Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Inhibited Propylene Glycol 30/70 with OAT Inhibitor — Data Center Coolant
30%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
Last reviewed 2026-07-16 by Andre Taki, DOT Hazmat Specialist.
COA · Answer summary
Sample specification reference for Inhibited Propylene Glycol 30/70 with OAT Inhibitor — Data Center Coolant. Source-record results are reference values, not measurements for your lot.
- Assay specification
- 29.0 - 31.0 % w/w
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay | 29.0 - 31.0 % w/w | 30.0 % | — |
| Propylene glycol concentration | 29.0 - 31.0 % w/w | 30.0 % | — |
| Inhibitor loading (OAT package) | 1.0–2.5 % OAT inhibitor package | 1.75 % | Batch charge record / ion chromatography of carboxylates |
| Reserve alkalinity | ≥ 1.8 mL at 30 wt % propylene glycol | 2.2 | ASTM D1121 |
| Silicate, phosphate, nitrite, nitrate, borate and amine content | None detected (< 10 ppm each) | 0.3 ppm | ICP-OES / ion chromatography |
| Foaming tendency | Volume ≤ 150 mL; break time ≤ 5 s | Passes test | ASTM D1881 |
| Dipropylene glycol (DPG) | 0.15 wt% max | 0.075 wt% | GC area % (ASTM E202) |
| Freeze point | 9.2 °F (-12.7 °C) max | 9.2 °F (-12.7 °C) | ASTM D1177 |
| Burst protection | ≤ -23 °C (-10 °F) | -25 °C (-13 °F) | Burst test |
| Acidity as Acetic Acid | 0.0015 % max | 0.00045 % | — |
| Chlorides as Cl | 0.58 ppm max | 0.12 ppm | — |
| Heavy Metals as Pb | 1.5 ppm max | 0.06 ppm | — |
| Iron | 0.31 ppm max | 0.03 ppm | — |
| ash | 0.0015% max | 0.00024 % | — |
| Color, Pt-Co | 10 APHA (maximum) | 1.5 APHA | — |
| Appearance | Pass | Passes test | — |
| Suspended Matter | Pass | Passes test | — |
| Composition | 30 % propylene glycol in deionized water with the OAT inhibitor package, by weight | Conforms | By formulation; confirmed by specific gravity |
Specification limits and source-record results are reproduced from the current product reference used by the TDS. This sample is not an issued certificate and does not identify a tested lot. Contact Alliance Chemical with the product and lot number for lot-specific documentation.