Hanna Instruments

Scientific Equipment

Safety Data Sheets

SDS search & quick download

Free Delivery

Most of mainland GB for orders over £50. Other charges may apply - see more

Hanna Care

We take the long view, looking after existing customers as much as delighting new ones!

Certificates of Analysis

Download a copy of the certificate of analysis for your solution

HI-755-26 Reagent for Marine Alkalinity pocket checker HI-755 (25 tests)

HI-755-26 Reagent for Marine Alkalinity pocket checker HI-755 (25 tests)

Hanna HI-755-26 Liquid Alkalinity reagents for pocket checker HI-755 (25 tests)

HI-755-26 Reagent for Marine Alkalinity pocket checker HI-755 (25 tests)

25 tests
Results in ppm of CaCO3
In Stock
£10.70 (exc. VAT) £12.84 (inc. VAT)

Liquid Alkalinity reagents for marine pocket checker HI-755 (25 tests).

  • Pre-made reagents for ease of use
  • Prepared with high purity chemicals
  • Marked with expiry date and lot number for traceability
  • HI-755-26 Reagent for Marine Alkalinity pocket checker HI-755 (25 tests) information

    Hanna's extended description

    Reagents for HI-755 Alkalinity Pocket Checker

    Liquid reagent for 25 tests for use with the HI-755 Alkalinity Pocket Checker.

    The HI-755-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Marine Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colours from yellow to green to blue to develop. By simply adding the solution of HI-755-26 to the sample, the reaction will take place and the Marine Alkalinity Checkers will determine the concentration from the colour that is produced. The results will be displayed in ppm of CaCO3. These reagents are designed to be used with samples that have an expected range of 0 to 300 ppm CaCO3.

    Tip for an accurate measurement

    It is important that the sample does not contain any debris.

    Whenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.

    Shaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.

    Do not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.

    After the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.

    Use HI-755-11 Calibration Checking Set with the HI-755.


    Specifications list


    Package Bottles
    Quantity 25 tests
    Method Colorimetric Method
    Always a fast and efficient service

    One of the best test kits I have ever used! - by Trusted Customer


    Liquid reagent very easy to use - by Trusted Customer

    Good service and fast delivery

    Excellent quality - by Trusted Customer

    Great service and fantastic products. Good work Hanna!

    Wouldn't be without this tester now. It's easy to use and only takes a couple of minutes to test. - by Trusted Customer

    Really excellent service, very good communication and fast delivery

    First class products - by Trusted Customer

    Excellent service, fast delivery

    Good value for money - by Trusted Customer

    Great website. Clear listing and descriptions of all products.

    Great test kit, easy to use, and most accurate and consistent results. - by Trusted Customer


    Good product, great service again - by Peter Pullen

    Questions & Answers

    Got a question to ask? Use this form to submit your question.
    Question will be displayed after moderation.
    Name* Product Question*
    No questions yet?
    Don 't be shy, be the first to ask.