What is DEP Oil?
DEP Oil, commercially known as Diethyl Phthalate, is a colourless, oily liquid widely used in the detergent and soap industry as a fragrance carrier, fixative, and dilutant. Within the detergent trade, "DEP Oil" specifically refers to its role as a perfume oil base — helping to dilute and disperse concentrated fragrance compounds uniformly throughout bar soap, detergent powder, and liquid cleaning formulations, while also acting as a fixative that slows fragrance evaporation, extending the lasting scent impression of the finished product.
Polychem Industries supplies DEP Oil to detergent manufacturers, soap producers, and personal care formulators across India and internationally. Its excellent solvency for fragrance and aroma compounds, combined with its fixative properties and cost efficiency, make it a standard raw material in the formulation and dilution of perfume compounds used throughout the household and personal care cleaning products industry.
Available Grades
| Grade | Form | Purity | Standard | Applications |
|---|---|---|---|---|
| Detergent / Industrial Grade | Colourless oily liquid | 99%+ (Industrial / Detergent Grade) | Industrial / Detergent | Detergent perfume carrier, soap fragrance fixative, solvent |
Applications & Uses
Soap & Detergent Fragrance Carrier
The primary application in this industry context. DEP Oil is used to dilute concentrated fragrance and perfume compounds before incorporation into bar soap, detergent powder, and liquid cleaning products, ensuring uniform fragrance dispersion throughout the batch.
Fragrance Fixative
Used as a fixative in perfume and fragrance compound formulations, helping slow the evaporation rate of more volatile fragrance components, extending the perceived scent life of the finished soap or detergent product.
Personal Care Product Formulations
Used in certain personal care and cosmetic formulations as a solvent and fragrance carrier, helping achieve uniform scent distribution and contributing to the sensory profile of the finished product.
Air Freshener & Household Fragrance Products
Used as a solvent and carrier in air freshener and household fragrance formulations, helping disperse and stabilise fragrance compounds in these consumer products.
Nitrocellulose Lacquers & Coatings
Used as a plasticiser and solvent in certain nitrocellulose-based lacquer and coating formulations, contributing to flexibility and film-forming properties.
Industrial Solvent Applications
Used as a general-purpose solvent in various industrial chemical formulations requiring its specific solvency and dilution properties.
Technical Specifications
DEP Oil — Key Properties
Why Source DEP Oil from Polychem Industries?
- Detergent / Industrial grade with full quality documentation
- Excellent solvency and dilution performance for fragrance compounds
- Certificate of Analysis and MSDS provided on request
- Reliable bulk supply for soap and detergent manufacturers
- Competitive pricing with consistent year-round availability
- Export documentation experience for international shipments
