Transcription of (Perchloric acid titration ASTM 2896-01 and ISO 3771)
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(Perchloric acid titration ASTM 2896-01 and ISO 3771)
IntroductionThe Base Number determination is a measurement ofthe basic constituents of petroleum products. Thistitration uses perchloric acid in glacial acetic acid astitrant in a specific non-aqueous titration performs an inflection point determinationtaking into account the total volume of titrantnecessary to detect an inflection result is expressed as mg of potassium hydroxidefor 1 g of titrant concentration is and the molar weightof KOH is g/molIf the titration curve is poorly defined with no inflectionpoint detected, it is necessary to run a back titration (see "back titration " note).Electrode and reagentsAs the titration occurs in nonaqueous media, it isrecommended to work with separate electrodes and athree-electrode system (see electrode maintenanceand storage notes).pHG311 Glass Electrode (part ) with aCL114 cable (part no. A94L114) as measuring electrode,REF451 (part no.)
Introduction The Base Number determination is a measurement of the basic constituents of petroleum products. This titration uses perchloric acid in glacial acetic acid as
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