Industrial chemicals · Taylor, TX
Certificate of Analysis

Sample Certificate of Analysis

100% Propylene Glycol Inhibited

100%

Category
Alcohols & Glycols (B)
Revision
1.3

Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.

CAS number
57-55-6
Structure
2D chemical structure of 100% Propylene Glycol Inhibited
Structure · PubChem
Grade
100%
Answer summary

Sample specification reference for 100% Propylene Glycol Inhibited. Source-record results are reference values, not measurements for your lot.

Last reviewed 2026-06-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).

Specifications

ParameterSpecificationSource reference resultTest Method
Propylene glycol content95.6 - 96.4 % w/w96.0 % w/wFormulation (batch weights)
AppearanceClear, colorless to pale yellow liquid, free of sediment and suspended matter (not dyed)ConformsVisual
Corrosion inhibitor package3.6 - 4.4 % w/w (nitrite-containing hybrid organic-acid)4.0 % w/wFormulation (batch weights)
Nitrite (as NO2)2,400 ppm min. (calculated 2,650–5,300 ppm at the 4.0% dose)ConformsFormulation minimum (calculated from inhibitor dose)
pH of solution (50% in water)7.0 - 9.0 (typical)ConformsASTM 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.

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Product100% Propylene Glycol Inhibited