Desmodur® 0118 T FUSED
Desmodur® 0118 T FUSED is a monomeric diphenylmethane 4,4' diisocyanate(MDI) with a molecular weight of 250 [g/mol].
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About
Product Types
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Material
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General Characterization
Desmodur® 0118 T FUSED is a monomeric diphenylmethane 4,4' diisocyanate(MDI) with a molecular weight of 250 [g/mol].
At room temperature the product takes the form of a white to pale yellow solid. It is used to produce polyurethanes, among other things.
At room temperature the product takes the form of a white to pale yellow solid. It is used to produce polyurethanes, among other things.
Storage Conditions
- Storage in original sealed container.
- Recommended storage temperature: < 5 °C.
- Protect from moisture, heat and foreign material.
General information: The product is sensitive to moisture. Like all isocyanates, it reacts with water to form insoluble urea derivatives and carbon dioxide. In closed containers, the formation of carbon dioxide can results in a dangerous build-up of pressure. Contact with air, especially coupled with exposure to light, accelerates the yellowing of the product. Generally speaking, the processing properties are not affected by yellowing. As a result of dimerization (formation of uretdione), the product is sensitive to heat. The solid product dimerizes more quickly at room temperature than the liquid product stored at 42 °C. Therefore, solid product should be stored at temperatures below 5 °C and melted quickly and carefully. Although dimerization declines with decreasing temperature, the storage stability is also limited at 5 °C. Handling instructions, safety data, information and proposals for melting units can be supplied on request. Storage time Covestro represents that, for a period of three months following the day.
- Recommended storage temperature: < 5 °C.
- Protect from moisture, heat and foreign material.
General information: The product is sensitive to moisture. Like all isocyanates, it reacts with water to form insoluble urea derivatives and carbon dioxide. In closed containers, the formation of carbon dioxide can results in a dangerous build-up of pressure. Contact with air, especially coupled with exposure to light, accelerates the yellowing of the product. Generally speaking, the processing properties are not affected by yellowing. As a result of dimerization (formation of uretdione), the product is sensitive to heat. The solid product dimerizes more quickly at room temperature than the liquid product stored at 42 °C. Therefore, solid product should be stored at temperatures below 5 °C and melted quickly and carefully. Although dimerization declines with decreasing temperature, the storage stability is also limited at 5 °C. Handling instructions, safety data, information and proposals for melting units can be supplied on request. Storage time Covestro represents that, for a period of three months following the day.
Sampling
Moisture access should be prevented when taking product samples.
Packaging Type
Desmodur® 0118 T Fused can be supplied as a solidified block in large drums ( net weight 225 kg ).
Technical Properties & Datasheets
Characteristics
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| Purity ( mol. wt. 250 ) | MDI-01-01 | % by wt. | ≥ 99.5 |
| Specific Heat (cp) | kJ/(kg*K) | approx. 1.39 | |
| Heat of fusion | J/g | approx. 102 | |
| Viscosity at 40 °C | MDI-01-02 | mPa·s | 4.1 |
| Freezing point | MDI-01-17 | °C | 38.4 |
| Density at 40 °C | DIN 51757 | g/cm³ | 1.19 |
| Phenyl isocyanate content | MDI-01-09 | ppm | ≤ 10 |
| NCO content (theoretical) | % by wt. | 33.6 |
Specifications
| Property Name | Test Method | Unit | Value |
|---|---|---|---|
| 4,4'-MDI Content | MDI-01-06 | % by wt. | ≥ 98.2 |
| 4,4'-MDI Content | MDI-01-06 | % by wt. | ≥ 98.2 |
| 2,4'-MDI Content | MDI-01-06 | % by wt. | ≤ 1.8 |
| 2,4'-MDI Content | MDI-01-06 | % by wt. | ≤ 1.8 |
| Hydrolysable chlorine | MDI-01-04 | ppm | ≤ 25 |
| Hydrolysable chlorine | MDI-01-04 | ppm | ≤ 25 |
Downloads
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Technical Data Sheet
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Safety Data SheetNo direct download available, please visit www.productsafetyfirst.covestro.com
