How come this Chinese research paper lacks a DOI?

@GaurangTandon Probably because they're not particularly reputable.

@orthocresol hmmm

@Loong may I ask the motivation behind: "You should also not rely on chemical catalogues (e.g. Sigma-Aldrich) or online databases (e.g. ChemSpider)."? (src)

do you intend to convey that they often generate incorrect names?

Yes, such sources sometimes tend to use the traditional names that have been frequently used in the past (e.g. in literature) but don't necessarily promptly follow the changes in IUPAC recommendations or are not updated at all. Thus, if you want to be sure that a name is in accordance with the current nomenclature recommendations, better don't rely on such sources. However, the names are not necessarily incorrect.

okay, thanks!

@Loong "better don't rely on such sources." I'll rather rely on Loong ;)

Always check yourself if you want to be really sure.

And also note in that meta post:

> These guidelines are meant to be recommendations, not absolute rules.

aye aye

Need help

@Loong Can u share with me some properties of partial derivative that

we use in chemical thermodynamics

I dont understand chain rule and stuffs in such partiial deriavtives...

Prooving stuffs like Cp-Cv=R using partial derivatives...

Sometimes they don't simpy give u R by leave it in the form of derivatives...

I can't reach iupto that

drive.google.com/file/d/1o61jwzK6hZelXVdaJQHFDH9ZFU7eVN37/…;

refer to page 33 of the pdf

Last part... Where the functions are expressed in differentials...

I can understand nothing over there.

You mean something like this?

Absoutely

But I can't decipher the properties and how they will break

btw refer to page 33 of the pdf that I sent u

Pls

Hi all