abstract |
There is provided a composition for removing residues from the microstructure of an object, comprising: carbon dioxide; an additive for removing the residues comprising a fluoride having the formula NR1R2R3R4F, where R1, R2, R3 and R4 are each independently a hydrogen or an alkyl group; and a co-solvent for dissolving said additive in said carbon dioxide at a pressurized fluid condition. |