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 Replies: 138 / Views: 39,594 |
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Bedrock of the Community
United States
20753 Posts |
Quote:
But tell me then, just exactly what would you use? If the pliers damage, then any and all metal tools will damage. You cant use plastic or anything with foam tips or any other similar padding because the acetone or dip will melt it. Not a good thing. Perhaps bamboo feeding tongs would work, but I am qite sure they would scratch the coin as well.
Thad, if I had just used my fingers, I guarantee a dozen people would have been all over me about how I am dealing with a flamable hazardous material.
Many methods could be used to handle those coins. 1. Drill a hole in the coin and put a piece of wire through the hold and use it to dip the coins. 2. Cut off the top of the can of Acetone and using your fingers, just drop the coins into the can. 3. Hire someone to use their hands to handle the coins so you wouldn't have to worry about contamination. 4. Steel Channel locks, Vise Grips and welding torch pliers also could be used to handle the coins. And the list goes on.   IF you take your time though, there are many places that make glass utensils, such as tongs for grapping. |
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Bedrock of the Community
United States
10635 Posts |
If it was harmful to your skin, it wouldn't be used as the active ingredient in nail polish remover. Fingers would be a million times better to use than metal tools.
Les
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Pillar of the Community
United States
1143 Posts |
I'm still laughing at the fact it was a heresy coin  . Bio you mention a wash after using Acetone. I normally use tap water and dry with a soft rag by patting it dry. What do you recommend. |
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Pillar of the Community
United States
3755 Posts |
Oh Lord. *I* know it doesn't harm my skin. I was haz mat qualified when I was in the fire dept. I have used acetone for years. I am talking about what other people here have said in the past. I have seen numerous posts where people have said be careful when you use dangerous chemicals blah blah when referring to acetone. Come on guys, dont be so literal. (And I know the use of the word literal isn't 100% proper here, but it works) carl,  I like the drilling the hole option. biokemist, it didnt even occur to me to look for tongs made of polypropylene. Thanks for the tip. The wife suggests one should use those metal thingies you use to dip Easter eggs. LOL Edited by smokeriderdon
09/21/2011 09:41 am
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Bedrock of the Community
United States
19958 Posts |
Rinsing with water AFTER acetone is completely illogical. Water is the most corrosive substance there is to coins. Always rinse with fresh, clean acetone after an acetone dip.
cointagous - Tap water is HORRIBLE for coins. It is very impure and will leave traces of all kinds of things on your coins. If anything, rinse with distilled water and then acetone to dehydrate the surfaces. Acetone is the best dehydrating solvent in the world, water (even just a few molecules) is the great destroyer of coins.
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Bedrock of the Community
United States
20753 Posts |
Quote:
cointagous - Tap water is HORRIBLE for coins. It is very impure and will leave traces of all kinds of things on your coins. If anything, rinse with distilled water and then acetone to dehydrate the surfaces. Acetone is the best dehydrating solvent in the world, water (even just a few molecules) is the great destroyer of coins.
And even worse is that many have what is called WELL WATER. If you ever used Well Water for anything, you would know it contains almost anything on Earth. In many areas the tap water is run in homes through a water softener. This leaves Salts on coins if used. And if you live in an older home where the water piping is Iron, picture all sorts of rust in your water. If you've ever seen a Iron water pipe come out of a house you would know what I mean. As a word of warning to those with house plants. If you use tap water on them, always let the water stand for 24 hours minimum. The reason is in many areas your tap water contains Chlorine and if put directly on plants, kills them. Edited by just carl
09/21/2011 10:54 am
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Pillar of the Community
United States
1143 Posts |
My mistake in using the term tap water as I use distilled water to rinse. Rarely do I clean anything at all unless I see something on the surface that will likely do damage to a coin longer term. Thanks for correcting my error. Carl I am a destroyer of plants but that is another thread altogether.
