ISO 9001:2015
| Product Name: | 4-Hydroxybenzenesulfonic acid | Catalogue Number: | GR-4765-75 |
| Batch Size: | 2000KG | Lot Number: | 20240606 |
| CAS Number: | 98-67-9 | Production Date: | |
| Molecular Formula: | C6H6O4S | Report Date: | 2024-06-04 |
| Molecular Weight: | 174.18 | Expiry Date: | |
| Storage: | Room temperature, Protected from light and Sealed |
| Test Items | Specifieation | Results |
| Appearance | Brown liquid | Conforms |
| Assay | ≥75.0% | 75.18% |
| Free acid | ≤2.0% | 0.71% |
| Fe | ≤30 ppm | 12 ppm |
| Sulfur dioxide | ≤30 ppm | 19 ppm |
| Free phenol | ≤0.5% | 0.04% |
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Prepared by: |
Reviewed by: |
Aproved by General manager: |
| Date: | Date: | Date: |
