Dibutyl phthalate
CAS 84-74-2
EC 201-557-4
Formula C16H22O4
MW 278.34 g/mol
Solvents Plastics & PolymersPersonal Care & CosmeticsPrinting & PackagingAutomotive Solvent & CarrierFlavoring & AcidulantUV Protection & StabilizationPlasticizer & SoftenerCatalysisPreservation & Biocide
Description
Dibutyl Phthalate (DBP) is a synthetic plasticizer and solvent with CAS number 84-74-2, also marketed under trade names including Palatinol C, Polycizer DBP, PX 104, and Elaol. It carries no assigned E-code and is identified under EC number 201-557-4 with molecular formula C16H22O4.
In plastics and polymer processing, DBP functions by intercalating between polymer chains to reduce glass transition temperature, increasing flexibility in PVC compounds and cellulose-based coatings. In printing inks and adhesives, it acts as a solvent carrier that controls viscosity and improves film formation during application and drying.
DBP is supplied as a technical-grade liquid and is subject to REACH regulation, where it is listed as a Substance of Very High Concern (SVHC) due to reproductive toxicity classification. Procurement teams should verify authorisation requirements under REACH Annex XIV before sourcing. Standard packaging includes drums and IBC containers, with SDS documentation available upon request.
In plastics and polymer processing, DBP functions by intercalating between polymer chains to reduce glass transition temperature, increasing flexibility in PVC compounds and cellulose-based coatings. In printing inks and adhesives, it acts as a solvent carrier that controls viscosity and improves film formation during application and drying.
DBP is supplied as a technical-grade liquid and is subject to REACH regulation, where it is listed as a Substance of Very High Concern (SVHC) due to reproductive toxicity classification. Procurement teams should verify authorisation requirements under REACH Annex XIV before sourcing. Standard packaging includes drums and IBC containers, with SDS documentation available upon request.
Physical Properties
| Melting Point | -35 °C |
| Boiling Point | 340 °C |
| Density | 1.0465 g/cm³ @ Temp: 20 °C |
| Flash Point | 340 °F |
| Appearance | clear liquid |
| Color | APHA: ≤10 |
| Odor | odorless |
| Form | Liquid |
| Water Solubility | Slightly soluble. 0.0013 g/100 mL |
| Vapor Pressure | 1 mm Hg ( 147 °C) |
| Refractive Index | n 20/D 1.492(lit.) |
| pH | 7 (20°C, 10mg/L) |
| Log P | 4.46-4.57 at 20-30℃ |
Safety & Handling (Learn More)
Danger GHS08 GHS09 GHS07
H
H303H316H317H320H335H360H361H370H372H373H400H411
P
P203P260P261P264P270P271P272P273P280P318P319P321P391P405P501P264+P265P301+P317P302+P352P304+P340P308+P316P332+P317P333+P317P337+P317P362+P364P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 29173100 |
| UN Number | 3082 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 6.1C - Combustible acute toxic Cat.3 toxic compounds or compounds which causing chronic effects |
| WGK (Germany) | 2 |
Other Names
dibutyl benzene-1,2-dicarboxylatenutyl phthalatebutyl phthalaten-butyl phthalateDBPElaolPX 104
Related Products
Raw Materials
Derivatives
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