Gaois

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2 results

    • Ceimic Chemistry

    #1421

    aife bain4
    ga
    gu aife

    (chemistry)

    Lig dó seasamh ar feadh 15 nóiméad, ansin athchoigeartaigh an pH go dtí idir 8.1 agus 8.2 le tris (hiodrocsaimeitil) aimínmheatán (4.7) agus fiuch faoi aife (5.4) ar feadh 10 nóiméad, á chorraí ar feadh an ama.

    Allow to stand for 15 minutes, then readjust the pH to 8.1 to 8.2 with tris (hydroxymethyl) aminomethane (4.7) and boil under reflux (5.4) for 10 minutes with constant stirring.

    • Innealtóireacht Cheimiceach Chemical Engineering

    #6562

    a device on which reflux condenses in the distillation process

    Public Works and Government Services Canada

    Tar éis 10 ml d'aigéad ortafosfarach 70%, cuid mhaith clocha frithghreadta agus 0.5 ml d'eibleacht fhrith-choipthe a chur leis, cuirtear an scarthóir agus an comhdhlúthadán aife ar an bhflaigín.

    After the addition of 10 ml. of 70 per centum orthophosphoric acid, several anti-bumping granules and 0.5 ml. of anti-foaming emulsion, the separator and the reflux condenser are fitted on to the flask.