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

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

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

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

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

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

Spectrum Near-infrared reflectance spectra at 270K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 80-125µm grain size Spectrum Near-infrared reflectance spectra at 290K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 80-125µm grain size

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

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

Spectrum Near-infrared reflectance spectra at 270K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 125-150µm grain size Spectrum Near-infrared reflectance spectra at 290K of Diammonium hydrogen phosphate-delta [(NH4)2HPO4] powder with 125-150µm grain size