Health and safety in the shop or garage

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(Battery acid)
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==Battery acid==
 
==Battery acid==
Automotive batteries contain Sulfuric Acid, which when not handled properly, can cause blindness, burning and death. This thread demonstrates how there are misconceptions of the dangers.....
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===Ingestion, inhalation, and skin or eye contamination===
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Automotive batteries contain sulfuric acid, which, when not handled properly, can cause blindness, burning and death.
  
http://www.hotrodders.com/forum/sulfuric-battery-acid-uses-136173.html .
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Full MSDS info is here: http://www.bu.edu/es/labsafety/ESMSDSs/MSSulfuricAcid.html .
  
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If you ingest or inhale battery acid, or if you get battery acid on your skin or in your eyes, get medical attention immediately. Speed is critical.
  
First Aid Measures
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Don't rub your eyes, or keep them closed. They need to be "irrigated" for at least half an hour. Flush your skin with soap and water for 15 minutes, and remove contaminated clothes and shoes.
  
Eyes:
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If you ingest battery acid, don't induce vomiting. If the victim is conscious, give 3 cups of milk or water.
Get medical aid immediately. Do NOT allow victim to rub or keep eyes closed. Extensive irrigation is required (at least 30 minutes).
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Skin:
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Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes. SPEEDY ACTION IS CRITICAL!
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Ingestion:
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Do NOT induce vomiting. If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
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Inhalation:
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Get medical aid immediately. Remove from exposure to fresh air immediately. If breathing is difficult, give oxygen.
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If you inhale battery acid, get fresh air immediately. If breathing is difficult, give oxygen.
  
Handling and Storage
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Never add water to acid. Always add acid '''slowly''' to water.
  
Handling:
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===Don't use battery acid to clean concrete===
Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Use only in a well ventilated area. Do not get in eyes, on skin, or on clothing. Keep container tightly closed. Do not ingest or inhale. Do not allow contact with water. Discard contaminated shoes.
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Using battery acid to clean concrete can crumble and flake your concrete surface. It doesn't "clean" concrete -- it '''dissolves''' it. The acid soaks into the floor, and will continue to damage it until it is neutralized. Water doesn't '''neutralize''' battery acid, it simply dilutes it -- in fact, sulfuric acid produces heat when it is introduced to water
A diluted acid solution is used to clean brick and to remove concrete from surfaces that can take the acid and to etch concrete floors prior to painting or other surface coatings but to use as a concrete floor cleaner? The acid will soak into the concrete and you will probably end up with a crumbly and flaking surface if the solution is too strong. It does not actually clean the floor it DISSOLVES it so instead of just cleaning you will be removing some of it. The problem is the acid will not stop when you finish and rinse it off, it will soak into the floor and continue the damage until it is neutralized by the concrete, on an oily floor you could end up with an unevenly etched surface.Water does not NEUTRALIZE acid, it simply dilutes it and there is a major difference! There would be no need to add anything to the rinse water since the lime in the concrete will do the same thing as the baking soda and the concrete itself will neutralize the acid. The problem is the "neutralized" acid will be soaked into the concrete so you will have a soft surface left however deep the acid goes before it ceases to work. If you are trying to clean a stained floor there are strong detergent solutions out there that are a heck of a lot better and safer for your concrete than Sulfuric Acid!
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  Sulfuric acid is EXTREMELY dangerous. Not dangerous, EXTREMELY dangerous. That is in the dilute form. In a concentrate it is worse than that.
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  IF you decide to do this, DO NOT put water in the acid. ALWAYS ADD ACID SLOWLY TO WATER. Do it the other way and there will be a violent exothermic reaction that blows the acid all over your body and the Darwin Award committee won't have time to reach your house before you die from 3rd degree acid burns over your entire body as your flesh sluffs off. Will only take a couple minutes. Time goes fast doesn't it?
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  Second DO NOT mix it 3:1. That is strong enough to take off measurable amounts of concrete 1/8" - 1/4" in a manner of minutes. 100:1 is a better target. Since commercial concrete cleaners are dirt cheap at home centers, why would you chance this?
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                              More things not to do!
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If you put that stuff in a galvanized metal sprayer you may not live long enough to see what it will do to concrete! No joke this stuff is much too dangerous for a novice to handle and to experiment with it could have deadly consequences.  If you start spraying even a 3:1 dilute mixture on a concrete floor, not only will your clothes fall off (think I am joking?) but you could, and probably would, end up with serious acid burns and very likely lung damage! 
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  Actually, sulfuric is commonly used to unclog and clean out drains. It produces much heat (and CAN have very violent reactions) when it is introduced to water, depending on the ratio. You definitely DONT want to take a bottle of sulfuric and squirt a small amount of water into it, and you also cant use it if you have PVC pipes cuz the heat produced as its mixes with the water will melt the plastic faster than a torch will!
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Instead, use a commercial product specifically designed for cleaning concrete.
 
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Storage:
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Keep container closed when not in use. Store in a cool, dry, well-ventilated area away from incompatible substances.
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Personal Protective Equipment
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Eyes:
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Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166.
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Skin:
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Wear appropriate protective gloves to prevent skin exposure.
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Clothing:
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Wear appropriate protective clothing to prevent skin exposure.
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Respirators:
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Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
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== Respiratory protection ==
 
== Respiratory protection ==

Revision as of 02:22, 7 April 2008

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