|
|
|
|
|
| |
| |
|
Glycol |
 |
| |
 Method
References: Purpald® developed by Aldrich Chemical Company.
Ethylene glycol and propylene glycol are the primary ingredients in commercially-available antifreezes. They are used with various corrosion inhibitors to protect metal surfaces in cooling water systems.
CHEMetrics’ glycol test kits, which employ a chemistry perfected by CHEMetrics, are used to monitor potable waters for contamination from glycol originating in cooling systems.
Stricter limits for stormwater effluent glycol discharges are expected from the USEPA. In addition to the glycol recycling operations, monitoring the efficiency of recovery and collection systems is crucial.
In the colorimetric chemistry, periodic acid oxidizes ethylene glycol and/or propylene glycol to formaldehyde, which reacts with Purpald in alkaline solution. Visual and instrumental test kits are available that report test results in either ppm (mg/L) ethylene or propylene glycol. Correction factors are supplied with all kits to convert test results to the alternate glycol form.
This test requires much less time to perform and involves fewer manipulations than the standard chromotropic acid procedure.
Shelf-life: six months. We recommend stocking quantities that will be used within five months. Refrigeration will dramatically increase the shelf-life of these products. |
| |
| • Click to View MSDS and Kit instructions |
|
| |
 Visual Kits |
1-15 ppm as ethylene glycol
1 ppm / Method: Purpald-Periodate |
| |
Cat# |
| CHEMets Kit |
K-4815 |
| | CHEMets Refill, 30 ampoules, Shelf-life 5 months | R-4815 |
| | Activator Solution Pack, six 10 mL bottles, Shelf-life 2 years | A-4400 |
| | Activator Solution Pack, six 20 mL bottles | A-4401 |
| | Activator Solution Pack, six 10 mL bottles, Shelf-life 2 years | A-4402 |
| | Comparator, Shelf-life 2 years:
1, 2, 3, 4, 5, 6, 8, 10, 15 ppm | C-4815 |
| | Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparator, Activator Solutions, 25 mL sample cup, sample cup top, instructions, and MSDS. | |
|
|
1000-15,000 ppm as ethylene glycol
1000 ppm / Method: Purpald-Periodate |
| |
Cat# |
| VACUettes Kit |
K-4815C |
| | VACUettes Refill, 30 ampoules, Shelf-life 5 months | R-4815C |
| | Activator Solution Pack, six 10 mL bottles, Shelf-life 2 years | A-4404 |
| | Activator Solution Pack, six 20 mL bottles | A-4401 |
| | Activator Solution Pack, six 10 mL bottles, Shelf-life 2 years | A-4402 |
| | Comparator, Shelf-life 2 years:
1000, 2000, 3000, 4000, 5000, 6000, 8000, 10,000, 15,000 ppm | C-4815C |
| | Kit comes in a plastic case and contains everything needed to perform 30 tests (except distilled water): Refill, Comparator, Activator Solutions, dilutor snapper cup, micro test tube, instructions, and MSDS. | |
|
|
|
|
| |
 Instrumental Kits |
0.60-10.00 ppm as ethylene glycol
Purpald-Periodate |
| |
Cat# |
| Vacu-vials Kit, Shelf-life 5 months |
K-4403 |
| | Kit comes in a cardboard box and contains everything needed to perform 30 tests (except distilled water): thirty ampoules, Activator Solutions, 25 mL sample
cup, sample cup top, ampoule blank, instructions, calibration table, and MSDS. | |
|
|
5-65 ppm as propylene glycol
Purpald-Periodate |
| |
Cat# |
| Vacu-vials Kit, Shelf-life 5 months |
K-4423 |
| | Kit comes in a cardboard box and contains everything needed to perform 30 tests (except distilled water): thirty ampoules, Activator Solutions, Stabilizer Solution, 25 mL sample cup, sample cup top, ampoule blank, instructions, calibration table and MSDS. | |
|
|
|
|
| |
Kit Components common to Glycol |
| Description |
Cat# |
| | Sample Cup Pack, 25 mL (6 ea) | A-0013 |
| | Sample Cup Top Pack for 25 mL Cup (6 ea) | A-0014 |
| | Micro Test Tube Pack (10 ea) | A-0015 |
| | Dilutor Snapper Cup Pack (6 ea) | A-0018 |
| | Ampoule Blank Pack (5 ea) | A-0023 |
| | Sample Cup & Cap Pack, 50 mL (6 ea) | A-0058 |
| | Syringe Pack, 10 mL (6 ea) | A-0104 |
|
|
|
|
|
| |
|
