CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Octachlorodibenzo-p-dioxin appears as colorless crystals or white crystalline solid. (NTP, 1992) |
|---|---|
| Color/Form | Colorless crystals or needles from trichlorobenzene |
| Melting Point | 626 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 68 °F (NTP, 1992) |
| Vapor Pressure | 8.25X10-13 mm Hg @ 25 °C |
| LogP | log Kow = 8.20 |
| Henry's Law Constant | Henry's Law constant = 6.7X10-6 atm-cu m/mole @ 25 °C /Estimated/ |
| Stability/Shelf Life | Extremely stable, even on heating to 700 °C. |
| Decomposition | When heated to decomposition it emits toxic fumes of /hydrogen chloride/. |
| Kovats Retention Index | 3150 |
| Other Experimental Properties | /Toxic equivalency factors (TEF), indicate the toxicity of a compound relative to 2,3,7,8-tetrachlorodibenzo-p-dioxin, which itself has been assigned a TEF of 1.0. Concentration data for polychlorinated dibenzo-p-dioxins are frequently reported in units of toxic equivalency which are equal to the measured concentration of substance multiplied by its TEF./ The TEF for octachlorodibenzo-p-dioxin is 0.001. |
| Chemical Classes | Other Classes -> Halogenated Polyaromatics |
COMPUTED DESCRIPTORS
| Molecular Weight | 459.7 g/mol |
|---|---|
| XLogP3 | 8.1 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 459.734751 g/mol |
| Monoisotopic Mass | 455.740651 g/mol |
| Topological Polar Surface Area | 18.5 Ų |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 354 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| Covalently-Bonded Unit Count | 1 |
| Compound Is Canonicalized | Yes |
PRODUCT INTRODUCTION
description
Octachlorodibenzo-p-dioxin appears as colorless crystals or white crystalline solid. (NTP, 1992)