101-77-9
Product Name:
4,4'-Methylenedianiline
Formula:
C13H14N2
Synonyms:
4,4′-Methylenedianiline;DAPM;MDA
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | 4,4'-diaminodiphenylmethane appears as a tan flake or lump solid with a faint fishlike odor. May be toxic by inhalation or ingestion, and may be irritating to skin. Insoluble in water. |
|---|---|
| Color/Form | Crystals from water or benzene |
| Odor | Faint, amine-like odor |
| Boiling Point | 748 to 750 °F at 768 mmHg (NTP, 1992) |
| Melting Point | 197 to 198 °F (NTP, 1992) |
| Flash Point | 430 °F (NTP, 1992) |
| Solubility | less than 1 mg/mL at 66 °F (NTP, 1992) |
| Density | 1.15 at 77 °F (NTP, 1992) - Denser than water; will sink |
| Vapor Density | 6.8 (NTP, 1992) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 1e-07 mmHg at 77 °F (calculated) (NTP, 1992) |
| LogP | log Kow = 1.59 |
| Stability/Shelf Life | OXIDIZES IN AIR; PALE YELLOW CRYSTALS TURN DARK COLOR WHEN EXPOSED TO AIR. |
| Decomposition | When heated to decomposition it emits highly toxic fumes of aniline and NOx. |
| Viscosity | 8.3 cP at 100 °C |
| Heat of Vaporization | 95.4 kJ/mol |
| pH | Weak base |
| Ionization Potential | 10.70 eV |
| Other Experimental Properties | Molar heat capacity: 270.9 J/mol-K |
| Chemical Classes | Nitrogen Compounds -> Amines, Polyaromatic |
SAFETY INFORMATION
| Signal word | Danger |
|---|---|
| Pictogram(s) |
 Skull and Crossbones Acute Toxicity GHS06  Health Hazard GHS08  Environment GHS09 |
| GHS Hazard Statements |
H301:Acute toxicity,oral H317:Sensitisation, Skin H341:Germ cell mutagenicity H350:Carcinogenicity H370:Specific target organ toxicity, single exposure H373:Specific target organ toxicity, repeated exposure H410:Hazardous to the aquatic environment, long-term hazard |
| Precautionary Statement Codes |
P202:Do not handle until all safety precautions have been read and understood. P260:Do not breathe dust/fume/gas/mist/vapours/spray. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P302+P352:IF ON SKIN: wash with plenty of soap and water. |
COMPUTED DESCRIPTORS
| Molecular Weight | 198.26 g/mol |
|---|---|
| XLogP3 | 1.6 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 2 |
| Exact Mass | 198.115698455 g/mol |
| Monoisotopic Mass | 198.115698455 g/mol |
| Topological Polar Surface Area | 52 Ų |
| Heavy Atom Count | 15 |
| Formal Charge | 0 |
| Complexity | 157 |
| 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
4,4'-Methylenedianiline is an industrial chemical that is not known to occur naturally. It is also commonly known as diaminodiphenylmethane or MDA. It occurs as a colorless to pale yellow solid and has a faint odor. 4,4'-Methylenedianiline is used mainly for making polyurethane foams, which have a variety of uses, such as insulating materials in mailing containers. It is also used for making coating materials, glues, Spandex® fiber, dyes, and rubber.