1,4-benzenedicarboxylic acid, dioctyl ester
dioctyl terephthalate
CAS: 4654-26-6
Molecular Formula: C24H38O4
1,4-benzenedicarboxylic acid, dioctyl ester - Names and Identifiers
| Name | dioctyl terephthalate |
| Synonyms | DOTP Dioctyl terephthalate dioctyl terephthalate DI-N-OCTYLTEREPHTHALATE Terephthalic acid dioctyl ester dioctyl benzene-1,4-dicarboxylate 1,4-Benzenedicarboxylic acid, dioctyl ester 1,4-benzenedicarboxylic acid, dioctyl ester 1,4-Benzenedicarboxylic acid, 1,4-dioctyl ester |
| CAS | 4654-26-6 |
| EINECS | 225-091-6 |
| InChI | InChI=1/C24H38O4/c1-3-5-7-9-11-13-19-27-23(25)21-15-17-22(18-16-21)24(26)28-20-14-12-10-8-6-4-2/h15-18H,3-14,19-20H2,1-2H3 |
1,4-benzenedicarboxylic acid, dioctyl ester - Physico-chemical Properties
| Molecular Formula | C24H38O4 |
| Molar Mass | 390.56 |
| Density | 1.0101 (rough estimate) |
| Melting Point | 41-42 °C |
| Boling Point | 435.74°C (rough estimate) |
| Flash Point | 226.2°C |
| Vapor Presure | 2.27E-07mmHg at 25°C |
| Storage Condition | Sealed in dry,Room Temperature |
| Refractive Index | 1.4460 (estimate) |
| MDL | MFCD00072256 |
| Use | As the main plasticizer (Plasticizer), DOTP has excellent electrical properties, good cold resistance, heat resistance, extraction resistance and high plasticizing efficiency. Suitable as a plasticizer for polyvinyl chloride resin, such as PVC cable materials requiring high insulation. |
1,4-benzenedicarboxylic acid, dioctyl ester - Introduction
dioctyl terephthalate (abbreviated as DOP) is a colorless transparent liquid with low volatility and low solubility. It is a high temperature stable lubricant soluble in organic solvents.
The main use of DOP is as a plastic additive, especially in the production of polyvinyl chloride (PVC). It can improve the plasticity and flexibility of PVC, making it easy to process into various shapes of products. In addition, DOP is used in industries such as cables, synthetic leather, rubber and coatings as plasticizers and plasticizers.
The preparation of DOP is usually synthesized by the esterification reaction of octanol and terephthalic acid. This reaction is typically carried out in the presence of an acidic catalyst such as sulfuric acid.
Regarding safety information, DOP is relatively safe in regular use cases. However, DOP may burn when exposed to high temperatures, open flames, or substances with a low open flame point. Therefore, when handling and storing DOP, avoid contact with fire sources and maintain good ventilation conditions. At the same time, avoid direct contact and inhalation of DOP, so as not to cause irritation or allergic reactions.
The main use of DOP is as a plastic additive, especially in the production of polyvinyl chloride (PVC). It can improve the plasticity and flexibility of PVC, making it easy to process into various shapes of products. In addition, DOP is used in industries such as cables, synthetic leather, rubber and coatings as plasticizers and plasticizers.
The preparation of DOP is usually synthesized by the esterification reaction of octanol and terephthalic acid. This reaction is typically carried out in the presence of an acidic catalyst such as sulfuric acid.
Regarding safety information, DOP is relatively safe in regular use cases. However, DOP may burn when exposed to high temperatures, open flames, or substances with a low open flame point. Therefore, when handling and storing DOP, avoid contact with fire sources and maintain good ventilation conditions. At the same time, avoid direct contact and inhalation of DOP, so as not to cause irritation or allergic reactions.
Last Update：2024-04-09 21:11:58
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