Molecular Formula GaAs Molecular Weight 144.64 g/mol Crystal Structure Cubic Color Metallic dark gray Odor Garlicky when moist Melting Point 1238 °C Solubility <1 mg/mL at 20 °C Density 5.3176 at 25 °C Table 1. Properties of Gallium arsenide. Structure Gallium arsenide (GaAs) consists of larger arsenic atoms (violet) connected to somewhat smaller gallium atomsContinue reading “Gallium arsenide”