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Components dissolved/damaged by flux cleaners?
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Mechatrommer:
right. now thats a nice goggle we should be wearing when handling diaper i should have done this when my kids was very small :palm: and since sodium polyacrylate is analogous to synthetic rubber, we should be wearing that too when handling electronics. thinking about it, i think there are few interesting experiments... one is to turn on soldering iron and when it reaches nominal temperature just press the side of the tip to our cheek, or another experiment will be touching a live naked wire... when i said cheek or live wire so the results would be almost immediate. yeah right, electronics is life threatening hobby, get a safer one like kinder gardening.
ogden:

--- Quote from: Mechatrommer on October 06, 2018, 07:38:18 pm ---right. now thats a nice goggle we should be wearing when handling diaper i should have done this when my kids was very small :palm: and since sodium polyacrylate is analogous to synthetic rubber, we should be wearing that too when handling electronics.

--- End quote ---

You only look at the pictures (like your kids), right?  :palm:

Excerpt:

Acrylic acid is “esterified” by reacting it with alcohols such as ethanol (ethyl alcohol) or methanol. In the esterification reaction the hydrogen atom in the acidic carboxyl group (CO2H) on the acrylic acid molecule is replaced by an organic group—a methyl group (CH3) in reactions with methanol and an ethyl group (CH2CH3) in reactions with ethanol.

In case you did not know - Acrylic elastomers are called synthetic rubber as well

https://en.wikipedia.org/wiki/Acrylate_polymer#Acrylic_elastomers
Mechatrommer:
right, but he wore goggle anyway. for what chemistry i know, hydrogen is highly combustible gas i need a vacuum chamber :scared:
Cerebus:

--- Quote from: ogden on October 06, 2018, 07:10:21 pm ---
--- Quote from: Cerebus on October 06, 2018, 06:31:54 pm ---If you think differently then please cite the mechanism of action with references to a reliable source that explains it - there's enough "heard it from a bloke down the pub" physical chemistry in this thread without adding more.

--- End quote ---

Here you go:

https://www.britannica.com/science/polyacrylate

--- End quote ---

That page (about polyacrylates) says literally nothing about the matter at hand. It does not include the word isopropanol, nor any of the variations of 2-propanol's names, or any mention of rubber swelling. The only mention of "rubber" is in the sentence "Polyacrylates can be modified to produce a specialty rubber known as polyacrylate elastomer.".


--- Quote from: ogden on October 06, 2018, 07:10:21 pm ---[edit] Mechanism does not even need citation - imagine canister with alcohol inside, it's lid with rubber seal. First week you will not notice that seal disintegrates.

--- End quote ---

Again, totally irrelevant even if it were true. We're talking about washing boards with isopropanol, not storing it in bottles. As it is, I've kept isopropanol in bottles with rubber seals  (in some case for so long that seals fail for mechanical reasons) and I've never had one "disintegrate".


--- Quote from: ogden on October 06, 2018, 07:10:21 pm ---It takes more than that. BTW exactly that happened with seal of my "lo cost" gas canister, in one year. Here we have alcohol additives in generic gasoline.

--- End quote ---

Have you been trying to drink it for the alcohol content? That might explain a thing or two. Like why you don't consider that the gasoline might have something to do with that seal disintegrating.


ogden:

--- Quote from: Mechatrommer on October 06, 2018, 08:04:53 pm ---right, but he wore goggle anyway. for what chemistry i know, hydrogen is highly combustible gas i need a vacuum chamber :scared:

--- End quote ---

Are you trolling or trying to joke? Either way I do not find it funny
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