2009年2月24日 · No, there isn't. H 2 S and H 2 O are in intimate contact in volcanic processes that occur naturally, and there isn't a reaction between them. To make H 2 SO 4 one needs to make SO 3 first, which requires O 2 and something to initiate a combustion reaction. SO 3 dissolved in liquid H 2 O makes H 2 SO 4. _____

2007年4月5日 · What would the galvanic reaction be if i put stainless steel 3042b against aluminum part in an outdoor application with the possibility of a slat water spay against it in a typical weather year. what would it be in a non salt water spray environment. Would it be wise to anodize the aluminum or what other applications would be considered.

2010年10月30日 · No chemical reaction will take place through steam. We use killed steel for low temp. service due to its higher impact strength at lower temperatures as compared to ordinary steel. If you are talking about piping, A-106 Gr.B or API-5L Gr. B seamless quality of piping along with corresponding fittings, flanges, etc. are suitable for the above ...

2008年11月24日 · Dear Friends ,does diesel stored in galvanised steel threaded pipes have any chemical recation CR4 - The Engineer's Place for News and Discussion ® New Post

2020年2月24日 · Good Answer: All the negative sign indicates is that the heat flow is going from the inside to the outside. A parallel is that of the convention in an exothermic chemical reaction: heat flow also comes out in...

2019年1月12日 · The last link you provide states that both citric acid and ferric citrate can be poured down the drain if less than 5 gallons , or if greater than 5 Gal then seek advise on disposal through a specialist waste disposal company.

2007年8月22日 · Is the cable immersed in the water for a great length? I am puzzled at what the mechanism is that you think ties the cable to the chemical reaction. It certainly is'nt providing the sulfur. As others have mentioned changing the cable is no big deal,. but it is not likely to make the smell go away. I would have the well water tested commercially ...

2024年5月21日 · As DEF enters the system, it evaporates into ammonia (NH₃) and water (H₂O), the ammonia sticks on the SCR catalyst and binds with the nitrogen oxides as they pass over the catalyst. Once bound, the nitrogen oxides will combine with the ammonia to create a chemical reaction resulting in nitrogen and water. (NO+NO₂+2NH₃ -> 2N₂ + 3H₂O)

2007年3月8日 · Hello Pragmatist - and other commentators on the chemical process. Coming from another direction, would it be true to say that there would be no rust if there was no water (liquid), or would there be rust due to vapour in otherwise dry air. In other words, would steel go rusty in conditions of high humidity (but without any liquid).

2008年2月28日 · Polyurethane is the reaction product of a disocyanate and a hydrogen donor. By hydrogen donor I mean compounds containing hydroxy groups or amine groups (there are others). They can be made thermoplastic, or thermoset. The thermoset ones are active chemicals, you have to mix an A and B together to get a reaction.