methanediol,diacetate
methylene diacetate
CAS: 628-51-3
Molecular Formula: C5H8O4
methanediol,diacetate - Names and Identifiers
methanediol,diacetate - Physico-chemical Properties
| Molecular Formula | C5H8O4 |
| Molar Mass | 132.11 |
| Density | 1.128g/mLat 25°C(lit.) |
| Melting Point | −23°C(lit.) |
| Boling Point | 164-165°C(lit.) |
| Flash Point | 165°F |
| Vapor Presure | 1.96mmHg at 25°C |
| Storage Condition | under inert gas (nitrogen or Argon) at 2-8°C |
| Refractive Index | n20/D 1.405(lit.) |
methanediol,diacetate - Risk and Safety
| Hazard Symbols | Xi - Irritant |
| WGK Germany | 3 |
| RTECS | AI9075000 |
methanediol,diacetate - Introduction
methylene diacetate is a colorless liquid with a fragrance. It is an esterification product made by the reaction of acetic acid and methanol. At room temperature, the methylene diacetate is stable, but easily reacts with oxygen.
methylene diacetate has good solubility and can be dissolved in water and many organic solvents. It can be used as a solvent, bleaching agent and plasticizer. In chemical synthesis, methylene diacetate are commonly used in organic synthesis reactions, pharmaceutical formulations, and coatings. It is also used as a stabilizer for coatings and paints to extend their service life.
The method for preparing methylene diacetate includes an esterification reaction of acetic acid and methanol. The reaction can be carried out by acid catalysis, base catalysis or catalysis by esterifying enzymes. Among them, acid catalysis is a common synthesis method, which can be carried out under neutral or slightly alkaline conditions.
When using methylene diacetate, you need to pay attention to the following safety information: It is irritating and corrosive, and may cause irritation and damage to the eyes, skin and respiratory system. Therefore, appropriate protective equipment such as goggles, gloves and respiratory protection should be worn during operation. Avoid direct contact with skin and eyes, rinse if necessary. At the same time, it is necessary to ensure that it is used in a well-ventilated environment and avoid inhaling its vapor. If taken by mistake or inhaled by mistake, seek medical attention immediately.
methylene diacetate has good solubility and can be dissolved in water and many organic solvents. It can be used as a solvent, bleaching agent and plasticizer. In chemical synthesis, methylene diacetate are commonly used in organic synthesis reactions, pharmaceutical formulations, and coatings. It is also used as a stabilizer for coatings and paints to extend their service life.
The method for preparing methylene diacetate includes an esterification reaction of acetic acid and methanol. The reaction can be carried out by acid catalysis, base catalysis or catalysis by esterifying enzymes. Among them, acid catalysis is a common synthesis method, which can be carried out under neutral or slightly alkaline conditions.
When using methylene diacetate, you need to pay attention to the following safety information: It is irritating and corrosive, and may cause irritation and damage to the eyes, skin and respiratory system. Therefore, appropriate protective equipment such as goggles, gloves and respiratory protection should be worn during operation. Avoid direct contact with skin and eyes, rinse if necessary. At the same time, it is necessary to ensure that it is used in a well-ventilated environment and avoid inhaling its vapor. If taken by mistake or inhaled by mistake, seek medical attention immediately.
Last Update：2024-04-09 21:11:58
