Diethyl phthalate
Diethyl phthalate (CAS: 84-66-2) is an organic compound with the formula C<sub>6</sub>H<sub>4</sub>-1,2-(CO<sub>2</sub>C<sub>2</sub>H<sub>5</sub>)<sub>2</sub>. This ester is a clear, colourless, oily liquid with a slight aromatic odour. With a molecular weight of 222.24 g/mol, it is primarily used as a plasticizer to increase the flexibility and durability of polymers. Its low volatility and good compatibility with various resins make it a versatile industrial chemical.
- Synonyms
- 2-(CO2C2H5)2Phthalic acid diethyl estero-Phthalic acid diethyl esterDiethyl benzene-1,2-dicarboxylate
Plasticizer for Polymers
Diethyl phthalate functions as a plasticizer, enhancing the flexibility and processability of various plastics, particularly cellulose esters. It is incorporated to reduce brittleness and improve the material's overall physical properties.
Solvent and Fixative
Due to its solvent properties, it is used in certain industrial formulations and as a fixative in perfumery to prolong the scent of fragrances. Its ability to dissolve other substances makes it valuable in specific chemical applications.
Chemical Synthesis Intermediate
As an ester, Diethyl phthalate can serve as a building block or intermediate in organic synthesis. It is used in the preparation of more complex organic molecules and specialty chemicals.
| Molecular weight | 222.24 |
|---|---|
| Linear formula | C6H4-1,2-(CO2C2H5)2 |
| Assay | 99.5% |
| Colour | APHA: ≤15 |
| Boiling point | 298-299 °C(lit.) |
| Density | 1.12 g/mL at 25 °C(lit.) |
| Refractive index | n20/D 1.502(lit.) |
| Melting point | −3 °C(lit.) |
| Vapour pressure | 1 mmHg (100 °C) |
| Vapour density | 7.66 (vs air) |
| Autoignition temp | 854 °F |
| Impurities tested | ≤0.18% water |
| Application | Plasticizer. |
| Protective equipment | Eyeshields, Gloves |
|---|---|
| Flash point | 156 °C / 312.8 °F |
| Transport (UN / ADR) | UN 3082 9 / PGIII |
| Water hazard class (WGK, DE) | 2 |
Hazard information is provided for guidance. Always consult the product Safety Data Sheet (SDS), available on request, before handling.
| Expl Lim | 0.75 %, 187 °F |
|---|
Documentation
Every batch ships with a Certificate of Analysis covering assay, identity and purity; the grade is confirmed against your enquiry. Safety Data Sheets and technical data sheets are available on request.
Supply & logistics
Samples for technical evaluation; bulk MOQ by grade and packaging. In-stock material ships in 7–10 working days, worldwide, with full export documentation.
What is Diethyl phthalate used for?
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Diethyl phthalate is primarily used as a plasticizer to improve the flexibility and durability of polymers. It also finds applications as a solvent and fixative in various industrial and cosmetic formulations.
What are the CAS number and chemical formula for Diethyl phthalate?
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The CAS number for Diethyl phthalate is 84-66-2, and its linear formula is C<sub>6</sub>H<sub>4</sub>-1,2-(CO<sub>2</sub>C<sub>2</sub>H<sub>5</sub>)<sub>2</sub>.
What grade and purity does Tech Serve Solutions supply for Diethyl phthalate?
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Tech Serve Solutions supplies Diethyl phthalate with a minimum assay of 99.5%. This product is suitable for research and industrial applications. TSS does not represent this product as USP, BP, EP, pharmacopoeia, or food grade unless explicitly stated in the product documentation.
How should Diethyl phthalate be handled safely?
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When handling Diethyl phthalate, it is recommended to use safety precautions such as wearing eyeshields and gloves to avoid contact. Refer to the Safety Data Sheet (SDS) for comprehensive safety and handling information.
How is Diethyl phthalate packed and shipped?
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Diethyl phthalate is typically packed in suitable containers to ensure safe transport. As per UN 3082 (Class 9, PGIII), specific regulations apply to its shipment and export.
How can I request a quote or sample of Diethyl phthalate?
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To request a quote or a sample of Diethyl phthalate, please contact our sales team through the TSS website or by phone, providing the product name and CAS number (84-66-2).
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