2,4-二氯-3,5-二硝基苯甲酸
2,4-Dichloro-3,5-dinitrobenzoic acid
CAS: 52729-03-0
Molecular Formula: C7H2Cl2N2O6
2,4-二氯-3,5-二硝基苯甲酸 - Names and Identifiers
| Name | 2,4-Dichloro-3,5-dinitrobenzoic acid |
| Synonyms | LABOTEST-BB LT00159518 2,4-dichloro-3,5-dinitrobenzoate 2,4-DICHLORO-3,5-DINITROBENZOIC ACID 2,4-Dichloro-3,5-dinitrobenzoic acid Benzoic acid, 2,4-dichloro-3,5-dinitro- |
| CAS | 52729-03-0 |
| EINECS | 258-136-3 |
| InChI | InChI=1/C7H2Cl2N2O6/c8-4-2(7(12)13)1-3(10(14)15)5(9)6(4)11(16)17/h1H,(H,12,13)/p-1 |
2,4-二氯-3,5-二硝基苯甲酸 - Physico-chemical Properties
| Molecular Formula | C7H2Cl2N2O6 |
| Molar Mass | 281.01 |
| Density | 2.1688 (rough estimate) |
| Melting Point | 212-213°C(lit.) |
| Boling Point | 433.7±45.0 °C(Predicted) |
| Flash Point | 216.1°C |
| Vapor Presure | 2.72E-08mmHg at 25°C |
| pKa | 1.42±0.12(Predicted) |
| Refractive Index | 1.7350 (estimate) |
2,4-二氯-3,5-二硝基苯甲酸 - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| Risk Codes | 36/37/38 - Irritating to eyes, respiratory system and skin. |
| Safety Description | S26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S37/39 - Wear suitable gloves and eye/face protection |
| WGK Germany | 3 |
2,4-二氯-3,5-二硝基苯甲酸 - Introduction
2,4-Dichloro-3,5-dinitrobenzoic acid is an organic compound with the chemical formula C7H3Cl2N3O6. The following is a description of the nature, use, preparation and safety information of the substance:
Nature:
-Appearance: 2,4-Dichloro-3,5-dinitrobenzoic acid is a yellow crystalline solid.
-Melting point: about 205-210 degrees Celsius.
-Solubility: insoluble in water, soluble in alcohol and chlorinated solvents.
Use:
- 2,4-Dichloro-3,5-dinitrobenzoic acid is mainly used as a chemical reagent and intermediate, and has important applications in organic synthesis. It can be used to synthesize compounds such as dyes, drugs and pesticides.
-It can also be used as an indicator or oxidant.
Preparation Method:
- 2,4-Dichloro-3,5-dinitrobenzoic acid can be obtained by the chlorination of p-nitrobenzoic acid. First, p-nitrobenzoic acid reacts with ferrous chloride to give the ferric salt of 2,4-Dichloro-3,5-dinitrobenzoic acid. The iron salt is then reacted with hydrochloric acid to give 2,4-Dichloro-3,5-dinitrobenzoic acid.
Safety Information:
- 2,4-Dichloro-3,5-dinitrobenzoic acid is a harmful chemical substance that is irritating and corrosive. Contact with skin, eyes or mucous membranes should be avoided.
-When using, should wear protective gloves, safety glasses and protective mask.
-If ingested or inhaled, seek medical attention immediately.
-Should be stored and handled in a well-ventilated place, away from fire and flammable materials.
-When disposing of waste, it should be disposed of in accordance with local regulations.
Nature:
-Appearance: 2,4-Dichloro-3,5-dinitrobenzoic acid is a yellow crystalline solid.
-Melting point: about 205-210 degrees Celsius.
-Solubility: insoluble in water, soluble in alcohol and chlorinated solvents.
Use:
- 2,4-Dichloro-3,5-dinitrobenzoic acid is mainly used as a chemical reagent and intermediate, and has important applications in organic synthesis. It can be used to synthesize compounds such as dyes, drugs and pesticides.
-It can also be used as an indicator or oxidant.
Preparation Method:
- 2,4-Dichloro-3,5-dinitrobenzoic acid can be obtained by the chlorination of p-nitrobenzoic acid. First, p-nitrobenzoic acid reacts with ferrous chloride to give the ferric salt of 2,4-Dichloro-3,5-dinitrobenzoic acid. The iron salt is then reacted with hydrochloric acid to give 2,4-Dichloro-3,5-dinitrobenzoic acid.
Safety Information:
- 2,4-Dichloro-3,5-dinitrobenzoic acid is a harmful chemical substance that is irritating and corrosive. Contact with skin, eyes or mucous membranes should be avoided.
-When using, should wear protective gloves, safety glasses and protective mask.
-If ingested or inhaled, seek medical attention immediately.
-Should be stored and handled in a well-ventilated place, away from fire and flammable materials.
-When disposing of waste, it should be disposed of in accordance with local regulations.
Last Update：2024-04-09 21:01:54
