Industrial chemicals · Taylor, TXCertificate of Analysis
Sample Certificate of Analysis
Phosphoric Acid 75 ACS Grade
ACS Grade · 75%
Sample COA. Contact Alliance Chemical with your lot number to request a lot-specific COA.
- CAS number
- 7664-38-2
- Structure
Structure · PubChem - Grade
- ACS Grade · 75%
- Assay specification
- 74.5 - 75.5 %
- Answer summary
Sample specification reference for Phosphoric Acid 75 ACS 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 (H3PO4) | 74.5 - 75.5 % | 75.07 % | — |
| Insoluble matter | 0.00088% max | 0.000076 % | — |
| Arsenic (As) | 0.88 ppm max | 0.026 ppm | — |
| Calcium (Ca) | 0.0018% max | 0.00021 % | — |
| Chloride (Cl) | 2.7 ppm max | 0.34 ppm | — |
| Heavy metals (as Pb) | 0.00088 % max | 0.000056 % | — |
| Iron (Fe) | 0.0026% max | 0.000073 % | — |
| Magnesium (Mg) | 0.0018% max | 0.00018 % | — |
| Nitrate (NO3) | 4.5 ppm max | 0.69 ppm | — |
| KMnO4 reducible matter (as O) | 0.00088% max | 0.000035 % | — |
| Sodium (Na) | 0.022% max | 0.0022 % | — |
| Sulfate (SO4) | 0.0027% max | 0.00059 % | — |
| Volatile acids (as CH3COOH) | 0.00088% max | 0.00027 % | — |
| Color (APHA) | Max 10 | 5 | — |
| Reducing substances | Passes Test | Passes test | — |
| Specific gravity (20 °C) | 1.574 - 1.584 | 1.580 | — |
| Composition | 75 % phosphoric acid in deionized water, by weight | Conforms | By formulation; confirmed by specific gravity |
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.