1. Product Identification
Product Name: Diethyl Phthalate
Synonyms: Phthalic acid diethyl ester, DEP
CAS‑No：84‑66‑2
EC / EINECS：201‑550‑6
Molecular Formula：C12H14O4
Molecular Weight：222.24 g/mol
Grade: Industrial Grade / Perfume Grade
Typical Assay: ≥99.0% GC
Appearance: Colorless clear oily liquid, slight aromatic odor
2. Typical Physical‑Chemical Properties
| Parameter | Value | Test Condition |
|---|---|---|
| Density | 1.118‑1.122 g/cm³ | 25 ℃ |
| Refractive Index nD | 1.499‑1.502 | 20 ℃ |
| Melting Point | ‑3 ℃ | lit. |
| Boiling Point | 298‑299 ℃ | 760 mmHgSigma-Aldr... |
| Flash Point (closed cup) | ≥156 ℃ | CC |
| Viscosity | ~13 mPa·s | 20 ℃ |
| Water Solubility | ~1000 mg/L | 25 ℃, slightly soluble |
| Solubility | Miscible with ethanol, ether, acetone, benzene; practically insoluble in water | — |
| Vapor Pressure | 1 mmHg | 100 ℃Sigma-Aldr... |
| APHA Color | ≤30 | — |
3. Quality Specification (Industrial Grade 99%)
| Item | Specification |
|---|---|
| Purity (GC) | ≥99.0 % |
| Moisture | ≤0.10 % |
| Acidity (as phthalic acid) | ≤0.02 % |
| Color (APHA) | ≤30 |
| Freezing point | ≤‑2.0 ℃ |
4. Main Applications
Plasticizer for cellulose acetate, cellulose nitrate, vinyl resins, coatings, adhesives, rubber formulations
Perfume fixative & diluent in fragrance & cosmetic industry
Gas‑chromatography stationary liquid, solvent for special synthesis
Intermediate for insect‑repellent formulations
5. Storage & Handling
Store in cool, dry, well‑ventilated warehouse; temperature below 30 ℃.
Keep away from heat, open flame, strong oxidizing agents.
Container tightly closed; avoid direct sunlight.Avoid contact with skin and eyes; wear PPE during operation.
6. Packaging
200 kg iron drum / IBC 1000L tank container
Sealed packing, light loading & unloading.
7. Transport Information
UN No.: UN 3082
Hazard Class: 9 (Environmentally hazardous substance)
Packing Group: III
Disclaimer：This TDS is for reference only. Actual values refer to batch‑specific COA and SDS.
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