Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Propylene Glycol Inhibited ACS Grade
ACS Grade
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Sample COA. Lot-specific COAs ship with each order.
Last reviewed 2026-05-20.
COA · Answer summary
Typical certificate of analysis for Propylene Glycol Inhibited ACS Grade. Lot-specific results ship with every order.
- Assay (computed)
- 99.90%
- Grade
- ACS Grade
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (GC) | 99.5 – 100.5 % | 99.9 % | GC |
| Acidity (as acetic) | ≤ 20 ppm | 10 ppm | Titration |
| Chlorides (as Cl) | ≤ 0.5 ppm | 0.15 ppm | ICP |
| Color (APHA) | ≤ 10 APHA | 3 APHA | APHA |
| Iron (Fe) | ≤ 0.5 ppm | 0.01 ppm | ICP-MS |
| Specific Gravity @20°C | 1.033 – 1.039 g/mL | 1.036 g/mL | Hydrometer @ 25°C |
| Sulfate | ≤ 5 ppm | 1 ppm | ICP |
| Water (Karl Fischer) | ≤ 0.2 % | 0.1 % | Karl Fischer |
Generated . Published by Alliance Chemical from first-party canonical product data. Our authority is hands-on chemical handling, DOT/GHS-compliant shipping, and government-registered distribution — not bench chemistry. Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.