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SLS + SLES dishwash irritancy ?
Has anyone tried SLS+SLES based liquid dishwash or laundry detergents?
I just tried replicating this formula with
15% active SLS
9% active SLES
2% propylene glycol
https://www.colonialchem.com/fullpanel/uploads/files/5012-liquid-hand—dish-soap-concentrate-sles-lo—-sls-.pdf
No lauramine oxide or Sodium chloride was added.While it feels way less irritant than those alkylbenzene sulfonates, it still feels a bit irritant
Maybe because SLS is higher than SLES?
Some other formulations do so, like this one with 7.5% active SLS, 6.75% active SLES
http://docs.pilotchemical.com/QMS/Public_Formulary/hc-dw-0036.pdfWill try adding CAPB to see it makes it less irritant.
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5 Replies
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SLES-2 or SLES-3 both have milder irritancy profiles than SLS. Reverse the ratio. Adding CAPB will help mollify too: good idea. Should thicken up your solution also, if that is OK.
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chemicalmatt said:SLES-2 or SLES-3 both have milder irritancy profiles than SLS. Reverse the ratio. Adding CAPB will help mollify too: good idea. Should thicken up your solution also, if that is OK.
Thanks.
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You can add 1% CDEA ! It has a very good irritation potential and foaming capacity . Today I made a batch with NaOH and Acid Slurry and added CDEA . It is working fine . I used urea instead of NaCl . NaCl makes it harsh .
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@AZiz:while Salt is used to improve the Viscosity, some formulators use Urea. What is the purpose of using Urea here?
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Urea is cleaning agent , as well as it increase viscosity . You may do some research by a small quantity of your liquid and urea . You may also compare NaCl and Urea separately for their harshness and irritation .
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