Tetraethylenepentamine (TEPA)
| Formula: | C₈H₂₃N₅ |
| CAS Number: | 112-57-2 |
| EC Number (EINECS): | 203-950-6 |
| HS Code: | 29211900 |
| UN Number: | 2735 (corrosive liquid, toxic, n.o.s. depending on shipment) |
| IUPAC Name: | 2,2′-(Ethane-1,2-diyldinitrilo)bis(ethylamine) |
| Also Known As: | TEPA; Tetraamine; Polyamine |
| Molecular Weight, g/mol: | 189.31 |
Typical Specifications
| Appearance: | Clear to pale yellow liquid |
| Odor: | Amine-like, strong |
| Melting Point, °C: | -3 to 0 |
| Boiling Point, °C: | 270–275 |
| Density, g/cm³ (at 20°C): | 0.968 |
| Flash Point, °C: | 110 (closed cup) |
| Refractive Index (20°C): | 1.478 |
| Solubility: | Miscible with water and many organic solvents |
| pH (1% solution): | ~11–12 |
| Purity, %: | ≥98 |
| Grades Available: | |
| Packaging: | 25kg, 50kg HDPE drums; 200kg steel drums |
Applications / Uses
Primary Applications
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Curing agent for epoxy resins
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Intermediate in polyamide and polyurethane production
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Component in corrosion inhibitors
Secondary Applications
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Used in adhesives, coatings, and sealants
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Chemical intermediate in water treatment, surfactants, and specialty chemicals
End Industries Served: Coatings, Adhesives, Polyurethane, Epoxy, Water Treatment, Specialty Chemicals
Safety & Handling Information
Hazard Class (GHS): Corrosive (Skin and Eye), Acute Toxicity (Category 4), Irritant
Hazard Statements (H-Codes):
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H312: Harmful in contact with skin
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H314: Causes severe skin burns and eye damage
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H332: Harmful if inhaled
Precautionary Statements (P-Codes):
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P280: Wear protective gloves/eye protection
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P261: Avoid breathing vapors
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P303 + P361 + P353: IF ON SKIN (or hair) – remove contaminated clothing, rinse with water
Storage Conditions
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Store in cool, dry, well-ventilated area
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Keep container tightly closed
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Avoid moisture and contact with acids or oxidizers
Transport Information
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ADR/RID: Class 8, UN2735, PG II
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IMDG: Class 8, UN2735
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IATA: Class 8, UN2735