Why are methanol flames less visible than other flames?
2014年8月24日 · Methanol was also widely used as a fuel in the auto racing circuit, until fires that resulted from crashes or fuel filling accidents resulted in "invisible fires" that were difficult to see during daylight, resulting in severe burns to crews and drivers ("you can't fight the fire, if you can't see it", this is one reason why it was replaced by ...
safety - How to store methanol - Chemistry Stack Exchange
Storage tank vents to atmosphere should be sized for fire-heated emergency vapor release. Electrical equipment must be explosion-proof to meet national electrical code requirements. Alcohol-resistant Aqueous Film-forming Foam (AR-AFFF) with 6% foam proportioning (with water) equipment is advised for use on methanol fires.
Colored Flames Experiment - Chemistry Stack Exchange
2018年4月6日 · To do this, I was going to create many wax discs with many different colored chemicals and methanol (to create a more vivid color) by first melting wax, adding methanol and the chemical, mixing and setting to dry. The pink or blue one would be the LARGEST wax puck/disc and would, hence, color the longest after the rest of the colors died down.
Why is methanol toxic? - Chemistry Stack Exchange
2014年12月19日 · The biological view, the only one that I faced during my research, states that since it can trigger perilous conditions like metabolic acidosis, cause a neurologic sequelae, etc. methanol is toxic. The chemical point of view in an answer, which is the one I seek, is the reactions that occur in the body with methanol as a reactant.
How is the light from a fire emitted? - Chemistry Stack Exchange
2018年9月29日 · When you see a fire burning, you have wood (fuel) interacting with oxygen which (through a chemical reaction) gives off heat - and light. But the light appears to emit at some point well-away from the actual fuel - i.e. the flames appear to rise inches (or more) above the actual fuel source where (I assume) the actual combustion/reaction is ...
Dissolution of Lithium in Methanol - Chemistry Stack Exchange
2018年5月13日 · $\begingroup$ @Karl I should probably have clarified that eventually setting fire to some amounts of the solution is obviously an entirely separate thing! Of course, the dissolving has to be done in a fume hood with proper exhaust and have fire nowhere near it. I will edit my question to rectify the misunderstanding.
Why are hydrocarbon flames yellow or blue? [duplicate]
2017年1月17日 · For example, the combustion of methane produces methanol, then formaldehyde, formic acid, carbon monoxide etc. The combustion of acetylene at lower temperature, with little oxygen, however, starts with cracking of the C-C triple bond, releasing carbon particles that have a luminous flame.
organic chemistry - Methanol Evaporation/Degradation From …
2023年3月16日 · Good point! Since methanol and water are miscible: The remaining liquid water would tend to "hold onto" methanol. As the water molecules evaporate, that removes heat energy and slows evaporation of methanol. It would take the methanol longer to evaporate in toto. However, even so, water evaporates readily, too, so there's no need to wash off ...
physical chemistry - About spontaneous combustion of methane ...
2020年10月6日 · That barrier is so low in some cases a compound will react with nearly everything with little excuse (chlorine trifluoride will set fire to asbestos). That is a spontaneous reaction in any context. Luckily, few thermodynamically spontaneous reactions are also kinetically spontaneous or humans would catch fire in air.
Acidic strength of alkanoic acids vs. benzoic acid vs. methanoic acid
2023年12月21日 · I've heard some people say that benzoic acid has a $+\\ce{M}$ effect due to the benzene ring which destabilizes the conjugate base. Also, this would be the dominating factor over the weak $-\\ce{I}$ ...