Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
30% Propylene Glycol Inhibited
30%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 57-55-6
- Structure
Structure · PubChem - Grade
- 30%
- Answer summary
Sample specification reference for 30% Propylene Glycol Inhibited. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-16 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Propylene glycol content | 29.5 - 30.5 % w/w | 30.0 % w/w | Formulation (batch weights); verified by refractive index against an in-house propylene glycol calibration / relative density (ASTM D1122) |
| Appearance | Clear, colorless to pale yellow liquid, free of sediment and suspended matter (not dyed) | Conforms | Visual |
| Corrosion inhibitor package | 1.8 - 2.2 % w/w (nitrite-containing hybrid organic-acid) | 2.0 % w/w | Formulation (batch weights) |
| Nitrite (as NO2) | 720 ppm min. (calculated 1,300–2,700 ppm at the 2.0% dose) | Conforms | Formulation minimum (calculated from inhibitor dose) |
| Freeze point | 10 °F (-12.2 °C) max | approx. 9 °F (-13 °C) | ASTM D1177 |
| pH, as supplied | 7.0 - 9.0 (typical) | Conforms | ASTM D1287 |
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.
Need the Certificate of Analysis for your lot? Just ask.
Tell us the lot number from the container label and we will send the certificate over at no charge.