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As a long time Hazmat officer I can tell you that there are very few substances scarier to work with than hydrofluoric acid. I met people who had severe injuries after they had exposures. The biggest problem is that once it is absorbed in your body... it causes severe problems with your bones and can also cause heart failure.

One person I met had to have his arm below the elbow amputated after a pin prick in his glove caused an exposure. The exposure was not painful or noticed to begin with, but by the next day he had a severe problem. Despite receiving treatment after that the problems kept getting worse.

1 posted on 05/07/2022 7:51:09 AM PDT by fireman15
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To: fireman15

“They pose a potentially lethal chemical hazard to anyone working on or near EHVs.”

And if I remember right, some of them have been know to self ignite while in peoples’ garages.


35 posted on 05/07/2022 9:09:45 AM PDT by antidemoncrat ( adn)
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To: fireman15

so what about all the cordless battery tools that most households own these days? Lithium-ion batteries
Or is this not a risk also?


36 posted on 05/07/2022 9:10:49 AM PDT by Honest Nigerian
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To: fireman15

Spent my career in the semiconductor industry. One of the first things I learned about was the dangers and proper handling of HF. Never got a burn but I knew several that got mild to severe HF burns.


40 posted on 05/07/2022 9:16:28 AM PDT by NewHampshireDuo
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To: fireman15

That sounds like it creates some kind of self sustaining reaction With something inside the body.

Has anybody thought about that?


41 posted on 05/07/2022 9:17:55 AM PDT by Mr. K (No consequence of repealing obamacare is worse than obamacare itself)
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To: fireman15
I did metal oxide digestions for many years using aqua regia with HF (49%). I knew the MSDS on hydroflouric top to bottom. I remember one of the treatments was "debridement". That is, cut off before it burns deeper.

If you don't want to do that, have some Calgonate gel on hand.


42 posted on 05/07/2022 9:18:16 AM PDT by seowulf (Civilization begins with order, grows with liberty, and dies with chaos...Will Durant)
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To: fireman15

What is the form of fluoride that they like to poison water supplies with?


45 posted on 05/07/2022 9:25:21 AM PDT by Disambiguator
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To: fireman15

45 posts and not one mention that HF acid is commonly used in wheel cleaners.


46 posted on 05/07/2022 9:38:33 AM PDT by brianl703
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To: fireman15
There are two effects from an acid burn:

a) the physical destruction caused by the chemical reaction between the acid and the tissues of the body. This will follow the same rules as all other chemical reactions, so 1 gram of acid will reduce 1 or a few grams of tissue to other chemical substances.

b) many of the newly created chemical substances will be highly toxic, and will be spread through the body by the blood and lymphatic system, just like snake venom.

It's the toxic byproducts that can kill from a small spill or cause sepsis-like blood clotting in a limb resulting in amputation, again just like snake venom.

48 posted on 05/07/2022 10:01:27 AM PDT by pierrem15 ("Massacrez-les, car le seigneur connait les siens" )
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To: fireman15

Isn’t this the stuff that’s only neutralized by calcium? Which is why it continues to burn and eat away all the way to the bone?
H2S?


51 posted on 05/07/2022 10:35:24 AM PDT by Married with Children
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To: fireman15

Isn’t most of this stuff made in China?
Disposable workers unite!


53 posted on 05/07/2022 10:45:04 AM PDT by arizonarick
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To: fireman15

...because no-one has ever died from a gasoline engine?

I mean, the risk described is real, and will grow as the cars become more common. But 33,000 people die from operating cars each year, and has even one person died from HF exposure to date? Imagine all the folk around here riding their horses, when someone comes along talking about making horseless carriages that rely on controlled gasoline explosions!


55 posted on 05/07/2022 10:47:17 AM PDT by dangus (I had some sympathies for some of Russia's positions... until they started a G-d-damned war.)
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To: fireman15

I used to work in the North Slope oil fields in Alaska as a medic. Encountered one fellow who had been mixing a solution of HF and HCl with inadequate PPE a few months earlier. He managed to soak his lower pant legs and thought nothing of it due to inadequate training. The acid started dissolving the tissue between his ankle bones and his Achilles tendon. By the time it was arrested after hospitalization, multiple surgeries, and lots of IV Calcium he had developed a permanent hole in his lower leg. When I encountered him he was back working for the same company. That’s when I realized he was none too bright.


56 posted on 05/07/2022 10:47:25 AM PDT by 43north (Its hard to stop a man when he knows he's right and he keeps on comin'.)
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To: fireman15

There must be a very high risk of contamination in the event of a severe automobile accident/impact that damages the battery: the potential for the stuff to be sprayed for some distance; not to mention the consequences of it coming into contact with hot surfaces.


67 posted on 05/07/2022 12:45:01 PM PDT by Mr Radical (In times of universal deceit, telling the truth is a revolutionary act.)
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