Edited by cointagous
09/21/2011 11:27 am
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Pillar of the Community
United States
4901 Posts |
Just an FYI from the HAZMAT MSDS on toxic materials: ACETONE: Quote:
Special Remarks on other Toxic Effects on Humans:
Acute Potential Health Effects: Skin: May cause skin irritation. May be harmful if absorbed through the skin. Eyes: Causes
eye irritation, characterized by a burning sensation, redness, tearing, inflammation, and possible corneal injury. Inhalation:
Inhalation at high concentrations affects the sense organs, brain and causes respiratory tract irritation. It also may affect the
Central Nervous System (behavior) characterized by dizzness, drowsiness, confusion, headache, muscle weakeness, and
possibly motor incoordination, speech abnormalities, narcotic effects and coma. Inhalation may also affect the gastrointestinal
tract (nausea, vomiting). Ingestion: May cause irritation of the digestive (gastrointestinal) tract (nausea, vomiting). It may also
p. 5
affect the Central Nevous System (behavior), characterized by depression, fatigue, excitement, stupor, coma, headache,
altered sleep time, ataxia, tremors as well at the blood, liver, and urinary system (kidney, bladder, ureter) and endocrine
system. May also have musculoskeletal effects. Chronic Potential Health Effects: Skin: May cause dermatitis. Eyes: Eye
irritation. Sounds like a safe party liquid to me...  |
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Bedrock of the Community
United States
19958 Posts |
Those warnings are for extreme, over-exposure, not casual exposure. I've been working in industrial labs for 24 years and every chemist I know uses acetone daily. I have yet to hear of any adverse health effects related to even repeated, minor exposure. Unless your bathing in it or huffing acetone, it is safe from a health standpoint.
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Bedrock of the Community
United States
12437 Posts |
Material Safety Data Sheets are written by pinhead lawyers with an eye towards every potential legal liability(real or imagined) in a commercial/industrial setting, they are useful but only to a point. Quote:
2. HAZARDS IDENTIFICATION
Potential Health Effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes May cause eye irritation.
Ingestion May be harmful if swallowed.
4. FIRST AID MEASURES
If inhaled
If breathed in, move person into fresh air. If not breathing, give artificial respiration.
In case of skin contact
Wash off with soap and plenty of water.
In case of eye contact
Flush eyes with water as a precaution.
If swallowed
Never give anything by mouth to an unconscious person. Rinse mouth with water.
8. EXPOSURE CONTROLS/PERSONAL PROTECTION
Hand protection
Handle with gloves. Gloves must be inspected prior to use. Use proper glove removal technique (without touching glove's outer surface) to avoid skin contact with this product. Dispose of contaminated gloves after use in accordance with applicable laws and good laboratory practices. Wash and dry hands.
11. TOXICOLOGICAL INFORMATION
Potential health effects
Inhalation May be harmful if inhaled. May cause respiratory tract irritation.
Ingestion May be harmful if swallowed.
Skin May be harmful if absorbed through skin. May cause skin irritation.
Eyes May cause eye irritation.
The preceding is an excerpt of an actual MSDS from Sigma-Aldrich, can you guess what scary and dangerous chemical it is for? Molecular Biology Reagent Water, nothing but one oxygen and two hydrogen atoms. My favorite is the bolded parts under First Aid Measures  |
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Pillar of the Community
2224 Posts |
Quote:
Many methods could be used to handle those coins.
1. Drill a hole in the coin and put a piece of wire through the hold and use it to dip the coins. the wire could scratch the coin
2. Cut off the top of the can of Acetone and using your fingers, just drop the coins into the can.when the coin hits the bottom the can could damage the coin
3. Hire someone to use their hands to handle the coins so you wouldn't have to worry about contamination.Liablity
4. Steel Channel locks, Vise Grips and welding torch pliers also could be used to handle the coins. Too big
And the list goes on.
Just use your fingers then go wash. Edited by southsav
09/21/2011 3:58 pm
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Pillar of the Community
United States
4132 Posts |
Quote:
The preceding is an excerpt of an actual MSDS from Sigma-Aldrich, can you guess what scary and dangerous chemical it is for? LOL, the LD50 is something in excess of 1.9 gallons for me. I'd better be careful! |
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Valued Member
United States
297 Posts |
I went to the the hardware store tonight to give acetone a try. Is the process like vinegar and Buffalo nickels that t takes days? Or are we talking a few minute soak? |
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Bedrock of the Community
United States
12437 Posts |
If a substance is not removed from a coin's surface after a several minute soaking, then acetone is not the correct solvent. For most surface contaminants, it will work in a matter of 10-15 seconds. Do not forget to do an evaporation test before use!
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Pillar of the Community
United States
3755 Posts |
The only time a longer soaking might be needed is if the coin had tape on it for decades. Several hours should more than cover it even with soemthing like that. But for most things, like sharpie marks, it is, as biokemist said and as I showed in my belittled video, pretty much inside a minute.
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Replies: 138 / Views: 39,594 |
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Posted 09/21/2011 01:14 am
