CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Di(2-ethylhexyl) phthalate is a colorless to pale yellow oily liquid. Nearly odorless. (USCG, 1999) |
|---|---|
| Color/Form | Liquid |
| Odor | Slight odor |
| Boiling Point | 723 °F at 760 mmHg (NTP, 1992) |
| Melting Point | -58 °F (NTP, 1992) |
| Flash Point | 405 °F (NTP, 1992) |
| Solubility | less than 0.1 mg/mL at 72 °F (NTP, 1992) |
| Density | 0.98 at 77 °F (USCG, 1999) - Less dense than water; will float |
| Vapor Density | 13.45 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1.32 mmHg at 392 °F (NTP, 1992) |
| LogP | log Kow = 7.60 |
| Stability/Shelf Life | Stable |
| Autoignition Temperature | 735 °F (NTP, 1992) |
| Decomposition | When heated to decomp it emits acrid smoke. |
| Viscosity | 22 cSt at 20 °C; 386 cSt at 0 °C; 5 cSt at 100 °C |
| Heat of Combustion | -15,130 BTU/LB= -8410 CAL/G= -352X10+5 JOULES/KG |
| Surface Tension | LIQUID SURFACE TENSION: EST 15 DYNES/CM= 0.015 N/M @ 20 °C LIQUID-WATER INTERFACIAL TENSION: EST 30 DYNES/CM= 0.03 N/M @ 20 °C. |
| Refractive Index | Index of refraction: 1.4853 at 20 °C/D |
| Collision Cross Section | 212.2 Ų [M+H]+ [CCS Type: DT, Method: single field calibrated with ESI Low Concentration Tuning Mix (Agilent)] |
| Kovats Retention Index | 2499.4 2499 2499 2505 2492.6 2507 2509 2488 2498 2516.7 2504 2505 2506 2480 2505 2506 2509 2506 2507 418.6 418.7 406.14 406.15 |
| Other Experimental Properties | 1 PPM= APPROX 15.94 MG/CU M |
| Chemical Classes | Plastics & Rubber -> Phthalate Esters |
COMPUTED DESCRIPTORS
| Molecular Weight | 390.6 g/mol |
|---|---|
| XLogP3 | 7.4 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 16 |
| Exact Mass | 390.27700969 g/mol |
| Monoisotopic Mass | 390.27700969 g/mol |
| Topological Polar Surface Area | 52.6 Ų |
| Heavy Atom Count | 28 |
| Formal Charge | 0 |
| Complexity | 394 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 2 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Di(2-ethylhexyl) phthlate (DEHP) is a manufactured chemical that is commonly added to plastics to make them flexible. DEHP is a colorless liquid with almost no odor. DEHP is present in plastic products such as wall coverings, tablecloths, floor tiles, furniture upholstery, shower curtains, garden hoses, swimming pool liners, rainwear, baby pants, dolls, some toys, shoes, automobile upholstery and tops, packaging film and sheets, sheathing for wire and cable, medical tubing, and blood storage bags.