| 摘要 |
The invention relates to a powder composition based on a calcium/magnésium compound having formula (I), xCaA.(1−x)[yMgA+(1−y)MgO], in which A is a group ═(OH)2 or ═CO3 and x and y are mole fractions where 0<x=1 and 0=y=1, containing an amount of mineral solid flow agent that is less than 5 wt.-% of the composition, said agent being selected from the group containing vermiculite, perlite, diatomaceous earth and silica, in the form of particles having a size greater than 90 μm.
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