Industrial chemicals · Taylor, TXCertificate of AnalysisSample Certificate of Analysis
n-Heptane 99% ACS
99%
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Sample COA. Lot-specific COAs ship with each order.
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (GC-FID) | 98.5 – 99.5 % | 99 % | GC-FID |
| Appearance/Odor | — | — | Visual Inspection |
| Color (APHA) | ≤ 10 APHA | 2 APHA | ASTM D1209 |
| Distillation Range | 92 – 100 °C | 96.5 °C | ASTM D1078 |
| Residue/Non-volatile | ≤ 0.0025 % | — | Residue on Ignition |
| Specific Gravity @20°C | 0.6422 – 0.687 g/mL | 0.676 g/mL | Hydrometer @ 25°C |
| Sulfate (SO4) | ≤ 5 ppm | — | Ion Chromatography |
| Sulfur | ≤ 0.005 % | 0 % | Per specification |
| Water (Karl Fischer) | ≤ 0.05 % | 0 % | ASTM E203 / ISO 6296 |
Generated . Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.