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hand burning issue in labsa
I have to ask that how can i improve labsa96% quality to minimize hand burning problem.
What are the reasons of hand burning by labsa used in detergents, while the h2so4 content is about 1% or 1.1% -
5 Replies
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LABS Acid should be neutralised when used in detergent formulations using Sodium Hydroxide or TEA or similar. There should be no issues with burning when it is neutralised.
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@ozgirl does hand burning not depend upon the labsa specification? Like active matter, sulfuric content, acid value ?
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It is my understanding that it is the LABS acid that causes the product to be classified as corrosive (with the hand burning symbol), although the free sulfuric acid would also contribute. The other specifications really don’t make that much difference.
https://echa.europa.eu/substance-information/-/substanceinfo/100.079.513
Once you neutralize the LABSA then your classification is then based on the neutralized product. -
Whats the procedure to neutral the labsa, if i add 50% concentrated NaOH in labsa, it becomes viscous type material like SLES.
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LABSA is usually neutralized during the manufacture of the detergent.
Here is an example
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