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4, 4' -Diphenylmethane diisocyanate （MDI）

  • 4, 4' -Diphenylmethane diisocyanate （MDI）
  • 4, 4' -Diphenylmethane diisocyanate （MDI）

4, 4' -Diphenylmethane diisocyanate （MDI）

CAS No.: 101-68-8
Molecular Formula: C15H10N2O2
Molecular Weight:250.25
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product description

As an important organic compound, MDI is widely used in the production of polyurethane foams, elastomers, coatings, and adhesives.


Chemical Properties

Chinese NameMethylenediphenyl Diisocyanate
English NameMethylenediphenyl diisocyanates (Abbr.: MDI)
Chemical FormulaC₁₅H₁₀N₂O₂
Molecular Weight250.25
CAS No.101-68-8
EINECS No.202-966-0
Melting Point36 ~ 39 °C
Boiling Point196 °C
Water SolubilityDecomposes upon contact
Density1.19 g/cm³
AppearanceColorless or light yellow solid
Flash Point200 °C
ApplicationPolyurethane foam plastics, elastomers, coatings
Risk PhrasesR23, R34, R42/43
UN Dangerous Goods No.2489
China Dangerous Goods No.61545


Product Usage

Production of polyurethane elastomers—this is its primary application.

Manufacturing of synthetic fibers and artificial leather; for instance, it is used in certain synthetic leather products.

Production of solvent-free coatings and adhesives; it also finds application in the plastics and rubber industries.

Polyurethane foam made from it is used in sectors such as construction materials, automotive parts, and thermal insulation.


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FAQ

Q1：Does it support customized products?

A1：Yes, it does. Formulations can be adjusted and customized production can be carried out according to customer's industry needs and performance parameters.


Q2：Can samples be provided?

A2：We support free sample delivery and testing services to meet customers' early testing needs.


Q3：Is the product quality stable? 

A3：With full-process quality inspection and control, there are minimal batch differences, and the purity and stability strictly meet the standards.


Q4：What is the shipping cycle?

A4：For regular inventory, we offer quick delivery. For customized orders, we arrange production according to demand and ensure timely delivery.

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