Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Sodium Dichromate Technical Grade
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS番号
- 7789-12-0
- 構造
構造・PubChem - Assay specification
- 99.0% mass min
- Answer summary
Sample specification reference for Sodium Dichromate Technical Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-06-29 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (as Na2Cr2O7·2H2O) | 99.0% mass min | 99.7% mass | — |
| Chloride (as Cl) | 0.05% mass max | 0.0035% mass | — |
| Insoluble matter | 0.2 % by Weight maximum | 0.013 % by Weight | Methods and procedures described in "Reagent Chemicals", American Chemical Society (ACS) Specifications |
| Iron (as Fe) | 30 ppm max | 4.3 ppm | — |
| pH (1% solution) | 3.5–4.5 | 4.0 | — |
| Specific gravity at 20 °C | 2.35 | 2.35 | — |
| Sulphate (as SO4) | 0.2% mass max | 0.051% mass | — |
| Free moisture (surface water) | 0.5% mass max | 0.15% mass | Gravimetric loss on drying, 2 h @ 60 C |
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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