21 votes

What is this fluorinated organic substance?

The name of the compound is 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) (CAS #: 140681-55-6), which is commonly known as Selectfluor, a trademark of Air Products ...
Mathew Mahindaratne's user avatar
17 votes
Accepted

Does the largest known cycloalkane contain 288 carbon atoms?

According to Makromol. Chem., Rapid Commun. 1985, 6 (3), 203–208[1], Kwang Sup Lee and Gerhard Wegner, attempting the synthesis and study of $n>100$, $\ce{C_nH_{2n}}$ cyclo-alkanes and linear ...
Safdar Faisal's user avatar
15 votes

What is the name of this chemical LiB2PO4H7?

There is an important concept to be understood underlying this question, something all new chemistry students eventually learn: all sensible chemical reactions will balance, but not all equations that ...
Nicolau Saker Neto's user avatar
14 votes
Accepted

Identification: was this gallium or mercury from broken thermometer?

Gallium, and Galinstan have the ability to wet glass, while mercury does not. So it's most probably gallium (or Galinstan).
aventurin's user avatar
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14 votes
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Formula of Oxone

From [1, p. 828] (and many other organic chemistry textbooks), Oxone's formula is equally written as $\ce{KHSO5 * 0.5KHSO4 * 0.5K2SO4}$ or $\ce{2KHSO5 * KHSO4 * K2SO4}$, a potassium monopersulfate ...
andselisk's user avatar
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14 votes
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What is this fluorinated organic substance?

That is generally known as Selectfluor, a source of electrophilic fluorine. The zig-zag line is a 2-D representation of the third ethylene $\ce{-CH2-CH_{2} -}$ unit that links the two nitrogens. more ...
Waylander's user avatar
  • 22k
12 votes

Rubber composition A13 B13 C20 F17 K11 L14

TL;DR I think you might need two more things to interpret this line: the first code part of the standard, and the standard itself - ASTM D2000 (needs to be purchased). These descriptors are not ...
andselisk's user avatar
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11 votes
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Identify two amines

The proposed strucutre of these compound are, correct me if i am wrong.
Khan's user avatar
  • 1,226
11 votes
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What is this blue crystal?

As orthocresol also mentioned, it's probably copper sulfate. As you said, the blue color essentially gives it away. (picture taken from Science Madness Wiki)
Glorfindel's user avatar
  • 2,075
10 votes
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What compound does this chemical formula represent?

The structure represents adrenaline or 'epinephrine' (en.wikipedia.org/wiki/Epinephrine). As in: Go out and have an adrenaline rush on your birthday!! The image on wikipedia has a slightly rotated ...
gilleain's user avatar
  • 1,725
10 votes

Identify two amines

$\ce{Fc}$ stands for ferrocenyl. So the first compound is an amide of ferrocenecarboxylic acid and tetramethylene diamine, and the second compound is p-ferrocenyl aniline.
aventurin's user avatar
  • 7,170
10 votes
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What metal is this?

I would guess that it is tin. The coloration and cut look right compared to an image of tin turnings (eBay listing for tin metal turnings). I'm more used to seeing aluminum and magnesium as strips ...
Tyberius's user avatar
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10 votes
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Hypothetical symmetric carbon peroxide

Your molecule basically consists of a bunch of 1,2-dioxolane rings fused together. Since 1,2-dioxolane exists, I would guess that your molecule probably does too, at least under suitable conditions (...
Ilmari Karonen's user avatar
9 votes
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What is "mineral spirits"?

Mineral spirits goes by many names, including "white spirit" and "paint thinner", and is basically just a hydrocarbon solvent mixture. According to this Wikipedia article: White spirit is a ...
airhuff's user avatar
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9 votes
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What happens when an alkyne reacts with ammoniacal Cu2Cl2?

Terminal alkynes (including acetylene) form a $\color{red}{\text{red precipitate}}$ of copper acetylides when it is passed through ammoniacal cuprous chloride solution: $$\ce{R-C#C-H + CuCl + NH3 ->...
Mathew Mahindaratne's user avatar
9 votes
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What compound was drawn on this sidewalk?

