ACS Reagent · ≥98% assay
Sodium Sulfide Nonahydrate ACS Reagent
Na₂S · 9H₂O — laboratory & analytical grade · CAS 1313-84-4
ACS Reagent Grade Sodium Sulfide Nonahydrate for analytical chemistry, research and quality-control labs. Conforms to American Chemical Society reagent specification with ≥98% assay, low iron and full batch certificate of analysis.
ACS reagent specification
ACS-conformant
Assay (Na₂S) ≥ 98%, iron ≤ 0.001%, chloride ≤ 0.005%, insoluble matter ≤ 0.01%.
Lab packaging
500 g and 1 kg amber glass bottles, double-sealed; 25 kg HDPE drums for bulk research lots.
Full documentation
Batch-wise COA, MSDS / SDS, TDS and traceability for audited GLP/GMP labs.
| Grade | ACS Reagent / Laboratory |
| Assay (Na₂S) | ≥ 98% |
| Iron (Fe) | ≤ 0.001% |
| Chloride (Cl⁻) | ≤ 0.005% |
| Heavy metals (as Pb) | ≤ 0.001% |
| Insoluble matter | ≤ 0.01% |
| pH (5% solution) | 12.5 – 13.5 |
| CAS Number | 1313-84-4 |
| Pack sizes | 500 g · 1 kg · 25 kg drum |