Molecular Formula | C6H2O6 |
Molar Mass | 170.08 |
Density | 1.7636 (rough estimate) |
Melting Point | 248°C (dec.)(lit.) |
Boling Point | 259.67°C (rough estimate) |
BRN | 2047007 |
pKa | 2.62±0.50(Predicted) |
Storage Condition | -20°C |
Refractive Index | 1.7540 (estimate) |
Safety Description | S22 - Do not breathe dust. S24/25 - Avoid contact with skin and eyes. |
WGK Germany | 3 |
Rhodizonic acid, also known as Rhodizonate, is an organic compound that typically exists as a dihydrate. It is a weak acidic compound, soluble in water and alcohol solvents. Rhodizonic acid is commonly used as a colorimetric reagent in chemical experiments, forming a red complex with lead ions for quantitative analysis. It also possesses some toxicity and should be handled and stored with caution.
Properties:
- Rhodizonic acid is a colorless crystalline compound, with the common dihydrate form appearing as yellow or sometimes pink crystals.
- The compound is a stable solid, but can decompose at high temperatures.
- Rhodizonic acid has weak acidic properties, is soluble in water, and can form complexes with metal ions.
Uses:
- Rhodizonic acid is commonly used as a colorimetric reagent, forming colored complexes with metal ions such as lead, iron, and copper for qualitative and quantitative analysis.
- It can also serve as a reagent in reactions for the synthesis of other organic compounds and metal complexes.
Synthesis:
- Rhodizonic acid is typically synthesized by the reaction of nitrobenzaldehyde, and further reduction or oxidation steps can yield different forms of the compound.
Safety:
- Rhodizonic acid is toxic and should be handled with care to avoid inhalation, ingestion, or skin contact.
- Proper protective equipment should be worn when working with the compound to prevent dust or vapor exposure.
- Store in a cool, dry place away from sources of ignition and oxidizing agents.
Please note, the safety information provided for Rhodizonic acid is for reference only. Specific safety procedures should be followed based on laboratory safety protocols.