8/28/2023 0 Comments Do zinc plated bolts rust![]() ![]() ![]() At least it is neutralized.Ĭonclusion:Muriatic acid is a fast, cost effective zinc removal agent that may remain effective after one use. When I dumped the remaining solution onto limestone gravel it ate about 2 inches deep, 2 ft circle. Remaining zinc was cleaned off with a fizz in about 20 min. Ok, I put my quart of vinegar into a larger container, added about a quart of water to cover, then added about a pint of muriatic acid. If volume of acid needed is similar, then I can wait a few days to remove the zinc, with my jug outside. Cost for a gallon of white vinegar is just a couple of dollars at the grocery store while a gallon of muriatic acid is $20-$30 last I checked. Right now it is raining in my jug of vinegar and parts. Will less be needed? Short soak time is very desirable when working outside without a roof available. Lastly, is muriatic acid significantly quicker at dissolving zinc? I mean minutes instead of hours or days. My second question is: Why is dissolving zinc with vinegar so vile? Is there a different, possibly toxic, gaseous product produced besides hydrogen? Hydrogen gas is an odorless, tasteless, non-irritating, flammable, suffocation hazard. I use it to clean with on a regular basis with little ventilation. Vinegar vapor is listed as an irritant, but does not make me cough like that. My chemistry is very rusty, and the msds for distilled white vinegar (acetic acid 5%) and hydrogen gas seem to be not helpful. It took about 10 minutes sitting outside to feel normal again. I opened the garage door and moved the jug outside. About 5 minutes later I had to get something out of the garage, and started coughing uncontrollably as soon as I walked in. I cut up a rinsed out apple juice jug to make a bucket, put my parts in with fresh vinegar and put it in the corner, figuring I would not mess with them today. This brings up the first question: How long and how much vinegar is needed to strip say a 2 inch diameter x 8 inch galvanized pipe? Yes, I know thickness of zinc varies from part to part, even in the same batch. I removed and rinsed the parts, but was very surprised that half the zinc remained. Overnight the bag inflated and split at the bottom, but the parts remained covered with vinegar. I put my parts in a Ziploc bag with about a quart of vinegar. I decided to use white vinegar as I had some. It was recommended by several people to use vinegar or muriatic acid to strip the zinc off. I grind away zinc at least 1/2 inch back from any welds on galvanized sheet metal, avoid heating of hot-dip galvanized, solid zinc or die-cast parts, etc. Small amounts of zinc being heated and burnt off I find reasonable (electroplated fasteners), but I want to avoid large exposure to zinc, even though it is a necessary nutrient and eliminated from the body reasonably well for a metal, it can quickly build up to toxic levels. I am making a propane forge, and could only get some parts in galvanized. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |