Spectrum

MIR absorbance spectrum of Portlandite at 0°C under 2bar CO2 gas - 7 min

Title
MIR absorbance spectrum of Portlandite at 0°C under 2bar CO2 gas - 7 min
DOI
10.26302/SSHADE/EXPERIMENT_AG_20130923_000
Data reference
Garenne, Alexandre (2011): Evolution with time of the MIR absorbance spectrum of Portlandite at -10, 0 and 10°C in contact with 2 bar CO2 gas. SSHADE/GhoSST (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_AG_20130923_000
Publications
Database
Experimentalists
Experiment type
laboratory measurement
Type
absorbance
Instrument
Brucker Vertex 70 + Hyperion 3000 – micro-transmission Mid-IR
Sample holder
temperature, pressure and gas controled environmental cell (IR-CryoCell),cooled by liquid nitrogen, KBr windows
Standard medium
vacuum
Observation mode
spectrum
Spectral range type(s)
MIR
Valid spectral range(s)
Min - Max ($cm^{-1}$) Sampling ($cm^{-1}$) Resolution ($cm^{-1}$) Position accuracy ($cm^{-1}$) Absorption edge
#1 500.0 - 2220.0 1.928364834 4.0 0.1
#2 2400.0 - 4000.0 1.928364834 4.0 0.1
Scan number
320
Observation geometry
direct
Observation mode
fixed angles
Observation mode
single spot
Spots number
1
Objective type
objective X15
Image size
50.0 x 50.0 ${\mu}m$
Resolutions
50.0 ${\pm}$ 20.0 ${\mu}m$
Name
Portlandite 96% Sigma-Aldrich 0C 2b CO2 7min
Changes
Formation of carbonates and reduction of portlandite proportion
Experiment
Evolution with time of the MIR absorbance spectrum of Portlandite at -10, 0 and 10°C in contact with 2 bar CO2 gas
Date begin
2011-05-18
Release date
2018-01-31 23:51:01 UTC+0000
Version (Date)
#1 (2018-01-31 23:51:01 UTC+0000, Updated: 2020-01-28 19:27:59 UTC+0000)
History
Date Mode Version Status Comments
2017-07-04 10:13:32 UTC+0000 first import #1 valid version 2013-10-03: new MIR transmission spectrum of Portlandite at 0°C under 2b CO2 gas
Analysis
raw transmission spectra converted in absorbance, without baseline correction. CO2 gas absorptions in the ranges 645-710, 2230-2400, 3670-3750 cm-1
Quality flag
4
Validator(s)