Amines
REACH
Tripropylamine
CAS Number
102-69-2
EC Number
203-047-7
FEMA Number
FEMA 4247
Abbreviation
TPA
What is Tripropylamine?
Tripropylamine (CAS 102-69-2), also abbreviated as TPA, is a tertiary aliphatic amine. FEMA 4247.
Where is Tripropylamine used?
- Pharmaceutical and fine chemical synthesis: base catalyst or acid scavenger in condensation reactions
- Agrochemicals: neutralizer of acidic herbicide and pesticide concentrates
- Polymer and resin production: curing catalyst and process aid
- Lubricants and metalworking fluids: pH stabilizer that reduces corrosion in metal-cutting
- It functions primarily as a catalyst and pH buffer.
Good to know: Controlled basicity is critical to yield and purity during acylation processes. A slower-acting tertiary amine is preferred over more reactive alternatives in the manufacturing cycle.
Commercial specifications
- Purity typically 99% or above
- Clear liquid in standard drums, IBCs, bulk tankers
Other Names (Synonyms)
propyldi-n-propylamine|NPr3|N,N-dipropyl-1-propanamine|(n-C3H7)3N|Tri-n-propylamine|1-Propanamine, N,N-dipropyl-|06S624V3U2|TPA
What are the physical properties of Tripropylamine?
Melting Point -93.5 °C
Boiling Point 156 °C
Density 0.7558 g/cm³ @ Temp: 20 °C
Flash Point 98 °F
Appearance colourless liquid
Color Clear colorless
Odor at 0.10 % in propylene glycol. fishy ammoniacal
Form Liquid
Water Solubility 2.6 g/L (20 ºC)
Vapor Pressure 2.9 mm Hg ( 20 °C)
Refractive Index n 20/D 1.416(lit.)
pH 11.4 (2.6g/l, H2O, 20℃)
Log P 0.9 at 25℃
How is Tripropylamine classified and handled safely? Learn More
Danger
GHS02· Flammable GHS05· Corrosive GHS06· Toxic GHS07· Irritant
Hazard Statements
H226 Flammable liquid and vapor
H301 Toxic if swallowed
H311 Toxic in contact with skin
H314 Causes severe skin burns and eye damage
Precautionary Statements
P210 Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P233 Keep container tightly closed.
P240 Ground and bond container and receiving equipment.
P241 Use explosion-proof [electrical/ventilating/lighting/…] equipment.
Which trade and regulatory codes apply to Tripropylamine?
HS Code 29211980
UN Number 2260
ADR Class 3
Packing Group III
Storage Class 3 - Flammable liquids
WGK (Germany) 2