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Glycol Test Kit

Visual Kit

Range MDL Method Type Kit Cat. No. Refill
1 - 15 ppm & 10 - 300 ppm EG
(up to 30,000 ppm w/dilution)
1 ppm Purpald-Periodate CHEMets K-4815 R-4815

Note: Click on the ‘Kit Cat. No.’ to view the test instructions.

CHEMetrics offers test kits employing the well-known Purpald reagent to deliver sensitivity and accuracy within minutes. Based on CHEMetrics patented Self-Filling Reagent Ampoule technology. Premixed. Premeasured. Precise.

The Purpald-Periodate Method

In the colourimetric chemistry, periodic acid oxidises ethylene glycol and/or propylene glycol to formaldehyde, which reacts with Purpald in alkaline solution. Test results are expressed as ppm (mg/l) ethylene glycol.

This test requires much less time to perform and involves fewer manipulations than the standard chromotropic acid procedure.

To convert results to ppm propylene glycol, multiply by 2.

Test kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, 1 -15 ppm Flat Comparator, Activator Solutions, 25ml sample cup, sample cup top, 3ml syringe and test instructions.

Shelf-life: five months. We recommend stocking quantities that will be used within four months.

Purpald® developed by Aldrich Chemical Company.
Fritz, James S. and Schenk, George H., Quantitative Analytical Chemistry, 4th ed., p. 277 (1979).

Dilution Kit

Using the Glycol test kit in conjunction with the optional dilution kit A-0188, the analyst is able to measure ethylene glycol concentration in variety of ranges between 10 and 30,000 ppm:

1 - 15 ppm 100 - 1,500 ppm (100×) 800 - 12,000 ppm (800×)
10 - 150 ppm (10×) 200 - 3,000 ppm (200×) 2,000 - 30,000 ppm (2000×)
20 - 300 ppm (20×) 400 - 6,000 ppm (400×)  

Please see the Dilution Kit page for more information.


Ethylene glycol and propylene glycol are the primary ingredients in commercially-available antifreezes and engine coolants. They are used with various corrosion inhibitors to protect metal surfaces in cooling water systems.

CHEMetrics glycol kits are used to monitor potable waters for glycol contamination originating from glycol in cooling systems. They are also used to detect glycol in storm water effluent and airplane deicing operations and to monitor glycol recycling operations.

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