# Show state of matter with chemmacros

Consider the following example.

\documentclass{article}

\usepackage{chemmacros}

\begin{document}

\ch{CaCO3 <=> Ca^{2+}{\aq} + CO3^{2-}{\aq}}

\end{document}


How do I show that the calcium carbonate is in a solid state? I tried both

CaCO3{\s}


and

CaCO3{\solid}


but neither \s nor \solid are defined. (The manual can be found here.)

• It's \sld, see section 19 Phases of the manual – clemens May 12 '13 at 18:37

• \sld (s)
• \lqd (l)
• \gas (g)
• \aq (aq)
There's also the \phase{<phase>} command and it is possible to define additional phase commands which will obey chemmacros' phase options.
\ch{CaCO3\sld}