DRBOB@VERDIENT.BIZ
Forum Replies Created
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@Chemist77 I was trying to understand through process how SA is so low ie 85%, Most if not all LAS is made via oleum or SO3 with conversions of alkyl benzene to sulphonic acid of 98-99% so most products marketed are 96% active with 2% free oil (as alkyl benzene).Supplier could be using a process I am not not familiar with (doubtful) or there is a mistake on Cof A/analysis.All of the foregoing relate to the source of the ABS.
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Use a 96% active linear dodecylbenzene sulfonic acid and neutralize during formulation with NaOH
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Your real concentration expressed as sodium ABS is 10 x 0.85 + 1.8 = 10.3 kg/100kg which is 10.3%. Your sulphonic acid conc is low at 85%.As I recall even via Oleum should be >90% and via SO3 even higher unless your supplier is using chlorosulphonic acid.
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We have evaluated both neat and in a cream base on 2-3 people:the VBE is as Bill Toge describes (and then some on female/s) whereas the new product is only slightly warming at equivalent concentrations.perhaps a blend may be best route to achieve desired sensorials.
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The sulphonic acid as alkyl benzene sulfonate is neutalized with sodium hydroxide (or another base) in-situ while formulating into dishwashing products; so what you refer to as soda is sodium which is included in the active component ie sodium alkylbenzene sulfonate.
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BeLassi—-Dehyquart Guar is similar and if you can get it should work fine for you? https://www.ulprospector.com/en/na/PersonalCare/Detail/75/132896/Dehyquart-Guar-HP?st=1
@Toge but hydroxypropyltrimonium guar is a quat???
QUAT is a vague generalization as many cationic polymers are not necessarily functionally equivalent to monomeric cationic surfactants such as BTMS. -
Hydroxtpropyltrimonium Guar will give you a good conditioning effect similar to quats particularly body and softness and wet/dry combing.Can also add oils olive oil ; Olivem 1000.
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UV Cut TiO2-55-CG
Grant Industries meets non-nano requirements -
Ditto-soap is a stinger which cannot (at least to my knowledge) be mitigated.
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Cationic guar should definitely help with wet/dry combing and leave hair soft and smoothFilm which does not build up lays the cuticle down.
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Yes finish at Ph 7 which will make it mild to both skin and eyes:add either or both of glycerin and/or Hydrolized oat protein.If sting persists, you are using too aggressive a surfactant system and if so add incremental amounts of polysorbate 20 or if you can get it Poe 80 sorbitan monolaurate.
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only if you are right-handed:lefties throw it over the right shoulder
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NJ Where are you????
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Actually salt lowers cmc of SAA which lowers the interfacial Tension:Unfortunately it can also cause a catotrophic phase transition leading to eventual Oswald Ripening followed by coalesce and instability!
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Try BASF
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No either or both are pseudo plastic however mainly the HPMC.Personally we prefer Carbopol SF -1 for both viscosity/Rheology.
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No glycolic is exfoliating/peeling outer epidermis/stratum corneum and as a result you are not likely to see a difference in irritation.
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Sounds like you are trying to control foam in -process and if so add SLES sub-surface with very slow/minimal agitation.
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First try using citric acid to adjust Ph and do a knockout with Cosqard first.
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Addition of stearic acid at 1-5% lowered bar Ph from 10-10.5 to 8-8.5.Does make a firmer/harder bar but you can raise water slightly (1-2%) to compensate if needed.Another way is to add 1% hydrolyzed oat protein to get perceived lather boost and skin feel Doing both may give you what you are looking for.although never added HOP to superfatted bar i have done it on regular 80/20 Tallow/coco and consumer tested on at least 500 subjects both in US and abroad with positive results in double blind crossovers.
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No method validation is a reliable analytical method for percent API before you produce.
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The skin irritation from most any alkaline soap is due to the PH which overrides any oils butters/vitamins etc for skin benefits.You can blend for some mildness for example 80/20 Tallow/coconut is milder than 70/30 and/or you can reduce Ph by superfatting ie add 1-5% stearic acid to lower the PH. A rule of thumb -the higher the alkyl chain length the milder but the trade-off is you lose lather.
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We specify that the client owns the formula/process and IP in routine formulation/PD.If we have a specific patent/technology we negotiate a payment/royalties for rights to market;This can be either exclusive or non-exclusive depending upon the agreement.