stir to combine. Lemon and lavender are excellent choices, but eucalyptus is my favorite because of the refreshing scent. Pour the baking soda and essential oil mix into the water and stir. Then funnel the water into your spray bottle. Seal tightly and give the bottle a good shake to combine ingredients thoroughly. This works wonders, I swear! I use it as a smoke odor eliminator car.
Microformulation

Member
October 28, 2021 at 1:55 pm

kabilboy said:

I don’t know bout your air freshener, but I also have a wonderful homemade spray recipe that you will love! You should add about 25 drops of your favorite essential oil to 2 tablespoons of baking soda and stir to combine. Lemon and lavender are excellent choices, but eucalyptus is my favorite because of the refreshing scent. Pour the baking soda and essential oil mix into the water and stir. Then funnel the water into your spray bottle. Seal tightly and give the bottle a good shake to combine ingredients thoroughly. This works wonders, I swear! I use it as a smoke odor eliminator car.

That “recipe” needs some technical work before you could even consider it a Formula. There are so many issues.
ketchito

Member
October 29, 2021 at 11:58 am

singhc10 said:

@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

I agree with @@singhc10 This mixtures are abalance between water-alcohol-solubilizer-fragrance. If you use high amount of fragrance (especially heavy ones), you have to either increase the amount of solubilizer (which increases foaming and doesn’t let the fragrance bloom), or increase your alcohol level (which allows you to use less solubilizer, helping fragrance to perform when applied). Try with either PEG-40 HCO or/and Polysorbate 20, they are cheap and very effective.
Abdullah

Member
October 30, 2021 at 1:55 am

Polyglyceryl-10 Caprylate