Equilibrium chemistry down to 100 K - Impact of silicates and phyllosilicates on the carbon to oxygen ratioP. Woitke, Ch. Helling, G. H. Hunter, J. D. Millard, G. E. Turner, M. Worters, J. Blecic and J. W. StockA&A, 614 (2018) A1DOI: https://doi.org/10.1051/0004-6361/201732193