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    ชุดทดสอบโบรอน (0.0-5.0 mg/L)

    HI 38074
    Boron Test Kit
    Product Description:

    Boric acid/borate react with chemical compounds containing multiple hydroxyls groups (polyols) such as mannitol, generating anionic complexes at the neutral pH of water.

    The borate esters are formed and dissociated spontaneously in a variety of pH dependent equilibria. During to the release of acidic protons during complexation there is a concomitant decrease of pH which tends to reverse the reaction and thus, in order to maintain stable complexes there is a need to avoid pH decrease. The amount of acidification produced upon the addition of mannitol is proportional to the extent of borate ester formation.

    The HI 38074 test kit can determine boron concentration in irrigation waters by direct titration of boric acid.

    Order Information:

    HI 38074 test kit comes with reagent for 100 tests, HI 98103 Checker pocket pH meter, pH 4.01 (1 sachet), pH 7.01 (1 sachet), screwdriver, 120 mL bottle with cap, 50 mL calibrated vessel, and 1 mL plastic pipettes (2).

    Method           Titration
    Range           0.0-5.0 mg/L
    Smallest Increment           0.2 mg/L
    Chemical Method           Boric Acid
    Number of Tests           100
    Weight           780 g





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