3-METHYLAMINO-BENZOIC ACID - Names and Identifiers
3-METHYLAMINO-BENZOIC ACID - Physico-chemical Properties
Molecular Formula | C8H9NO2
|
Molar Mass | 151.16 |
Density | 1.2023 (rough estimate) |
Melting Point | 122-126 °C |
Boling Point | 273.17°C (rough estimate) |
Flash Point | 158.2°C |
Vapor Presure | 3.95E-05mmHg at 25°C |
pKa | 5.10(at 25℃) |
Storage Condition | 2-8°C |
Refractive Index | 1.5810 (estimate) |
3-METHYLAMINO-BENZOIC ACID - Risk and Safety
Hazard Symbols | Xn - Harmful
|
Risk Codes | 22 - Harmful if swallowed
|
WGK Germany | 3 |
3-METHYLAMINO-BENZOIC ACID - Introduction
3-(methylamino)benzoic acid is an organic compound with the chemical formula C8H9NO2. The following is a description of its nature, use, preparation and safety information:
Nature:
-Appearance: 3-(methylamino)benzoic acid is a colorless or white crystalline powder.
-Solubility: It has low solubility in water and can be dissolved in alcohols and organic solvents.
-Melting point: Its melting point is about 195-197 degrees Celsius.
- pH value: In aqueous solution, the pH value of 3-(methylamino)benzoic acid is about 4-6.
Use:
-Chemical synthesis: 3-(methylamino)benzoic acid is commonly used as an intermediate in organic synthesis and can be used to prepare other compounds, such as dyes, drugs and pesticides.
- pH adjuster: Because of its acidity in aqueous solution, 3-(methylamino)benzoic acid can be used as a pH adjuster.
-Research and experimentation: It is also commonly used in chemical research and experimentation.
Preparation Method:
The preparation method of 3-(methylamino)benzoic acid can be obtained by the reaction of benzoic acid and dimethylamine. Specific steps include:
1. Benzoic acid is reacted with an excess of dimethylamine in a suitable solvent.
2. The reaction is usually carried out under neutral or slightly acidic conditions and heated to an appropriate temperature.
3. After the reaction is completed, the product can be obtained by crystallization or other extraction methods.
Safety Information:
- 3-(methylamino)benzoic acid powder may cause irritation to the skin, eyes and respiratory tract, so wear appropriate protective equipment, such as gloves, goggles and protective masks.
-Care should be taken to avoid inhalation of dust or solution contact with the skin, such as inadvertent contact, timely use plenty of water to rinse the affected area.
-Avoid situations such as smoke, flame and high temperature that may cause fire or explosion during operation.
- 3-(methylamino)benzoic acid should be stored in a dry, cool, well-ventilated place to avoid contact with oxidants and other incompatibilities.
Last Update:2024-04-09 21:04:16