4,4’-Diaminodiphenylmethane , Analysis standard , 101-77-9
Synonym(s):
4,4′-Methylenedianiline;DAPM;MDA
CAS NO.：101-77-9
Empirical Formula: C13H14N2
Molecular Weight: 198.26
MDL number: MFCD00007914
EINECS: 202-974-4
PRODUCT Properties
| Melting point: | 89-91 °C(lit.) |
| Boiling point: | 242 °C2 mm Hg(lit.) |
| Density | 1.15 |
| vapor pressure | 0Pa at 25℃ |
| refractive index | 1.5014 (estimate) |
| Flash point: | 430 °F |
| solubility | water: soluble |
| pka | 5.32±0.25(Predicted) |
| color | White to Light yellow |
| Water Solubility | Slightly soluble. <0.1 g/100 mL at 19 ºC |
| Merck | 14,2980 |
| BRN | 474706 |
| Exposure limits | ACGIH: TWA 0.1 ppm (Skin) OSHA: STEL 100 ppb |
| LogP | 1.55 at 25℃ |
Description and Uses
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. 4,4'-Methylenedianiline is also a by-product of azo dyes. It is also possibly formed by hydrolysis of diphenylmethane-4A'-diisocyanate.
4,4'-methylenedianiline be used as organic intermediates. Mainly used for the synthesis of polyimide and as curing agent of epoxy resin.
Safety
| Symbol(GHS) |    GHS06,GHS08,GHS09 |
| Signal word | Danger |
| Hazard statements | H301-H317-H341-H350-H370-H373-H410 |
| Precautionary statements | P202-P260-P273-P280-P301+P310-P302+P352 |
| Hazard Codes | T,N |
| Risk Statements | 45-39/23/24/25-43-48/20/21/22-51/53-68 |
| Safety Statements | 53-45-61 |
| RIDADR | UN 2651 6.1/PG 3 |
| WGK Germany | 3 |
| RTECS | BY5425000 |
| TSCA | Yes |
| HazardClass | 6.1 |
| PackingGroup | III |
| HS Code | 29215900 |
| Toxicity | LD50 oral in rabbit: 620mg/kg |
