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 number
- 7789-12-0
- Structure
Structure · 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.
Need the Certificate of Analysis for your lot? Just ask.
Tell us the lot number from the container label and we will send the certificate over at no charge.