Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Trisodium Phosphate Dodecahydrate - ACS Reagent Grade
ACS Reagent
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 10101-89-0
- Structure
Structure · PubChem - Grade
- ACS Reagent
- Assay specification
- 98.0 - 102.0 %
- Answer summary
Sample specification reference for Trisodium Phosphate Dodecahydrate - ACS Reagent Grade. Source-record results are reference values, not measurements for your lot.
Last reviewed 2026-07-17 by Andre Taki, Chief Commercial Officer, DOT Hazmat–certified (49 CFR 172.704).
Specifications
| Parameter | Specification | Source reference result | Test Method |
|---|---|---|---|
| Assay (Na3PO4·12H2O) | 98.0 - 102.0 % | 99.8 % | — |
| Appearance / description | White crystals or granules; crystalline powder | Passes test | — |
| Chloride (Cl) | ≤0.001% | 0.00020 % | — |
| Excess alkali (as NaOH) | ≤2.5% | 1.4 % | — |
| Heavy metals (as Pb) | ≤0.001% | 0.00014 % | — |
| Insoluble matter | 0.01 % maximum | 0.0023 % | — |
| Iron (Fe) | ≤0.001% | 0.00020 % | — |
| Sulfate (SO4) | ≤0.01% | 0.0015 % | — |
| Nitrogen compounds (as N) | ≤0.001% | 0.00011 % | ACS Reagent Chemicals — Nesslerization after alkaline distillation |
| pH (1% w/v solution @ 25 C) | 11.5 - 12.5 | 12.1 | Potentiometric, calibrated pH meter, CO2-free water |
| phosphorus pentoxide | 18.3 - 20 % | 19.11 % | — |
| sodium oxide | 16 - 19 % | 17.5 % | — |
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.