Silver sulfate solution 10 g/l for COD
| Density | 1.84 g/cm3 |
| HS | 38220000 |
| Storage | store at +15 to +25 °C |
| SDS | available |
| R phrase | R 35 |
| S phrase | S 26-30-36/37/39-45 |
| Odour | odourless |
| Form | liquid |
| Color | colorless to slightly yellowish |
| Solubility in water | soluble ( 20 °C ) |
| Termal decomposition | > 340 °C |
| Assay | 9.8 – 10.2 | g/l |
Silver Sulfate Solution 10 g/L is an aqueous reagent specifically prepared for use in Chemical Oxygen Demand (COD) analysis in pharmaceutical and environmental laboratories. It acts as a catalyst in the oxidation of organic compounds by enhancing the activity of sulfuric acid and dichromate in COD determinations.
🏭⚗️ Production
The solution is produced by dissolving high-purity silver sulfate (Ag₂SO₄) in concentrated sulfuric acid or distilled water, depending on the analytical method required. The solution is thoroughly mixed until complete dissolution and then filtered if necessary. It is typically prepared fresh or stored in amber, tightly sealed glass bottles to protect it from light and contamination.
🔬 Properties
A clear, colorless to slightly gray solution that may exhibit a faint opalescence. It is highly acidic, corrosive, and sensitive to light and organic materials. Silver sulfate provides catalytic silver ions that facilitate oxidation reactions during COD testing. The solution remains stable for extended periods when protected from light and stored under proper conditions.
🧪 Applications
Used primarily as a catalyst in COD analysis to determine the amount of oxidizable organic matter in water and wastewater samples. It is also applicable in certain pharmaceutical and analytical methods where silver ions promote oxidation reactions or serve as a component in reference titration systems.
⚠️ Safety
Corrosive and toxic if ingested or in contact with skin or eyes. Handle with gloves, goggles, and protective clothing inside a fume hood. Avoid contact with organic materials and strong reducing agents. Store in tightly closed amber bottles, in a cool, dry, and well-ventilated area. Dispose of according to hazardous waste and laboratory safety regulations.





