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
Layer
- Name
- Layer #1
- Type of layer
- granular
- Thickness
- 4.5 $\pm$ 0.1 $mm$
- Mass
- 0.614 $\pm$ 0.005 $g$
- Texture
- loose fine grained
- Type of porosity
- open pores
- Porosity
- 0.669 $\pm$ 0.02
- Density
- 0.536 $\pm$ 0.025 $g.cm^{-3}$
- Formation mode
- manual deposition
- Temperature
- 174.0 $K$
- Comments
- formed by cooling phase delta to phase beta (through phase gamma) at 110K
- Number
- 1
- Arrangement
- single material
- Materials