Hi Thomas,
On Thu, Aug 14, 2025 at 14:43 (+0200), Thomas Meyer wrote:
> Hi folks,
> I try to write
> \chemical{Na + H_2O → NaOH + 1/2 H_2}
> and it works. But I do not like 1/2 that way.
> But if I want to use
> \chemical{Na + H_2O → NaOH + \frac{1}{2} H_2} %\frac or variants of it
> it doesn't work.
> \chemical{Na + H_2O → NaOh +}\frac{1}{2}\chemical{H_2}
> doesn't work too.
> \startformula
> \chemical{Na + H_2O → NaOH +}\xxfrac{1}{2}\chemical{H_2} % and some
> other variants of \frac
> \stopformula
> does work, but the distance between + and the \frac-expression is to large.
> Any hints?
At the risk of using the frowned-upon $ syntax, have you tried
\chemical{Na + H_2O → NaOH + $\frac{1}{2}$ H_2}
This works for me, without the extra space of your last try.
Jim
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