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| Classification | Paint Additives |
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CAS No. 33329-35-0
Content 95%
Packing 170kg/drum
| Name | N,N-bis[3-(dimethylamino)propyl]-N’,N’-dimethylpropane-1,3-diamine |
| Synonyms | RC-9 Polycat 9 Tris-(dimethylaminopropyl)amine Tris(N,N-diMethylaMinopropyl)aMine Tris-(3-dimethylamino)-propylamine 1,3-Propanediamine, N,N-bis3-(dimethylamino)propyl-N,N-dimethyl- N,N-bis[3-(dimethylamino)propyl]-N’,N’-dimethylpropane-1,3-diamine N1,N1-Bis(3-(Dimethylamino)propyl)-N3,N3-dimethylpropane-1,3-diamine |
| CAS | 33329-35-0 |
| EINECS | 251-459-0 |
| InChI | InChI=1/C15H36N4/c1-16(2)10-7-13-19(14-8-11-17(3)4)15-9-12-18(5)6/h7-15H2,1-6H3 |
| Molecular Formula | C15H36N4 |
| Molar Mass | 272.47 |
| Density | 0.892±0.06 g/cm3(Predicted) |
| Boling Point | 297.7±8.0 °C(Predicted) |
| Flash Point | 112.5°C |
| Water Solubility | 54.99g/L at 25℃ |
| Solubility | Chloroform (Sparingly), Methanol (Slightly) |
| Vapor Presure | 1.333hPa at 10℃ |
| Appearance | Oil |
| Color | Colourless |
| pKa | 10.05±0.28(Predicted) |
| Storage Condition | 2-8°C |
| Refractive Index | 1.478 |
| LogP | 0.05 at 25℃ |
| Property | Specification |
|---|---|
| Chemical Name | N,N,N-Tris(3-dimethylaminopropyl)amine |
| Molecular Formula | C₁₅H₃₆N₄ |
| Appearance | Clear to pale yellow liquid |
| Density (25°C) | 0.90–0.95 g/cm³ |
| Boiling Point | >200°C (decomposes) |
| Viscosity (25°C) | 50–150 mPa·s |
| Solubility | Soluble in water, ethanol, acetone |
| pH (10% solution) | 10.0–12.0 |
| Amine Value | 450–500 mg KOH/g |
| Ionic Nature | Strongly basic (tertiary amine) |
| Application | Function | Typical Concentration |
|---|---|---|
| Epoxy Curing Agent | Crosslinker | 10–30% w/w |
| Polyurethane Catalyst | Gelation promoter | 0.1–1% w/w |
| Corrosion Inhibitor | Metal chelator | 0.5–5% w/w |
| Textile Auxiliaries | Dye-fixing agent | 1–5% w/w |
| Oilfield Chemicals | Scale inhibitor | 0.2–2% w/w |
High reactivity due to multiple tertiary amine groups
Excellent chelation for metal ions (Fe²⁺, Cu²⁺)
Thermal stability up to 180°C
Water solubility for aqueous formulations
| Parameter | Specification |
|---|---|
| Flash Point | >150°C |
| Skin Irritation | Severe |
| Eye Irritation | Severe |
| Storage Conditions | Keep sealed at 15–30°C |
| Shelf Life | 24 months |
| Regulatory Status | REACH compliant |
| Handling Precautions | Full PPE required (gloves, goggles, ventilation) |
This highly branched polyamine features three dimethylaminopropyl groups, offering exceptional reactivity as a crosslinker, catalyst, and chelator. Its applications span epoxy curing, PU foams, and corrosion inhibition, where its multifunctional amine groups enhance performance. Strict safety measures are required due to its strong alkalinity and irritation potential.
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