how can I protect titanium of oxydation?
348589
As the above answerer states, you don't need to - titanium won't rust; rather it develops a protective, inert oxide layer in air, just like aluminum has it's protective  inert oxide layer - Al2O3.\nIron and steel rust/oxidize in air and it can prevented by giving a coating of zinc, chromium, or magnesium on it.
53382
Titanium....... try going to Overstock.com and seeing if they have any specials. Why spend more than you have, when you can spend less and have more!
716754
it prevents the steel from rusting. Zinc rusts too, but more slowly than steel, and it doesn't tend to eat away it's structure. \nZinc coatings prevent oxidation of the protected metal by forming a barrier, and by acting as a sacrificial anode if this barrier is damaged. Zinc oxide is a fine white dust that (in contrast to iron oxide) does not cause a breakdown of the substrate's surface integrity as it is formed. Indeed the zinc oxide, if undisturbed, can act as a barrier to further oxidation, in a way similar to the protection afforded to aluminium and stainless steels by their oxide layers.
237301
Welding on galvanized metal can be dangerous.  The best bet is supplied air.  This would be preferable over any filter. Always make sure there is good ventilation, too.
932085
they oxidize easily if exposed to air
812205
Put a metal which has higher activity than Silver
50575
Paint is an oxidation preventor, it creates a layer on the top of many metals (such as those used on bridges) preventing the actual metal from reacting with the oxygen in the air, thus weakening the metal by converting some of its mass to rust (ferrous oxide).
182902
Specifically, water binds to the mixture, and blocks free oxygen from reaching the material to be oxidized-its a simple smothering reaction, and is why water is effective for putting out fires.  Salt is also effective, but is reduced by the relatively large size of the particles which allows some oxygen in.  There is no specific inhibition of the oxidization reaction other than this-water is neutral to this reaction, except as a space inhibitor.
1136243
You can get thermocouples with Inconel sheaths from Omega and others, these will resist low concentrations of sulfuric acid and temperatures up to about 1200 C.\n\nThere are also ceramic sleeves you can use if the temperature or acid concentration is higher, but you'll need to compensate for the measured temperature difference between the inside and outside of the sleeve.\n\nIf the temperature is not too high, you could also try an RTD, which is generally more accurate.
373023
Ultrasonic cleaners might be the best solution.\n\nHere is an excerpt from the source listed below: \n\nAlthough a range of possible alternative products is available today, experience has shown that substitution of TRI is not easy and even not feasible for a number of specific cases, either for technical or economical reasons. For all cases, substitution of TRI needs a thorough evaluation of all process aspects. For this reason we intend to work with the authorities in order to prevent a blanket implementation of forced substitution, and allow sustainable and continued safe use of TRI. \n\nThe alternatives you will probably consider first are the chlorinated solvents perchloroethylene (PER) and methylene chloride (MC). They match closest the technical features of TRI, such as non-flammability, high solvency power, a wide range of material compatibility and excellent drying and recycling properties.\n\nBeside PER and MC, you have probably also heard about other alternatives such as aqueous (water-based) alkaline systems, flammable solvents (e.g. hydrocarbons or modified alcohol based formulations), supercritical CO2 or hydrofluorocarbons (HFCs), etc.\n\nIt is impossible to say definitively which technology is best. That depends on your specific application, on what you are cleaning, which materials you want to remove, the cleanliness required, the variability of the parts cleaned, the throughput to be achieved, the cycle times, etc. \n\nFor example, for the cleaning of parts between two water-based manufacturing steps (e.g. galvanising), aqueous systems may be better, since parts are put into water phase again later and no energy-intensive drying step to remove the water is required. \n\nIf you need to have very clean and dry surfaces (for coating or surface hardening, for example) and if you have a variety of different metals or blind holes, narrow distances and very fine orifices or a lot of residual oil to clean, hydrocarbons or aqueous systems may not clean and dry well enough. In these cases, chlorinated solvents will offer most often the best solution as they are compatible with most materials, have a high cleaning power, are easy to dry, don't leave residual films and are easy to recycle with high quality by distillation. In addition, chlorinated solvents are today best suited to be used in modern closed systems with minimal losses. Their ecological performance has very much increased and, when used in well-operated metal cleaning systems, they outperform aqueous cleaning as long as drying is required. This has been shown by a Life Cycle Analysis carried out by Ecobilan. \n\nPER comes closest to TRI in technical performance and is often the first choice candidate as an alternative to TRI. However, it shows clear inherent technical differences, which need to be taken into consideration. On one side, PER offers a lower volatility and therefore is advantageous to minimise emissions in closed equipment. On the other side, PER has a lower solvency power and is therefore normally used at a higher cleaning temperature to achieve similar performance. This may raise concerns regarding the compatibility with specific metal working fluids and temperature-sensitive parts. \n\nMethylene chloride (MC) shows excellent cleaning properties already at low temperatures, favouring the cleaning of temperature sensitive parts. However, its high volatility makes emission control more difficult and requires special equipment.\n\nHydrofluorocarbons (HFC) and hydrofluorocarbon ethers (HFCE) are very expensive and show very limited solvency power. A thorough evaluation of the global warming potential is also required to choose the adequate product.
1176803
http://en.wikipedia.org/wiki/Oxidizing_agent\nhttp://en.wikipedia.org/wiki/Reducing_agent
918243
Titanium (III) sulfite (or sulphite, if you wish, but it is not IUPAC)
402171
use a saddle oil or tree oil. This will help perserve it. Lee
97708
the metal is simply not exposed to the outside oxygen - it is shielded from it by the paint, which itself contains little, if any oxygen
236628
Corrosion occurs when a material is exposed to oxygen (oxidation). The best way to avoid oxidation is by protecting the material from coming in touch with the oxygen by painting over it or sealing it in any other way.
530435
Get a glowing splint (piece of wood that is still burning out). \n\nPlace near the oxygen and it will glow brighter as it uses the oxygen to burn more.\n\nPlace near the hydrogen and you will hear a 'pop' sound. \n\nHope that helps! :)
550619
Most strong oxidizers are going to be potentially explosive.  What are you trying to oxidize?\n\nOctanitrocubane has some serious kick though.