Re: polysorbate and HLB

[Guest guest]

Angie,

There is such a chart available from ICI now named Uniqema. You need to call

and request the booklet on the HLB system.

Young

KY Labs

Innovators of Fine Personal Care Products

www.kylabs.com

polysorbate and HLB

n a message dated 8/7/01 6:33:50 AM Pacific Daylight Time, @...

writes:

To make the sorbitan ester the starting material is sorbitol

anhydride, which is two moles of sorbitol minus one mole of water that is

reacted with the various fatty acids. This material is then reacted with

ethylene oxide to form the finished product

The different chain lengths of the fatty moiety in these esters are

responsible for the efficiency of the emulsifier in different systems. This

chain length also changes the HLB of the molecule.

Hi and all,

So do I understand that it is the particular fatty acid that determines

which

polysorbate you come up with? Where does the ethylene oxide come in to

play?

After looking around a bit, I figured out that there is not really alot of

difference between the polysorbates, in terms of the HLB. Also, the

particular fo/eo appears to be an important variable in which to choose, if

any. Something that would be useful I think would be a chart listing the

HLB of the more commonly used emulsifiers---is there any such thing?

Thanks,

Angie

The Herbarie

at Stoney Hill Farm

Angie

The Herbarie

at Stoney Hill Farm

[Guest guest]

>Something that would be useful I think would be a chart listing the

>HLB of the more commonly used emulsifiers---is there any such thing?

Here's a start. Sorted by HLB

Sorbitan Trioleate (HLB = 1.8)

Glycol Stearate (HLB = 2)

Glyceryl Stearate (HLB = 3.6)

Sorbitan Sesquioleate (HLB = 3.7)

Sorbitan Monooleate NF (HLB = 4.3)

Sorbitan Oleate (HLB = 4.3)

Sorbitan Monostearate NF (HLB = 4.7)

Sorbitan Stearate (HLB = 4.7)

Oleth-2 (HLB = 4.9)

Steareth-2 (HLB = 4.9)

Ceteth-2 (HLB = 5.3)

Glyceryl Stearate SE (HLB = 5.8)

PEG-4 Dilaurate (HLB = 6)

Methyl Glucose Sesquistearate (HLB = 6.6)

Sorbitan te (HLB = 8.6)

PEG-40 Sorbitan Peroleate (HLB = 9)

Laureth-4 (HLB = 9.7)

PEG-25 Hydrogenated Castor Oil (HLB = 10.8)

Glyceryl Stearate (and) PEG-100 Stearate (HLB = 11)

Polysorbate 85 (HLB = 11)

Oleth-10 (HLB = 12.4)

Ceteth-10 (HLB = 12.9)

PEG-8 te (HLB = 13)

Polysorbate 60 (HLB = 14.9)

Isosteareth-20 (HLB = 15)

PEG-20 Methyl Glucose Sesquistearate (HLB = 15)

Polysorbate 80 (HLB = 15)

Oleth-20 (HLB = 15.3)

Steareth-21 (HLB = 15.5)

Ceteareth-20 (HLB = 15.7)

Ceteth-20 (HLB = 15.7)

Isoceteth-20 (HLB = 15.7)

Polysorbate 20 (HLB = 16.7)

Laureth-23 (HLB = 16.9)

PEG-100 Stearate (HLB = 18.8)

PEG-80 Sorbitan te (HLB = 19.1)

HTH

Maurice

------------------------

Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com

[Guest guest]

> After looking around a bit, I figured out that there is not really alot of

>difference between the polysorbates, in terms of the HLB.

Polysorbate 20 (HLB = 16.7)

Polysorbate 60 (HLB = 14.9)

Polysorbate 80 (HLB = 15)

Polysorbate 85 (HLB = 11)

>So do I understand that it is the particular fatty acid that determines which

>polysorbate you come up with? Where does the ethylene oxide come in to play?

Here is the same list of emulsifiers and HLBs that I posted earlier

this evening but this time the list is sorted by INCI names. If you

look at the patterns in nomenclature, you'll see that the HLB increases

with ethoxylation. The suffix -eth indicates ethoxylation and the

numeral that follows indicates the average number of moles of Ethylene

Oxide (EO) can be found on that molecule.

Ergo, as you increase the number of moles of EO, you also increase its

water loving (hydrophilic) nature or character.

Ceteareth-20 (HLB = 15.7)

Ceteth-10 (HLB = 12.9)

Ceteth-2 (HLB = 5.3)

Ceteth-20 (HLB = 15.7)

Glyceryl Stearate (HLB = 3.6)

Glyceryl Stearate (and) PEG-100 Stearate (HLB = 11)

Glyceryl Stearate SE (HLB = 5.8)

Glycol Stearate (HLB = 2)

Isoceteth-20 (HLB = 15.7)

Isosteareth-20 (HLB = 15)

Laureth-23 (HLB = 16.9)

Laureth-4 (HLB = 9.7)

Methyl Glucose Sesquistearate (HLB = 6.6)

Oleth-10 (HLB = 12.4)

Oleth-2 (HLB = 4.9)

Oleth-20 (HLB = 15.3)

PEG-100 Stearate (HLB = 18.8)

PEG-20 Methyl Glucose Sesquistearate (HLB = 15)

PEG-25 Hydrogenated Castor Oil (HLB = 10.8)

PEG-4 Dilaurate (HLB = 6)

PEG-40 Sorbitan Peroleate (HLB = 9)

PEG-8 te (HLB = 13)

PEG-80 Sorbitan te (HLB = 19.1)

Polysorbate 20 (HLB = 16.7)

Polysorbate 60 (HLB = 14.9)

Polysorbate 80 (HLB = 15)

Polysorbate 85 (HLB = 11)

Sorbitan te (HLB = 8.6)

Sorbitan Monooleate NF (HLB = 4.3)

Sorbitan Monostearate NF (HLB = 4.7)

Sorbitan Oleate (HLB = 4.3)

Sorbitan Sesquioleate (HLB = 3.7)

Sorbitan Stearate (HLB = 4.7)

Sorbitan Trioleate (HLB = 1.8)

Steareth-2 (HLB = 4.9)

Steareth-21 (HLB = 15.5)

Maurice

------------------------

Maurice O. Hevey

Convergent Cosmetics, Inc.

http://www.ConvergentCosmetics.com