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Topic: Solubility of Cyanamide  (Read 3002 times)

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Offline Seanlet

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Solubility of Cyanamide
« on: June 12, 2013, 11:43:28 AM »
Does anyone know where I can find a comprehensive list for the solubility of cyanamide?

I'm in the UK so my library doesn't have access to the NIST database.

I have a tutorial coming up and am worried that the tutor will think that I'm an idiot if I suggest something which is impossible.


Thanks in advance
Seanlet

Offline Seanlet

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Re: Solubility of Cyanamide
« Reply #1 on: June 19, 2013, 12:27:41 AM »
Solubility in isopropanol > 210 g/L Temp. 20°C
Solubility in acetone > 210 g/L Temp. 20°C
Solubility in methanol > 210 g/L Temp. 20°C
Solubility in ethyl acetate > 210 g/L Temp. 20°C

I managed to find this in a book, but it's neither specific nor comprehensive though all of these would be classed as 'soluble'.

I also note that a dash of acetic acid is added to many reactions to prevent polymerization.

Offline Seanlet

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Re: Solubility of Cyanamide
« Reply #2 on: June 19, 2013, 02:07:29 PM »
It would be nice if other people could check their (paper) media. Someone has surely tested it in dozens of solvents but being a rather 'mature' reagent, that data may not have become digital.

We are losing a VAST amount of important, basic chemistry from the 1890s to the 1920s in particular, whole books by absolute masters of the art. It's certain that their MUST have been a 'Barry Sharpless' or 'Catherine J. Murphy' figure. also, sadly, a lot of 'Karen Wetterhahn'-like people. Genius, lost to an unknown (or rather unconsidered) physical fact of a reagent.

The best example is that of adding mixed nitrogen oxides to a double-bond. With ethene, you get 2-nitroethyl nitrite. Interesting. 2 people discovered this reaction in the 1890s and interestingly both were dead within a year of discovering it. Reaxys & SciFinder find neither of their work. Credit goes to the Nobel laureate Heinrich Wieland who undoubtedly had their works.

I think we need a section called 'dream reaction'. Mine is for Barry to find a reliable, safe, inexpensive reagent to perform chiral hydroaminations on alkenes. His diol was sheer genius... but I WANT MORE!!! ;-)

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