Industrial chemicals · Taylor, TXCertificate of AnalysisSample Certificate of Analysis
Hydrofluorosilicic Acid 23% (HFS)
23%
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Sample COA. Lot-specific COAs ship with each order.
Specifications
| Parameter | Specification | Typical Result | Test Method |
|---|---|---|---|
| Assay (Titration) | 22.5 – 23.5 % | 23 % | Titration |
| Appearance/Odor | — | — | Visual Inspection |
| Arsenic & Antimony (as As) | ≤ 50 ppm | 6.2 ppm | ICP-MS |
| Color (APHA/Hazen) | ≤ 200 APHA | 8 APHA | Spectrophotometry |
| Fluoride (F) | ≤ 1 ppm | 0.76 ppm | Ion Chromatography |
| Heavy Metals (as Pb) | ≤ 5 ppm | 4 ppm | ICP-MS (as Pb) |
| Iron (Fe) | ≤ 70 ppm | 35 ppm | ICP-MS |
| Lead (Pb) | ≤ 200 ppm | 1.13 ppm | ICP-MS |
| Phosphate (PO4) | ≤ 4000 ppm | 0.01 ppm | ICP |
| Specific Gravity @20°C | 1.19 – 1.21 g/mL | 1.2 g/mL | Hydrometer @ 25°C |
Generated . Values are representative of typical production lots and reflect the published specification range. Lot-specific COAs are provided with every shipment.