Experiment
Near-infrared reflectance spectra at low temperature (110-290K) of delta, gamma and beta Diammonium hydrogen phosphate [(NH4)2HPO4] powders with three grain size ranges (32-80, 80-125 and 125-150µm)
Sub-Experiment
32-80 µm grain sizes
Sub-Experiment
Phase delta: 110-160K
Spectrum
Near-infrared reflectance spectra at 110K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 120K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 130K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 140K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 150K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 160K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 32-80µm grain size
Sub-Experiment
Phase delta-gamma transition: 170-173K
Spectrum
Near-infrared reflectance spectra at 170K of the transition between Diammonium hydrogen phosphate-beta and gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 171K of the transition between Diammonium hydrogen phosphate-beta and gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 172K of the transition between Diammonium hydrogen phosphate-beta and gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 173K of the transition between Diammonium hydrogen phosphate-beta and gamma [(NH4)2HPO4] powder with 32-80µm grain size
Sub-Experiment
Phase gamma: 174-245K
Spectrum
Near-infrared reflectance spectra at 174K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 175K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 176K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 177K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 180K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 190K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 200K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 210K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 220K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 230K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 243K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 244K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 245K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 32-80µm grain size
Sub-Experiment
Phase beta 246-290K
Spectrum
Near-infrared reflectance spectra at 246K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 247K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 248K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 249K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 270K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Spectrum
Near-infrared reflectance spectra at 290K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 32-80µm grain size
Sub-Experiment
80-125 µm grain sizes (300K)
Sub-Experiment
Phase delta: 110-160K
Spectrum
Near-infrared reflectance spectra at 110K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 120K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 130K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 140K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 150K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 160K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 80-125µm grain size
Sub-Experiment
Phase gamma: 180-220K
Spectrum
Near-infrared reflectance spectra at 180K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 190K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 200K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 210K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 80-125µm grain size
Spectrum
Near-infrared reflectance spectra at 220K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 80-125µm grain size
Sub-Experiment
125-150 µm grain sizes (300K)
Sub-Experiment
Phase delta: 110-160K
Spectrum
Near-infrared reflectance spectra at 110K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 120K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 130K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 140K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 150K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 160K of Diammonium hydrogen phosphate-beta [(NH4)2HPO4] powder with 125-150µm grain size
Sub-Experiment
Phase gamma: 180-220K
Spectrum
Near-infrared reflectance spectra at 180K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 190K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 200K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 210K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 125-150µm grain size
Spectrum
Near-infrared reflectance spectra at 220K of Diammonium hydrogen phosphate-gamma [(NH4)2HPO4] powder with 125-150µm grain size
- Instrument
- SHINE Spectro-Gonio bidirectional reflection Vis-NIR
- Spectral observation mode
- spectrum
- Valid spectral range(s)
- 1000.0 - 1600.0 $nm$ ; 1610.0 - 2830.0 $nm$ ; 2840.0 - 3200.0 $nm$ ; 3220.0 - 4180.0 $nm$ ; 4340.0 - 4600.0 $nm$
- Observation geometry
- bidirectional : i=0.0° ; e=20.0° ; az=0.0° ; ph=20.0°
- Angle observation mode
- fixed angles
- Spatial observation mode
- single spot
- Name
- Ammonium hydrogen phosphate powder (Phase beta) - grains: 32-80µm
- Origin
- commercial
- Texture
- loose fine grained
- Thickness
- 4.5 $\pm$ 0.1 $mm$
- Temperature
- 173.0 $\pm$ 0.5 $K$
- Fluid
-
- $N_2$ , 100.0%
References
- Data reference
- Fastelli, Maximiliano; Schmitt, Bernard; Beck, Pierre; Poch, Olivier (2021): Near-infrared reflectance spectra at low temperature (110-290K) of delta, gamma and beta Diammonium hydrogen phosphate [(NH4)2HPO4] powders with three grain size ranges (32-80, 80-125 and 125-150µm). SSHADE/CSS (OSUG Data Center). Dataset/Spectral Data. https://doi.org/10.26302/SSHADE/EXPERIMENT_BS_20241809_001