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    KF Application Note No. K-26: Title: Water in Used Lubricating Oil

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    lark_
    This document summarizes a method for determining the water content in used lubricating oil using Karl Fischer titration. The method injects a 0.4g sample of used oil into a coulometer containing a special reagent to prevent side reactions. The coulometer measures the water content, obtaining a result of 631 +/- 23 ppm of water in the sample.

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    KF Application Note No. K-26: Title: Water in Used Lubricating Oil

    Uploaded by

    lark_
    14 views1 page
    This document summarizes a method for determining the water content in used lubricating oil using Karl Fischer titration. The method injects a 0.4g sample of used oil into a coulometer containing a special reagent to prevent side reactions. The coulometer measures the water content, obtaining a result of 631 +/- 23 ppm of water in the sample.

    Original Description:

    k26

    Original Title

    695461_AN-k026

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    This document summarizes a method for determining the water content in used lubricating oil using Karl Fischer titration. The method injects a 0.4g sample of used oil into a coulometer containing a special reagent to prevent side reactions. The coulometer measures the water content, obtaining a result of 631 +/- 23 ppm of water in the sample.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    14 views1 page

    KF Application Note No. K-26: Title: Water in Used Lubricating Oil

    Uploaded by

    lark_
    This document summarizes a method for determining the water content in used lubricating oil using Karl Fischer titration. The method injects a 0.4g sample of used oil into a coulometer containing a special reagent to prevent side reactions. The coulometer measures the water content, obtaining a result of 631 +/- 23 ppm of water in the sample.

    Copyright:

    © All Rights Reserved
    Download as PDF, TXT or read online from Scribd
    Download as pdf or txt
    of 1

    KF Application Note No.

    K- 26
    Title: Water in used lubricating oil

    Summary: The water content of used lubricating oil is determined according to


    Karl Fischer by coulometric titration. To prevent unwanted side reac-
    tions special KF reagents are used.

    Sample: Used lubricating oil

    Sample
    Preparation: none

    Instruments and
    Accessories: 737 KF Coulometer, cell with diaphragm; 728 Magnetic Stirrer,
    printer

    Analysis: Start the 737 KF Coulometer to condition the reagent in the meas-
    uring cell. When the drift is steady and below 10 ug/min inject ca. 0.4
    g sample using a syringe. Exchange the reagent in the cathode
    compartment as soon as ist colour changes from brown to yellow.

    Reagents:
    Hydranal Coulomat CK and Hydranal Coulomat AK (Riedel-de
    Haën)

    Results: AVG(9) = 631 +/- 23 ppm water

    Settings: 737 KF Coulometer

    smpl.req. on
    d.start 16 ug/min
    extr. 10 s
    stop drift: auto
    delay time 3s
    report: full

    K-26/1

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