DBE - Names and Identifiers
DBE - Physico-chemical Properties
| Use | Divalent esters are widely used in automotive coatings, color steel plate coatings, can coatings, enameled wires and household electrical materials, furniture wood coatings and other industries. |
DBE - Introduction
Divalent acid esters are a class of compounds that contain two ester groups (-O-CO-R) in the molecule. These compounds have the following properties:
1. melting point and boiling point is higher: due to the Divalent acid ester molecules are larger, with higher molecular mass and more intermolecular forces, resulting in higher melting point and boiling point.
2. Low polarity: Divalent the ester group in acid ester has no charge, only non-polar C- O and C = O bonds, their solubility in solvents is small.
Divalent acid ester has a wide range of uses in industrial production, mainly including the following aspects:
1. Plasticizer: Some Divalent acid ester can be added to plastics as plasticizers to improve the flexibility and processability of plastics.
2. solvent: due to the low polarity of Divalent acid ester, it can be used as a solvent for organic synthesis, especially suitable for dissolving non-polar substances.
3. Lubricant: Some Divalent acid ester can play a role in lubricating oil and reducing friction, and is used for the maintenance and lubrication of mechanical equipment.
4. preservative: because some Divalent acid ester has antibacterial and antiseptic properties, it can be used to prevent the growth of microorganisms and corruption.
There are many methods for preparing Divalent acid ester. Common methods include ester exchange reaction and acid chlorination reaction. Transesterification is the reaction of one acid ester with another to exchange ester groups to produce Divalent acid ester. Acid chlorination is carried out by reacting an acid with an acid chlorinating agent to produce an acid chloride, which is then reacted with an alcohol to produce a Divalent acid ester.
When using and handling Divalent acid ester, you need to pay attention to some safety matters:
1. Prevent contact with skin and inhalation: Divalent acid ester may cause irritation to skin and respiratory tract, you should wear appropriate protective equipment to avoid direct contact and inhalation.
2. avoid contact with open flame and high temperature: Divalent acid ester has a high boiling point, which may cause fire or explosion, avoid contact with open flame and high temperature.
3. Sealed during storage and transportation: The Divalent acid ester should be stored and transported in a sealed container to avoid contact with oxygen in the air to prevent oxidation and degradation.
In general, Divalent acid ester is a useful compound that has a variety of uses and requires compliance with appropriate safety procedures when used.
Last Update：2024-04-10 22:39:43