Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Boric Acid Technical Grade
Technical
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 10043-35-3
- Structure
Structure · PubChem - Grade
- Technical
- Assay specification
- 99.90% min.
- Answer summary
Sample specification reference for Boric Acid Technical Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-18 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (H3BO3) | 99.90% min. | 99.94 % | — |
| Boric oxide (B2O3) | 56.00% min. | 56.27 % | — |
| Equivalent H3BO3 (alternate technical-grade limit, U.S. Borax Optibor TG) | 99.9-100.9 | 100.4 | U.S. Borax analytical methods |
| Sieve, % retained on U.S. No. 20 (0.850 mm) — granular technical grade only | ≤2.0 | 0.6 % | — |
| Chloride (Cl) | 15 ppm max. | 3.0 ppm | — |
| Iron (Fe) | 10 ppm max. | 2.2 ppm | — |
| Sulfate (SO4) | 500 ppm max. | 130 ppm | — |
| Water insoluble matter | 0.010 % max. | 0.0023 % | Gravimetric — hot water dissolution, filtration through tared Gooch crucible |
| pH, 1 % aqueous solution @ 25 C | 4.6 - 5.4 | 5.1 | Potentiometric, calibrated pH meter |
| Bulk density, loose (granular) | 0.85 - 1.00 g/cm3 | 0.937 g/cc | Loose-pour, graduated cylinder |
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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