mhchem is a widely-used LaTeX package for chemical notation.
It is not understood natively by pandoc's LaTeX reader. This
filter replaces any \ce{} commands in RawInline, RawBlock,
and Math elements, with Math elements that can be reliably
converted to other formats by pandoc.
Note: this filter requires pandoc 2.16.2 or higher (due to its use of lpeg).
To convert a LaTeX document containing mhchem macros to docx, do
pandoc -f latex+raw_tex -L mhchem.lua input.tex -o output.docx
The -f latex+raw_tex part is essential; it ensures that
bare \ce{} commands will be included in the pandoc AST as
raw TeX, so that this filter can see them.
Related work: