Oddly enough, only used it once.
Today I decided to check on a FRS handi talkie, the Energizers that expire in March 2016 had leaked. Some hot water, and old tooth brush, and the contacts cleaned up okay. I shook out the excess water, and will try the HT tomorrow when it's good and dry.
- . Christopher A. Young learn more about Jesus .
Vinegar is a mild acid, not much danger to metals. Rinse after, to remove the dissolved ionic solids.
Before DioxIT, it was Cramolin. Both concoctions had an assortment of formulations and a checkered history. Both have also been cloned at various times. The acid involved is oleic acid, which is food safe and is used in a variety of cosmetic potions and nostrums: However, there were some problems. If it wasn't wiped off, it would slowly attack copper and brass contacts. This was deemed a bad thing and the oleic acid was removed from the formulations leaving only mineral oil and no weak acid. Cramolin MSDS: The MSDS for Caig DeoxIT is listed as a trade secret concoction but is generally presumed to be the same as Cramolin. If this is correct, then using DeoxIT to "clean" battery contacts just coats the contacts with a layer of mineral oil.
Caig has a large selection of cleaners and lubes, many of which contain some manner of unspecified oxide remover available. That would be quite suitable if we were removing an oxide. Assuming an alkaline battery, the white residue is mostly potassium carbonate (K2CO3) and some potassium hydroxide (KOH) electrolyte. Just about any acidic cleaner will remove that. I use 409 household cleaner and smear it around with an acid brush. You can tell it's working by the foam and bubbles produced. When the white crud has been removed, just wipe it clean. Both chemicals are soluble in water, so you don't really need an acid, but I like to see the foam and bubbles. After that, smearing the contacts and PCB with mineral oil (DeoxIT) does nothing useful becaue the contacts don't need a lube job.
The history of Cramolin, DeoxIT, ProGold, etc.
The topic appears quite often in the antique radio forums: Plug "DeOxit" into the search box.
Only in the morning: In a pH balanced body. urine is slightly acid in the morning, (pH = 6.5 - 7.0) generally becoming more alkaline (pH = 7.5 - 8.0) by evening in healthy people primarily because no food or beverages are consumed while sleeping. Whereas, during the day the body buffers the pH of the food and beverages consumed by releasing electrolytes and the pH level goes up. This process allows the kidneys to begin the elimination process slowly.
Also, if you're a meat eater or cannibal: A diet which is high in protein from meat and dairy, as well as alcohol consumption can reduce urine pH, whilst potassium and organic acids such as from diets high in fruit and vegetables can increase the pH and make it more alkaline.
So, if you're going to clean up your leaky battery residue with urine, do it in the morning, after a steak breakfast.
Stearic acid, oleic acid,....
Cheers
Phil Hobbs
deoxyribonucleic acid... (Not sure about the "mild", though!)
Mike.
Well, it's good and dry. I tried a couple batteries. Lit up for an instant, and went dead again. Test the batteries, one was dead. Other had some crud on the terminal. Search around and find some good clean batteries with charge. The HT works okay. I gave it some Caig Deoxit on the terminals, just to be sure.
Yesterday I stopped to offer a jump start for a fellow. Turns out that his positive battery calmp (automobile) had corroded off, due to battery acid. In this case, I'd say the problem was lead suplphate, and some copper sulphate. Real shame. Sunday about 5 PJM, in a parking lot at a shopping center. Myself and the security guy both tried jumping, and no luck. Fortunately, he had a cell phone. Hope he was able to get his adult son (talking to him on phone) to bring out a new cable. I suspect a new cable would have done the job.
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