The odor of CH2Cl2 (dichloromethane/methylene chloride. Smells a lot like chloroform, although it lacks the distinctly sweet note to the smell that CHCl3 has and is harsher because of it. Where to me, chloroform smells mostly light yellow-green with a hint of white, the yellowy-green highlighter pen [although slightly darker] scent that chloroform has is replaced by a white, translucent, slightly wavy smell in dichlor.)
(I have a weird kind of synaesthesia when it comes to the lab, chemicals that have any odor usually smell of very distinctive color and/or color/shape/movement patterns. For example chloroform has a green, pale smell to it, dichloromethane has only the slightest hint of green, mostly a glass-clear white smell with hints of movement in a wavy pattern. Diethyl ether smells...yellow, a straw-yellow shade and doesn't move. Acetonitrile (methyl cyanide), despite smelling like ether to the nose, or etherial at least, to me, I perceive it as light purple-mauve coloured. Sodium metal feels like rippling movement in something fine-grained and solid, like sand and has no color, hydrochloric acid feels like upward movementm ammonia solution in water smells bright white, and copper metal feels blue. Phosphoric acid has a really distinctive orangey-tinted yellow color (the actual substance is clear) whilst polyphosphoric acid is similar but less orange and darker)
Cyanides....have a pinkish sense to them in the case of hydrogen cyanide gas, hydrocyanic acid (the water solution has additional mid-blue color though to me) and ionic cyanides like potassium/sodium cyanide, again a pinkish color but lacking the blue. And red phosphorus feels sort of...thinness, Calcium metal is a dirty grey-black and magnesium feels white, but insubstantial, almost like a gas, thats so thin it could be walked straight though.
Its weird, I've always had this, ever since I built my first lab.
