Mhchem with decimal ratios

Question

Without using full math-mode, does anyone know how to use the mhchem package with non-integer atomic subscripts.

Consider the following:

\documentclass{article}
\usepackage[version=3]{mhchem}

\begin{document}
    %Works
    \ce{Fe98C2}     

    %Doesn't Work.
    \ce{Fe97.5C2.5} 
\end{document}

The Second Formula I am seeking effectively:

Fe$_{97.5}$C$_{2.5}$

@Leeser Sorry, I didn't see your comment while posting my answer. If you want to post it as an answer, I'll delete mine. — karlkoeller, Jun 13 '13 at 08:00
@karlkoeller Thanks for your generosity...I probably need the kudos more than you !!!! I will post as an answer — Leeser, Jun 13 '13 at 08:42
@ Leeser, you've beaten me for a minute, so the answer is yours:-) — karlkoeller, Jun 13 '13 at 08:45

score 7 · Accepted Answer · answered Jun 13 '13 at 08:43

7

You can simply place the non-integer part inside curly brackets

\ce{Fe_{97.5}C_{2.5}}

As @karlkoeller mentioned in a similar answer (now deleted), the . is a special character inside \ce

answered Jun 13 '13 at 08:43

Leeser

2,752

Just to mention: the special character is there for specifying adducts in chemical formulae – cgnieder Jun 13 '13 at 11:26

Mhchem with decimal ratios

1 Answers1