What chemicals cause the smell of a septic tank?
The point being, at any given time or location the smell of a septic tank can change due to the emission of a different combination of chemical compounds. Interestingly, if hydrogen sulfide is overwhelmingly the dominant compound, that likely means the septic tank is being fed sulfur water. This compound is has a very distinct smell of rotten eggs.
Is sodium chloride really odourless? If yes, what do I smell?
Since OP is specifically asking about the odor of common salt, that should imply that random air particles aren't the source of smell in their case. $\endgroup$ – Yashas Commented Mar 26, 2017 at 5:07
Does a smell imply particles or chemicals in the air? [duplicate]
2018年12月3日 · Smell works because your nose detects substances in the air. Everything you can smell is the result of a molecule carried by air interacting with complex proteins in the nose/mouth (smell and taste are related but taste copes with solids and liquids as …
What is the smell of 'burning' metal? - Chemistry Stack Exchange
2014年2月9日 · Fumes are formed when a metal is heated above its boiling point and its vapours condense into very fine, particles (solid particulates). The smell is often noticed at construction sites, when reinforcing bars are welded or cut. Constructional steel contains about 0.1% carbon and phosphorus. Phosphorus normally isn't welcome since it renders ...
organic chemistry - Why does charcoal absorb smells from the air, …
2014年8月13日 · Its simple adsorption. The smells/ chemicals are stuck at the surface, and once you expose the activated charcoal to sunlight for a few hours, it release the smells and is again activated and charged, and good to use.
What causes the really bad smell of rotten potatoes?
2015年1月22日 · Dimethyl sulfide ((CH3)2S (C H 3) 2 S) is responsible for the smell of the sea (in low concentrations); it too has a cabbagy smell. Dimethyl trisulfide (CH3SSSCH3 C H 3 S S S C H 3) is present in relatively smaller amounts but it has an even stronger odor. The detection threshold is around 1 part per trillion, and it is apparently a strong ...
everyday chemistry - What is responsible for the odor of gasoline ...
2018年2月4日 · 3. Gasoline as we know it is a blend of combustible hydrocarbons and has a characteristic odor. The natural gas we use to heat our homes and (for some of us) cook our food has its own odor, except... Natural gas as piped to our homes consists of methane, which is odorless, plus an odorant so that we can be aware of its presence for safety reasons.
Storage of Urine - Chemistry Stack Exchange
2014年11月10日 · Yea, get the tablet's since they are way easier to deal with than the powdered form. Other methods include preservation at 4∘ 4 ∘ C for first 24-hr. Then deep freeze at −80∘ − 80 ∘ C for longer term storage. Those refrigerator's …
How does hydrogen gas build up in hot water lines?
In addition, bacteria can use the $\ce{H2}$ as food and fart out $\ce{H2S}$ instead, giving the water a "rotten egg" odor instead. The aluminum anode switch can help with this too, or temporarily setting the heater to 160F for a day to kill the bugs (although exotic bacteria of this type can survive at high temp, and furthermore the $\ce{H2S ...
Deodorizing using baking powder instead of baking soda
Baking soda is an effective deodorant because of its basicity. Many foul-smelling compounds are acidic. Neutralizing the compound gives it an ionic character which reduces the vapor pressure (meaning it is less available for the nose to smell it) and makes it …