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Trending price is based on prices over last 90 days. People have died from hydrofluoric acid burns, and I'm not sure whether that is the case with hydrochloric acid.Loctite Aluminum Jelly Cleaner & Brightener Removes Corrosion & White Rust 8 oz. Fluoride ions seem to present a biohazard that most other acids don't, as they apparently can penetrate the skin and attack the bone, and some people have reported an anesthetic effect such that a burn can go undetected until it is very severe. The relative safety of different acids isn't easily dispatched in a forum posting, but I DO NOT AGREE that ammonium bifluoride is safer than hydrochloric acid. PERFORMANCE FEATURES Removes Oxidation & Corrosion Restores Original Finish For Polished Metal Non-Chalking & Non-WhiteningA. The best concentrated acid cleaner for mirror-finish aluminum & stainless steel, MIRROR X uses a high-performance formula to clean & brighten polished exterior surfaces.Silver takes a cautiously optimistic look at the scientific advances that will allow us to engineer. Will genetic enhancement ultimately lead to a split in the human speciesIn this brilliant, provocative, and necessary book, Lee M. Coil cleaner works as well, but needs to be diluted.
Aluminum Brightener Cleaner 32 Oz Aluminum Brightener Skin And AttackIn addition to cleaning bare or I'd say the general rule should be never use fluoride chemistry unless indispensable but, if you must, then ammonium bifluoride can be somewhat safer to have around and can perhaps be used more safely than hydrofluoric acid because its concentration is more limited.Net 32 U.S. They are often used in the aerospace industry to clean aircraft exteriors and engine components. Less harsh than acid-based brighteners, these cleaners won’t damage or degrade aluminum surfaces. Both from a personal safety viewpoint and a potential damage viewpoint, I wouldn't do it. Further, the acid splash and even the acid fumes will attack any metal in the drains, faucets, or elsewhere in the bathroom. As for etching a bathtub, remember that some are fiberglass, others acrylic, or porcelain, or cultured marble acid will react with them all differently. San e Canvas Cleaner Hull Cleaner. VINYL GUARD BOAT COLOR RESTORER RESTORER WAX 10. Designed To Safely Clean Aluminum Surfaces DANGER: HARMFUL IF SWALLOWED. If you add Sulfuric or Hydrochloric acid to the ABF you will have more HF in solution than with just the ABF. Ammonium Bifluoride, NH 4HF 2, is a weak acid salt of HF. Is anyone aware of its performance compared to HF? And since it is in powder form, is it safer?A. We are currently using hydrofluoric acid to etch glass, but have heard that ammonium-bifluoride may be safer. Buy Aluminum Brightener Cleaner 32 oz MAC Aluminum Brightener - MAC 1458 online.Ammonium bifluoride for etching glass? 2001Q. Good luck.Unlike limited-use cleaners, Flitz Metal Pre-Clean works great on glass. Even though they both produce a corrosive fluoride solution, ABF and HF are quite different.HF is water-soluble in all proportions while ABF is soluble only up to ~28% at room temperature. This said, you should always wear eye and skin protection when mixing or using, and never handle ABF with your bare hands. It does hurt when it gets in a cut or scratch but a quick rinse with water helps. I have never had a burn with solid ABF, however (breaking lumps with bare hands). What is the function of the caster sugar ? Moshe AA. Does anyone have knowledge as to whether the addition of the caster sugar, and the distilled water, would make this combination more, less or equally hazardous? Laurie MillsQ. We also use a combination of ammonium bifluoride, caster sugar and distilled water to etch glass. Very corrosive, toxic and hazardous.Some folks have used ammonium bifluoride as a substitute for HF and created (what they refer to as) an "acid free" wheel cleaner - it's a dangerous and deceptive practice.Bottom line here is that the ABF solution will still produce an extremely hazardous liquid. The uninitiated person who judges this as "safe" can quickly get into trouble since once the ammonium bifluoride (NH4F)HF is contacted with water the HF content will be ~ 13%. In fact, semiconductor-chip manufacturers use different ratios of HF and ABF to produce various "Buffered Oxide Etches" that dissolve silica chips at various rates.The use of (dry) ammonium bifluoride as a "safe" replacement for hydrofluoric acid is an unsafe practice. I mixed ammonium bifluoride, barium sulfate, caster sugar and distilled water to make etching cream. I see white patches on the bulbs after etching, can anyone suggest how to get rid of white patches. About 5 Kg of ABF crystals is dissolved in 110 litres of DM water. ![]() The cleaner would probably have some other ingredients like a mild abrasive like feldspar and perhaps a wetting agent like sodium lauryl sulphate. One reason I asked is that fluorides are very hazardous, so it is imperative that proper protective equipment including goggles and gloves be worn. I wonder is ABF and HF are totally interchangeable or they have some different characteristics? Victoria KiryakovaAlt - Saint-Petersburg, Leningradsky, RussiaA. What do you think about this?And another question. Outlook for mac gmail less secure appsAnthony BennettCalculations for ammonium bifluoride 2007Q. This equates to 20 g to every 100 mls water.That 20% solution is the MAXIMUM amount found in proprietary brands and "home brewers" should start with lesser amounts finding what works for them.I would be interested in hearing how previous responders have gotten on with the solutions they have posted here in the last couple of years. Hi All, Looking through the responses to this letter and the amounts people are using made me wonder if the solutions being suggested are of the right percentage.The percentage of ammonium bifluoride in a solution should be no more than 20 %. Plus, you need to carefully study patents and do reverse engineering, or you'll be starting from zero 50 years behind your competitors :-)A. You can't possibly market such a product without your company intimately understanding the chemistry. To give an example, crystals of ABF that were left next to a balance (ahem, after a prior user did not properly clean up after themselves) though dry, absorbed enough moisture from the air to etch away the lab bench top surface, leaving permanent white spots on the black laboratory grade benchtop material.In both cases, whether HF acid or solutions thereof, or ABF or solutions thereof (which contain HF), double gloves that are compatible with HF acid should be used. If I need a 5% solution of a hydrofluoric acid solution but would rather use ammonium bifluoride, how much do I use? Jolene DramsonTom Rochester Plating Systems & Technologies, Inc.!! I'm a little startled to see so many questions and answers about the use of HF and ABF without reference to the proper safety precautions when using either of these hazardous chemicals.While ABF is in one sense safer to use, since it is less likely to be splashed (like liquid HF) as it is in a solid form, its use still requires the same precautions you would take when working with HF or solutions thereof because solid ABF readily absorbs moisture which in turn forms a solution of concentrated HF. I've been out of college too long to remember my stoichiometry. Can someone tell me the right percentage mixture of ammonium bifluoride, water and oxalic acid that will keep the pH of the solution between 2 and 3? Rick LawQ. If you haven't received training on how to properly treat HF burns don't use these chemicals.This is not the sort of burn where you simply wash it off and go about your business. This includes any sort of contact of ABF in the solid form as HF is formed when moisture in your skin combines with the solid ABF. HF burns to the skin must be treated immediately by flushing with water and applying calcium gluconate gel followed by immediate medical attention by a trained professional. Proper PPE including safety glasses and protective garments are a must.Calcium gluconate gel should be on hand at all times. Etching with these chemicals should be done in a chemical fume hood. Working in a bathtub for example with the bathroom vent on does not equate to a safe working environment.
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