Description

1,5-Naphthalene Diisocyanate (NDI) is a specialized aromatic diisocyanate monomer known for its high-performance characteristics in polymer synthesis. This compound is a critical building block for creating advanced polyurethane and polyurea materials with exceptional thermal stability, chemical resistance, and mechanical properties. It is primarily sought by manufacturers in the elastomer, adhesive, coating, and specialty polymer industries for demanding applications.

Application

• High-Performance Elastomers: Key monomer for producing polyurethane and polyurea elastomers with superior abrasion resistance, tensile strength, and dynamic load-bearing capacity, used in industrial wheels, rollers, and mining screens.
• Specialty Coatings & Adhesives: Imparts excellent durability, flexibility, and chemical resistance to coatings for pipelines, tank linings, and industrial floors, as well as high-strength structural adhesives.
• Automotive & Aerospace Components: Used in the formulation of lightweight, durable components such as seals, gaskets, and vibration dampeners that must withstand extreme temperatures and harsh environments.
• Thermoplastic Polyurethanes (TPU): Serves as a raw material for high-modulus TPUs used in cable sheathing, hoses, and technical films.
• Casting and Molding Resins: Employed in the production of precision cast parts and mold-making materials that require high dimensional stability and thermal resistance.
• Crosslinking Agent: Functions as an effective crosslinker for polymers, enhancing the network density and final properties of various resin systems.

Basic Information

Product Name	1,5-Naphthalene Diisocyanate
CAS No.	3173-72-6
Molecular Formula	C12H6N2O2
Molecular Weight	210.19 g/mol
Synonyms	NDI; 1,5-Diisocyanatonaphthalene; Naphthalene-1,5-diisocyanate; 1,5-Naphthylene Diisocyanate; Naphthalene Diisocyanate; Desmodur 15; Baymidur KL 3-5001; Vulkolian; NDI-100
EINECS	221-641-4

Quality Control

Our 1,5-Naphthalene Diisocyanate is manufactured under stringent process controls to ensure batch-to-batch consistency and high purity. Quality is verified through a comprehensive suite of analytical methods including chromatography and titration. A Certificate of Analysis (COA) detailing purity, isocyanate content, and impurity profiles is provided with each shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under a dry inert atmosphere (e.g., nitrogen) to prevent reaction with atmospheric moisture and carbon dioxide, which can lead to polymerization or solidification.

Specification

Item	Specification
Appearance	White to pale yellow crystalline solid
Identification (IR)	Conforms
Assay (NCO Content)	≥ 99.0 %
Purity (HPLC)	≥ 98.5 %
Melting Point	126 - 130 °C
Hydrolyzable Chlorine	≤ 0.01 %
Total Chlorine	≤ 0.05 %
Solubility	Soluble in aromatic hydrocarbons, esters, ketones

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.