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Reference.org
Gallium monoiodide
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<p>Gallium monoiodide is an inorganic <a href="/facts/Gallium/EucevDs9">gallium</a> compound with the formula GaI or Ga4I4. It is a pale green solid and mixed valent gallium compound, which can contain gallium in the 0, +1, +2, and +3 oxidation states. It is used as a pathway for many gallium-based products. Unlike the <a href="/facts/Gallium_halides/Xq1t5sJ2">gallium(I) halides</a> first crystallographically characterized, gallium monoiodide has a more facile synthesis allowing a synthetic route to many low-valent gallium compounds. </p>