Potassium dichromate solution 0.02 N for COD
| Density | ~1.00 g/Cm3 (20°C) |
| HS Code | 28415000 |
| Storage | Storage at +15 to +25 °C |
| SDS | available |
| R phrase | R 45-46-E20-42/43 |
| S phrase | S 53-24-37-45 |
| Odour | odourless |
| Form | liquid |
| Color | orange |
| Solubility in water | soluble (20°C) |
| C (K2Cr2O7) | 0.020 mol/l | ± 0.1 | % |
| Titr (20 °C ) | 1.000 |
Potassium Dichromate Solution 0.02 N for COD is a standardized aqueous solution containing potassium dichromate (K₂Cr₂O₇) at a normality of 0.02 N, specifically designed for chemical oxygen demand (COD) analysis in environmental and pharmaceutical laboratories.
🏭⚗️ Production
Potassium Dichromate Solution 0.02 N for COD is prepared by dissolving high-purity potassium dichromate in distilled or deionized water and carefully standardized to achieve a normality of 0.02 N at 25°C. The solution is stored in tightly sealed, chemically compatible containers to prevent contamination and maintain long-term stability.
🔬 Properties
The solution is a clear to orange-red liquid, highly soluble in water. It is a strong oxidizing solution and remains stable under normal laboratory conditions. The solution should be protected from light, organic materials, and reducing agents to preserve its concentration and oxidizing strength.
🧪 Applications
In laboratory settings, Potassium Dichromate Solution 0.02 N is primarily used for COD determination, which measures the amount of oxygen required to oxidize organic compounds in water and wastewater samples. In pharmaceutical and environmental applications, it is used for assessing organic load in water, ensuring compliance with quality standards, and monitoring water treatment processes.
⚠️ Safety
The solution is hazardous, corrosive, and a strong oxidizer. Contact with skin or eyes should be rinsed immediately with plenty of water, and gloves, goggles, and lab coats should be worn during handling. The solution should be stored in tightly sealed containers in a cool, dry place, away from organic materials, reducing agents, and heat. Disposal must follow laboratory safety protocols and local environmental regulations.
