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