In a vacuum-sealed fused silica ampule (P = 10 mTorr), 0.3108 g (2.62 mmol) of tin metal shot and 1.3347 g (5.26 mmol) of iodine were reacted. The ampule was heated using a furnace at 200 °C for 60 hours to form the SnI 4 material. The resulting SnI 4 powder would appear brilliant orange-yellow.