Spectrum MIR absorbance spectrum of Portlandite at 25°C under air Spectrum MIR absorbance spectrum of Portlandite at -10°C under vacuum Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 4 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 11 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 30 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 60 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 115 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 180 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 245 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 300 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 360 min Spectrum MIR absorbance spectrum of Portlandite at -10°C under 2bar CO2 gas - 420 min