isocyanate
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Category：Chemical Additives Own Brand：MT /MOQ:100KG /From China/ B2B only.
Introduction
Isocyanate
Chemical Formula: -N=C=O
Structure: Reactive functional group with a nitrogen atom bonded to a carbonyl carbon (C=O). Common compounds include:
- Toluene Diisocyanate (TDI).
- Methylene Diphenyl Diisocyanate (MDI).
Physical Properties
- Physical State: Colorless to pale yellow liquids or solids.
- Odor: Pungent.
- Reactivity: Reacts vigorously with polyols to form polyurethanes.
Applications
- Polyurethane Production:
- Key component in foams, coatings, adhesives, and elastomers.
- Industrial Uses:
- Manufacture of insulation materials, furniture, automotive parts, and footwear.
Safety Considerations ⚠️
- Toxicity:
- Severe respiratory irritant; may cause asthma or hypersensitivity.
- Skin contact leads to irritation or dermatitis.
- Handling:
- Use PPE (gloves, goggles, respirator) and ensure adequate ventilation.
- Storage:
- Store in a cool, dry, airtight container away from moisture and incompatible substances.
Summary:
Isocyanates’ reactivity with polyols underpins their critical role in polyurethane manufacturing. Their toxicity and irritant properties demand strict adherence to safety protocols in industrial and laboratory settings.
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