【CAS】101-68-8
Alias: 1,1’-methylenebis(4-isocyanato)-benzene;para,para’-diphenylmethanediisocyanate
Molecular formula: C15H10N2O2 Relative molecular mass: 250.25
Structural formula:
1.Product Property
Light yellow molten solid with a strong irritating odor. Soluble in acetone, benzene, kerosene and nitrobenzene.
2.
| Parameter | Specification |
| Appearance | Light yellow to brown solid/liquid |
| Purity (GC, % wt.) | ≥ 99.5% (Polymer-grade) |
| NCO Content (% wt.) | 33.5 – 33.7 (Pure MDI) |
| Hydrolyzable Chloride | ≤ 0.01% (100 ppm) |
| Acidity (as HCl) | ≤ 0.002% (20 ppm) |
| Total Chlorine | ≤ 0.1% (1000 ppm) |
| Viscosity (25°C, mPa·s) | 150 – 250 (Liquid MDI) |
| Water Content | ≤ 0.05% (500 ppm) |
3.Application scope and Usage
The primary products of this item are widely used in polyurethane coatings, and are also applied in waterproof materials, sealing materials, ceramic materials, etc. The polyurethane foam plastics made from this item are used as insulation (cooling) components, building materials, vehicle parts, and ship parts. The refined products can be made into car bumpers, shock absorbers, synthetic leather, non-plastic polyurethane, polyurethane elastic fibers, non-plastic elastic fibers, blister films, adhesives, etc.
4.Package and Storage
The warehouse should be well-ventilated, kept at a low temperature and dry; items containing water, alcohols and amines should be stored separately.
