CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Diphenylmethane-4,4-diisocyanate is a light yellow colored solid. It is not soluble in water. It may be toxic by ingestion, inhalation, or skin absorption. If in a solution it may or may not burn depending on the nature of the material and/or the solvent. It is used to make plastics. |
|---|---|
| Color/Form | Light-yellow, fused solid |
| Odor | Odorless |
| Boiling Point | 381 to 390 °F at 5 mmHg (NTP, 1992) |
| Melting Point | 99 °F (NTP, 1992) |
| Flash Point | 425 °F (NTP, 1992) |
| Solubility | Insoluble (NTP, 1992) |
| Density | 1.2 at 68 °F (USCG, 1999) - Denser than water; will sink |
| Vapor Density | Relative vapor density (air = 1): 8.6 |
| Vapor Pressure | 5e-06 mmHg at 77 °F (NIOSH, 2023) |
| Autoignition Temperature | 240 °C |
| Decomposition | When heated to decomposition it emits toxic fumes of /nitrogen oxides and sulfur oxides/. |
| Odor Threshold | Odor Threshold Low: 0.39 [mmHg] Odor threshold from AIHA |
| Refractive Index | Index of refraction: 1.5906 at 50 °C/D |
| Other Experimental Properties | VAPOR PRESSURE: 0.0075 MM HG @ 94 °C /TECHNICAL PRODUCT/ |
| Chemical Classes | Plastics & Rubber -> Diisocyanates |
COMPUTED DESCRIPTORS
| Molecular Weight | 250.25 g/mol |
|---|---|
| XLogP3 | 5.4 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 4 |
| Exact Mass | 250.074227566 g/mol |
| Monoisotopic Mass | 250.074227566 g/mol |
| Topological Polar Surface Area | 58.9 Ų |
| Heavy Atom Count | 19 |
| Formal Charge | 0 |
| Complexity | 332 |
| 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
Diphenylmethane-4,4-diisocyanate is a light yellow colored solid. It is not soluble in water. It may be toxic by ingestion, inhalation, or skin absorption. If in a solution it may or may not burn depending on the nature of the material and/or the solvent. It is used to make plastics.