Why does hand soap "pop" the bubble bath bubbles in my bath?

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paul.fr

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If you run a bar of soap through bubbles created by bubble bath, the bubbles start popping. Why is that?

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Offline Ians Daddy

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #1 on: 30/06/2009 17:42:05 »
There may be a chemist here to better answer your question, but I'll take a swing at it.
I know that you can catch a bubble if the catching surface has a coating of the same bubble material. It could be that the chemical breakdown of the two soaps differ. The bar soap would have a different ph level. Maybe more astringent.
When cooking rice or pasta, if it starts to boil over, you touch it with a little butter (an oil, and soap is an oil too) and it goes down. Or the head on a beer goes down if touched by the oil from your finger. This may be the same concept or could be way off, but it's how I imagine it.

Just a thought.
 

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Offline Edster

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #2 on: 01/07/2009 17:30:19 »
The bar is hydrophilic and the bubbles have water content.
« Last Edit: 01/07/2009 17:37:25 by Edster »

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lyner

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #3 on: 02/07/2009 12:12:24 »
Quote
Or the head on a beer goes down if touched by the oil from your finger.
What are you doing washing your hands in beer? You're supposed to DRINK the stuff!!!

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Offline Bored chemist

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #4 on: 02/07/2009 19:31:04 »
I don't know the answer to the question but re "you touch it with a little butter (an oil, and soap is an oil too)". Butter isn't an oil and nor is soap.
Please disregard all previous signatures.

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Offline Ians Daddy

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #5 on: 03/07/2009 20:02:23 »
Hey, if I can use it as a lube... it's oil.
 

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Offline chris

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #6 on: 03/07/2009 22:55:07 »
Ian's Daddy - you're back! Fantastic! It's only been 6 years!

Chris
I never forget a face, but in your case I'll make an exception - Groucho Marx

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Offline Ians Daddy

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Why does hand soap "pop" the bubble bath bubbles in my bath?
« Reply #7 on: 07/07/2009 00:41:43 »
Only 6 years?! Hell, I've made girls wait longer than that.
It's good to be back.

Did I miss anything?