Pentamethyldiethylenetriamine is a chemical substance with the molecular formula C9H23N3. It is a high-efficiency catalyst for polyurethane soft foam. It is used in the formulation of soft foam products and can be used as an auxiliary catalyst for hard foam to improve the fluidity of PU foam in large-capacity refrigerators.
Chinese name N,N,N,N,N-pentamethyldiethylenetriamine
English name N,N,N’,N”,N”-Pentamethyldiethylenetriamine
Alias 1,1,4,7,7-Pentamethyldiethylenetriamine, pentamethyldiethylenetriamine, CAS 3030-47-5, Polycat 5, Niax C-5, Jeffcat PMDETA, Lupragen N301, Tegoamin PMDETA, PC CAT PMDETA, Addocat PV, Toyocat DT, Polycat 5 catalyst, hard foam catalyst PC5
Chemical formula C9H23N3
Molecular weight 173.3
CAS Registry Number 3030-47-5
Melting point −20℃
Boiling point 198℃
Water soluble, soluble in water, ether and alcohol solvents
Appearance Colorless or light yellow transparent liquid
Flash point 53℃
MDL number: MFCD00014876
Refractive index: 1.442(lit.)
Physical properties of pentamethyldiethylene triamine:
English name: N,N,N’,N”,N”-Pentamethyldiethylenetriamine
Molecular formula: C9H23N3
Molecular weight: 173.3
Physical and chemical properties
Pentamethyldiethylene triamine is a colorless to pale yellow clear liquid, and is easily soluble in water.
Viscosity (25℃): 2mPa.s
Relative density (20℃): 0.8302-0.8306
Flash point (closed loop): around 72℃
Flash point (PMCC): 83.3℃
Boiling range: 196-201℃ or 70-80℃ (1100Pa)
Vapor pressure (21℃): 0.29*133pa
Freezing point: <-20℃
Pentamethyldiethylenetriamine is generally obtained by diethylenetriamine as the raw material for N-methylation. The methylation methods include formic acid/formaldehyde method and formaldehyde hydrogenation method.
Features and uses:
Pentamethyldiethylene triamine is a highly active and strong foaming polyurethane catalyst, which can also be used to balance the overall foaming and gel reaction. It is widely used in various polyurethane rigid foams, including polyisocyanuric acid sheet rigid foams, and can also improve foam fluidity, so it can improve product production technology and product quality. Pentamethyldiethylene triamine can also be used alone as a catalyst for polyurethane foam formulations, or in combination with other catalysts such as DNCHA. When used alone as a hard foam catalyst, the dosage range is 1.0-2.0 parts by mass per 100 parts by mass of polyol. In addition to being used in rigid foam formulations, pentamethyldiethylenetriamine can also be used in the production of polymethane polyurethane soft block foams and molded foams.
Storage and transportation:
Should be sealed and stored in a dry, cool and ventilated warehouse
180KG/drum Storage: It is recommended to store in a dry and cool area with proper ventilation. After the original packaging, please fasten the packaging cover as soon as possible to prevent the water and other substances from mixing into the product and affecting its performance. Do not breathe dust, avoid skin and mucous membrane contact. Smoking, eating and drinking are prohibited in the workplace. After work, shower and change clothes. Store contaminated clothing separately and wash it before reuse. Maintain good hygiene habits.