M-Xylylene Diisocyanate, commonly abbreviated as m-XDI, is a highly versatile aromatic diisocyanate with the Chemical Abstracts Service (CAS) number 3634-83-1. Known by synonyms such as 1,3-Bis(isocyanatomethyl)benzene and m-Xylene Diisocyanate, this chemical compound plays a crucial role as a building block in the synthesis of various high-performance polymers and specialty materials. Its unique molecular structure, featuring two isocyanate groups attached to a meta-substituted benzene ring, grants it distinct reactivity and beneficial properties for advanced chemical applications.

At NINGBO INNO PHARMCHEM CO.,LTD., we recognize the significance of high-quality m-XDI in the chemical industry. Our m-Xylylene Diisocyanate typically presents as a colorless to light yellow clear liquid. It possesses a molecular formula of C10H8N2O2 and a molecular weight of approximately 188.19 g/mol. Key physical properties include a melting point around -7°C and a boiling point of 88-90°C at 0.02 mmHg, or 126°C at 1 mmHg, indicative of its liquid state under ambient conditions. With a density of 1.20 g/mL at 20°C and a refractive index of approximately 1.54, m-XDI exhibits characteristics that are essential for precise chemical formulations.

Purity is paramount for specialized applications of m-Xylylene Diisocyanate. NINGBO INNO PHARMCHEM CO.,LTD. supplies m-XDI with a high purity, typically 98.0% or greater (GC). This level of purity is critical, especially when the product is utilized in sensitive manufacturing processes. For optimal stability and to maintain its chemical integrity, m-XDI should be stored carefully, as it is sensitive to air, moisture, and heat. Proper storage at temperatures ranging from 0-10°C or 4°C is recommended to prevent degradation and ensure its long-term viability.

One of the most notable applications of m-Xylylene Diisocyanate is in the production of polythiourethanes. These advanced polymers are highly valued for their exceptional optical properties, including a high refractive index, superior transparency, and remarkable impact resistance. Such characteristics make polythiourethanes an ideal material for manufacturing high-quality optical lenses. Research indicates that using high-purity m-XDI, derived from a meticulously purified m-xylylene diamine, significantly enhances the performance of these optical materials, leading to improved refractive index, dispersion (Abbe number), and reduced yellowness or cloudiness.

Beyond optical applications, m-XDI serves as a versatile chemical intermediate in various other industrial sectors. Its diisocyanate functionality allows it to readily react with compounds containing active hydrogen atoms, making it invaluable in the synthesis of a broad spectrum of polymers, including polyurethanes, polyureas, and polyimides. These polymers find use in coatings, adhesives, elastomers, and foams, contributing to the development of durable, flexible, and high-performance materials across diverse industries.

As a leading m-Xylylene Diisocyanate manufacturer, NINGBO INNO PHARMCHEM CO.,LTD. is committed to delivering products that meet rigorous quality standards. Our manufacturing processes are designed to ensure consistent purity and reliable performance, supporting the critical needs of our global clientele. For those seeking a dependable m-Xylylene Diisocyanate supplier, NINGBO INNO PHARMCHEM CO.,LTD. offers competitive advantages. If you are looking to buy m-Xylylene Diisocyanate or wish to purchase m-Xylylene Diisocyanate for your research or industrial applications, we encourage you to contact us. We provide comprehensive product information, competitive price quotes, and dedicated support to facilitate your procurement process. Partner with us for your chemical sourcing needs and experience excellence in quality and service.