Industrial chemicals · Taylor, TXCertificate of AnalysisSample Certificate of Analysis
Propylene Glycol 40% – Technical Grade
Technical Grade · 40%
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Sample COA. Lot-specific COAs ship with each order.
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (GC) | 39.5 – 40.5 % | 40 % | GC |
| Acidity (as acetic) | ≤ 0.001 % | — | Titration |
| Acidity (as acetic) | ≤ 10 ppm | 3 ppm | Titration |
| Appearance/Odor | — | — | Visual Inspection |
| Chlorides (as Cl) | ≤ 0.2 ppm | — | ICP |
| Color (APHA) | ≤ 10 APHA | 3 APHA | APHA |
| Color (Lovibond) | ≤ 10 Y/R | 3 Y/R | AOCS Cc 13e-92 |
| Heavy Metals (as Pb) | ≤ 2 ppm | — | ICP-MS |
| Iron (Fe) | ≤ 0.2 ppm | — | ICP-MS |
| pH | 6 – 8 | 7 | pH Meter |
| Specific Gravity @20°C | 0.785 – 0.787 g/mL | 0.786 g/mL | Hydrometer @ 25°C |
| Water (Karl Fischer) | ≤ 0.05 % | 0.02 % | Karl Fischer |
Generated . Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.