Chemical structure
NH₂CH(CH₃)CH₂-[0CH(CH₃)CH₂]x-[OCH₂CH₂]y-[OCH₂CH(CH₃)]z-NH₂
Y≈39， (X+Z)=6

Summary
ED-2003 is water soluble aliphatic diamine,it is waxy solid at room temperature. Molecular weight is about 2000. Easily soluble in water and various solvents. PH value is 11.2.

Physical and chemical index
Color Pt-Co　　　　　               ≤75
Primary amine content %　　  ≥95
Acetyl value mmol/g　　            0.90-1.05
Amine value  mmol/g　　　　  0.90-1.05 
Moisture %　　　　　　　         ≤0.35

Application
ED-2003 can be used as water-based coating, finishing agent for textile, etc.

Safety performance and toxicity
ED-2003 amine-terminated polyether is slightly toxic by oral administration; non-toxic by skin absorption, slightly irritating to skin. In case of contact with eyes, rinse with clear water for at least 5 min.

Packing, storage and transportation
ED-2003 is packed by 200Kg iron drum, keep in shading place. To protect from heat and damp. Shelf life is one year.