Ethoduomeen T 25; NYMEEN DT-203
CAS: 61790-85-0
Category: Surfactants
| Purity | Industrial Grade: Active matter ≥95%; High-Purity Grade: Active matter ≥98% |
| Molecular Formula | R-NH(CH2)3NH(CH2CH2O)nH (UVCB mixture; R = C16–C18 tallow alkyl, n ≈ 2–5) |
| Molecular Weight | Variable (typically 500–750 g/mol depending on deg |
| Appearance | Amber to light yellow viscous liquid or semi-solid paste with mild amine odor |
| Packaging | 25 kg HDPE pail, 200 kg polyethylene-lined steel drum, 1000 kg IBC tote |
| Testing Indicators | Appearance — Visual inspection; Active matter — Nonvolatile content (ASTM D2369); Amine value — Acid-base titration (ASTM D2074); Hydroxyl value — ASTM E222; Moisture — Karl Fischer titration (ASTM E203 / GB/T 6283); pH (5% aqueous solution) — ASTM E70; Cloud point — ASTM D2024; Density — ASTM D4052; Viscosity — ASTM D2196; Ethylene oxide distribution — GC or HPLC; Identification — FTIR spectroscopy; Heavy metals — ICP-OES or ICP-MS. |
| Storage Notes | Store in tightly closed original containers in a cool, dry, well-ventilated warehouse at 5–35°C. Protect from direct sunlight, excessive heat, freezing, and moisture. Avoid contact with strong oxidizing agents and strong mineral acids. Stir before use if slight phase separation occurs after prolonged storage. |
| Lead Time | 10 days |
Ethoduomeen T 25 is an ethoxylated tallow alkyl diamine nonionic/cationic surfactant widely used as an emulsifier, wetting agent, dispersant, corrosion inhibitor, antistatic additive, flotation reagent, textile auxiliary, asphalt additive, lubricant additive, and mineral processing chemical. It provides excellent surface activity, metal surface adsorption, corrosion protection, emulsification, and dispersion performance in industrial formulations.