Chromatography Forum

Google it, yes indeed, and it was educating. The problem is not with the formal thermodynamics, the problem is that the word "volatile", which could in principal cover all the substances that can be vapours (at room temp), is generally understood, and formally defined in terms of the use of "volatiles" and "semi-volatiles" in official methods, to mean substances with low molecular weights and high vapour pressures at room temperature. In other words "volatile" actually means "very volatile". All else being equal, very volatile substances are also very fugacious, and squalene for example is neither volatile (in the restricted sense) nor fugacious. So as the blanket term that I am looking for, fugacity and volatility have the same drawbacks.

Peter

No.
Volature is "this substances can be fly" If we said about gas chromatography - we memory (know) small detal "in this condition, in this temperature"

how about Evanescent?
http://www.merriam-webster.com/dictionary/evanescent

The word certainly beautiful , but for "non-native speakers" completely incomprehensible without a dictionary and a pint of alcohol .

Evanescent = ressembling a very tall mountain?

"Evanescent" has connations of fleeting and temporary, so is not a good term for sticky compounds like steroids and cyclic musks which are very persistant.

DSP your latin is better than mine, looking up on the web; "Volature" is the vocative masculine singular of volātūrus, volaturus is the future active participle of volō (“I fly”); "about to fly". This plainly has the same root as "volatile", and a latin phrase or word with the connotation of "capable of flying" would have an impressive air of classical scholarship !! So we might be getting somewhere.

Anyone know any classical Greek ??

Peter

I think there probably are very deep layers of prehistoric people's consciousness, hidden in the language and spontaneously applied by the authors of the first scientific works, the times of F. Bacon and Paracelsus.


1) At the all nations of Europe had a great influence Christianity and religious texts.
In Western Europe, Christianity, at first was a Catholic and texts were in Latin, and only after 700 years, during the Reformation were re-translated into the emerging national languages.
In Eastern Europe, Christianity was taken later and religious texts were immediately transferred to the Proto-Slavic (Church Slavic) language, which has changed over 1000 years, very little, texts 1000 years ago such as " Velesova kniga (bookovica)" , " Povest vremennyh let" or " Slovo o polku Igorevom" not need additional translation into the now days language .
It should be noted that the Russian Reformation era Nikon (1655-1668 ) was held at 100-200 years later, European and not accompanied by big religious wars, with a total negation of the previous religious books.

2) Slavic languages ​​closer to the Roman (and Latin), than the German. Or rather better preserved, since the construction of words and sentences in Russian language freely admits borrowing the terms of any Indo-European, Finnish and Turkic languages

Therefore, in the Russian language preserved ancient translation Nagornaya propovodi (Sermon on Mount) [Kak pticy vol'nie] "Like a bird free" and the word "vola" - that is, complete freedom, limited only by external, independent of the object forces. How to fly a air balloon without the сotton thread.

In English, as I now look http://bible.cc/matthew/6-26.htm- the birds are not associated with freedom , not with the flight, but associated with habitat (air and sky). But certainly in ancient times in sermons standing Latin volature, that is "free as a bird in flight," " no having connection with the land" , and lesson "will" corresponding too unlimited free.
And after a change of religious language, and even after rationalization thinking the root of the word "Volat" has retained its original sacred meaning.

What I mean.
The fact that a change in the established terms should be approached very cautiously. May get a term "scientify describing the scientific process". But intuition its not clear and therefore uncomfortable for people.

With DSP's latin scholarship as a jumping off point I sniffed around on the web and came up with: volant - Flying; able to fly, capable of flight. http://www.oed.com/view/Entry/224389?re ... volant#eid

This has the same root as volatile, and the advantage that it is not in common use and so has not picked up a range of meanings.

So both acetic acid and androstenone are volant organic compounds - glucose and proteins are not volant. Admittedly the top end of the volant range has a ragged edge, but if that was really a problem is would be possible to specify a minumum vapour pressure at a specified temperature for the volant label to be applied.

As an additional advantage in my particular field of semiochemistry, volant is also applied to animals that fly, so it will be understood by my zoological colleagues.

What do you think - does this capture compounds that can be in the vapour phase around room temperature ? Would your linguistic hackles rise if you came across "volant" in a chemistry publication, or would you have to look it up ?

Peter

I don't like to have to use a dictionary for the "non sicentific" terms when I read a paper. If you define the term as you start your description in your paper - this could be good. I am forever describing molecues as "sufficiently volatile" as I try to explain to non-scientists how cholseterol makes it in the vapor phase from one end of the GC column to the other. This could add a word to the vocabulary that gets around "semivolatile" compounds - which appear to be pretty volatile to those of us who look at the heaver volant compunds.

Hi Don

In a similar vein; biochemists think that cholesterol is a "small molecule".

Peter

Flying substancies is a good, clear termine . But only to teta'a'tete ( face visuable speach).
But , regard Peter (Apps) - newsletter " GC-MS determination flying androstenone in flier bat blood" looks like a parody