(1,4-Cyclohexanediyl)bisisocyanate - Risk and Safety
UN IDs
2922
Hazard Class
8
Packing Group
II
(1,4-Cyclohexanediyl)bisisocyanate - Introduction
cyclohex-1,4-ylene diisocyyanate, chemical formula C8H12N2O2, also known as HDI. The following is an introduction to the nature, use, formulation and safety information of HDI:
Nature:
-Appearance: HDI is a colorless to pale yellow liquid.
-Density: 1.11-1.14g/cm³
-Boiling point: 254-256 ° C
-Melting point: 0 ° C
-Solubility: HDI is soluble in some organic solvents such as ethers, alcohols and esters.
Use:
- HDI is mainly used as a raw material for coatings and adhesives, especially in automotive paints, coatings and adhesives.
-It has excellent weather resistance, chemical resistance and abrasion resistance, making it an important component of high-quality coatings and adhesives.
Preparation Method:
The preparation of - HDI is generally obtained by reacting cyclohexane -1, 4-diol with an isocyanate. The reaction needs to be carried out at an appropriate temperature and reactant concentration to eventually produce HDI.
Safety Information:
- HDI is an irritating compound that may cause irritation and allergic reactions in contact with the skin, eyes or inhalation.
-appropriate personal protective measures should be taken when using HDI, such as wearing protective gloves, safety glasses and respiratory protective equipment.
-Avoid mixing with other chemicals, especially solvents containing water or alcohol.
-When storing and handling HDI, care should be taken to avoid fire and high temperature.