Diethyltoluenediamine(DETDA)
Product Name:Diethyltoluenediamine(DETDA)
Synonyms:Diethyl methyl benzene diamine
CAS NO：68479-98-1
EINECS NO：270-877-4
UN NO：3082
Transport hazard Class(es): 9
Packing group,if applicable：III
Similar products: U.S Albemarle (Ethacure 100), Swiss Lonza group (DETDA 80), German Nitroil (ADA 80 PCAmine)
1.Physical and chemical propertie：
Light yellow to amber transparent liquid, slightly soluble in water, soluble in alcohol,ether, ketone and other poiar organic solvents, with polyether, polyester polyol compatibility is good.
| Property | Result |
| Molecular formula | C11H18N2 |
| Structural formula |  |
| Molecular weight | 178.28 |
| Melting point/freezing point°C | -9 |
| Initial boiling point°C | 308(1013 hpa) |
| Self-lgnltlon temperature°C | 420(1013 hpa) |
| Relative densityg/cm3 at 25°C | 1.02 |
| Flash point°C | 135 |
| Vapour pressure | 0.000971 pa(25°C) 0.00391 pa(35°C) |
| Isocyanate equivalent | 89.5 |
| Ethoxyline resin equivalent | 44.3 |
2.Standard value:
| Property | Result |
| Viscosity（20°C） | 280 mPa.s |
| Viscosity（25°C） | 155 280 mPa.s |
| Diethyltoluenediamine | ≥98% (Q/370781YXHG001-2015) |
| 2,4-isomer | 75.0-81.0% |
| 2,6-isomer | 18.0-20.0% |
| Other alkyl amine | 0.5-3.0% |
| Amine value(mg KOH/g) | 615-635 |
| TDA Assay | ≥0.1% |
| Water content | ≥0.1% |
3.Uses and applications:
DETDA is a very effective polyurethane elastomer chain expansion agent, especially for the RIM (reaction injection molding) and SPUA (spray polyurea elastomer); also can be used as polyurethane elastomer and epoxy resin aromatic diamine curing agent, used for casting, coating, RIM and adhesive, but also is a polyurethane and polyurea elastomer chain extension agent.
DETDA is a type of aromatic diamine, ethyl and methyl groups, which makes the activity of is much lower than that of IDA. The reaction rate with polyurethane prepolymer several times faster than DMTDA, about 30 times faster than MOCA. Mainly used in RIM polyurethane system and spray polyurethane (polyurea) elastomer coating system, with a fast reaction rate, short release time, high initial strength, product resistance to hydrolysis,heat and so on. In addition to the product can also be used as elastomer, lubricants and industrial oil
antioxidant, and chemical intermediates.
4. Packaging and transport:
Packaging for 1000KG/IBC barrels, 200kg drums or ISOTANK, the special packagingaccordance with the requirements of customers.
5.Storage:
Stacked in a cool/ dry/ ventilated place, keep away from heat/ fire, to prevent the direct
sunlight, to avoid high temperature, do not sharp object collision damage.