Experiment
Near-infrared reflectance spectra at low temperature (300-90K) of Salammoniac and delta-Ammonium chloride (phase IV) [NH4Cl] powders with three grain size ranges (32-80, 80-125 and 125-150µm)
Sub-Experiment
32-80 µm grain sizes
Sub-Experiment
cooling down around phase II-IV transition at 242K
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 290K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 270K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 245K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 244K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 243K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 242K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 241K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 240K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 239K (down) with 32-80 µm grain sizes
Sub-Experiment
warming up in phase IV (delta) (90-230K)
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 90K (down) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 100K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 110K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 120K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 130K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 140K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 150K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 160K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 180K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 200K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 220K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 230K (up) with 32-80 µm grain sizes
Sub-Experiment
warming up around phase IV-II transition at 242K
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 239K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 240K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 241K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of delta-Ammonium chloride (phase IV) powder at 242K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 243K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 244K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 245K (up) with 32-80 µm grain sizes
Spectrum
Near-infrared reflectance spectra of Salammoniac (beta-Ammonium chloride, II) powder at 270K (up) with 32-80 µm grain sizes
Layer
- Name
- Layer #1
- Type of layer
- granular
- Thickness
- 3.0 $\pm$ 0.1 $mm$
- Mass
- 0.177 $\pm$ 0.002 $g$
- Texture
- loose fine grained
- Type of porosity
- open pores
- Porosity
- 0.649 $\pm$ 0.005
- Density
- 0.526 $\pm$ 0.01 $g.cm^{-3}$
- Formation mode
- manual deposition
- Temperature
- 300.0 $K$
- Comments
- slightly smoothing the surface by sliding a flat aluminium plate