Hi

Going off at a tangent...

The accepted spelling by the Royal Society of Chemistry (i.e. the professional 
body representing chemists in the U.K.) since at least the early 1990s has been 
"sulfate" too. "Sulphur", etc, has been deprecated for quite some time. Why? 
Well, there's no good etymological reason for the "ph" in "sulphate". My 1984 
copy of Greenwood and Earnshaw's "Chemistry of the Elements", written in 
Yorkshire, uses "sulfur" etc throughout.

"Phosphorus" comes from the Greek, so retains the "ph"s on both sides of the 
pond.

Element 13 appears to have started life as "alumium", mutated to "aluminum", 
and finally (in the English speaking world outside North America) settled down 
as "aluminium".

Harry
--
Dr Harry Powell

> On 23 Jul 2019, at 17:12, Engin Özkan <eoz...@uchicago.edu> wrote:
> 
>> On 7/23/19 3:35 AM, melanie.voll...@diamond.ac.uk wrote:
>> No longer those 20 odd names for ammonium sulphate
> 
> You mean ammonium *sulfate*. As it is called across the pond. :)
> 
> On a related note on common nomenclature for recording crystallization 
> experiments that Janet brought up:
> 
> I find it odd that we still do not report cryo-protection methods and 
> conditions in PDB depositions. Given that a large fraction of the small 
> molecules observed in crystal structures are derived from the 
> cryo-protectants, one would think that reporting the contents of that 
> solution (and pH) would be paramount to a PDB deposition. Surely, the 
> crystallographic experiment has changed since 1990/use of synchrotron 
> sources, which PDB has adjusted well to in most other aspects (e.g., 
> including reporting of synchrotron x-ray optics and all the new 
> detectors during submission).
> 
> Engin
> 
> 
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