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a colorless gas, HI, having a suffocating odor: the anhydride of hydriodic acid.
a colourless poisonous corrosive gas obtained by a catalysed reaction between hydrogen and iodine vapour: used in making iodides. Formula: HI
an aqueous solution of this gas; hydriodic acid


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  • Hydrogenize

    [hahy-druh-juh-nahyz, hahy-droj-uh-] /ˈhaɪ drə dʒəˌnaɪz, haɪˈdrɒdʒ ə-/ verb (used with object), hydrogenized, hydrogenizing. 1. . /ˈhaɪdrədʒɪˌnaɪz; haɪˈdrɒdʒɪˌnaɪz/ verb 1. variants of hydrogenate

  • Hydrogenolysis

    [hahy-droh-juh-nol-uh-sis] /ˌhaɪ droʊ dʒəˈnɒl ə sɪs/ noun, plural hydrogenolyses [hahy-droh-juh-nol-uh-seez] /ˌhaɪ droʊ dʒəˈnɒl əˌsiz/ (Show IPA) 1. decomposition of a compound resulting from its interaction with . /ˌhaɪdrəʊdʒɪˈnɒlɪsɪs/ noun 1. a chemical reaction in which a compound is decomposed by hydrogen

  • Hydrogenous

    [hahy-droj-uh-nuh s] /haɪˈdrɒdʒ ə nəs/ adjective 1. of or containing . /haɪˈdrɒdʒɪnəs/ adjective 1. of or containing hydrogen

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