Certainly, it's meant to be trinitrotoluene, TNT, with a "typo". Perhaps a craftsman tried to copy an image, such as that from Wikipedia, below, which shows the oxygen atoms outside the ring:...
DrMoishe Pippik's user avatar
8 votes
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How to get back my beautiful crystals made from iron and sulphuric acid

I realize this question is over two years old, but I have to add the correct answer here: the iron (II) sulfate you had at the beginning was in the heptahydrate form. SEVEN molecules of water for ...
virnovus's user avatar
  • 104
8 votes
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What is "Cresol Soap"?

According to an 1894 tract with the title Merck's Market Report and Pharmaceutical Journal: An Independent Monthly Magazine Devoted to the Professional and Commercial Interests of the Druggist, Volume ...
Curt F.'s user avatar
  • 21.9k
8 votes

What is this blue crystal?

It's Copper Sulfate, more commonly known as root killer. It's also used in pools to kill algae. In the home, you flush it very slowly down your toilet drain to kill any tree or bush roots growing in ...
Mike's user avatar
  • 81
8 votes
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What's the chemical formula of "Everitt's salt"?

According to various sources Everitt's Salt has the formula $\ce{K2Fe[Fe(CN)6]}$, where both $\ce{Fe}$ are in the $+2$ Oxidation State. Everitt described it as a yellow precipitate, resulting from the ...
Gert's user avatar
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8 votes

What organic molecule, if any, does this diagram represent in Louis CK's "Louie" Season Four, Episode Eleven, just before the six minute mark?

As andselisk states in the comments, it is adenine. [OP] I suspect it is fake. No, it is as real as water and the stars. What makes this a little bit complicated is how to draw it, specifically on ...
Karsten's user avatar
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8 votes
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How can I test for impurities in my steel wool?

Iron metal vs. sulfur Your steel wool is of course mostly iron(0), i.e. metallic iron. This has a standard reduction potential of -0.44 V, or -440 mV. $$\ce{Fe^2+ + 2 e− ⇌ Fe(s)}\;\;\;\;\;\;E_0=-...
Curt F.'s user avatar
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7 votes
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Finding the mystery ester strucuture using NMR

Prediction software always has its limitations, and there is always a degree of error in the calculation. For the ChemDraw predictions, you will see that for the 3 aromatic environments, it has done 3 ...
long's user avatar
  • 11.9k
7 votes
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What molecule is pictured on the cover of Dead Sara's album "Ain't It Tragic?"

I see two possible candidates: buprenorphine and thienorphine. Both are strong opioid painkillers fitting the “art” theme. Depending on how one draws the location of what appears to be a methoxy and a ...
andselisk's user avatar
  • 37.5k
7 votes

Hypothetical symmetric carbon peroxide

Carbon is not very good at forming stable peroxide compounds (prospective chemists are early and often warned about ethers turning into explosive peroxides), so this compound with multiple peroxide ...
Oscar Lanzi's user avatar
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7 votes
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Formula of what substance is shown in the clip Disappointed by Electronic?

I did a structure search within CCDC 2016 database (should be good enough for the 1992 video) for the connectivity graph with complete disregard of the used color scheme: Here, ...
andselisk's user avatar
  • 37.5k
7 votes

What compound was drawn on this sidewalk?

The inner of the structure formula neither is a character, nor a number. It is a Thiele ring (suggested by Johannes Thiele 1865-1918 by 1899) to describe aromaticity, after Kekulé's approach already ...
Buttonwood's user avatar
6 votes

What compound does this chemical formula represent?

You can easily search for chemical structures online. Just one example is ChemSpider. It has an online editor in which you can draw the structure. You can also upload images. Always make sure to ...
kappi's user avatar
  • 83
6 votes

ChemSpider versus SciFinder for finding chemicals without CAS number

SciFinder is a product of Chemical Abstracts Service (CAS), which is a division of the American Chemical Society. Its registry contains information on more than 111 million organic and inorganic ...
ringo's user avatar
  • 24k
6 votes

What is this formula representing?

It's a coffee mug, and coffee is (in)famous for one particular substance: Caffeine. The 2D picture on Wikipedia is the same as on the mug, except that it's rotated 180 degrees. The 'sticks' are ...
Glorfindel's user avatar
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