Hexamethylene Diamine

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EINECS No 204-679-6
Ingredients Hexamethylene diamine
Properties Hygroscopic, colorless, highly soluble in water, alkaline
HS Code 29212990
Molecular Formula C6H16N2
Melting Point 39.5C
Grade Industrial Grade
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Hexamethylene Diamine Product Specifications

Shelf Life 12 months if stored properly
Product Type Chemical Compound
Usage Raw material for nylon, lubricants, coatings, and anti-corrosion agents
Storage Store in tightly sealed containers, in a cool, dry, well-ventilated area
Solubility Miscible with water
Physical Form Liquid
Shape Liquid
Taste Bitter, amine-like
Structural Formula H2N(CH2)6NH2
Smell Ammoniacal odor
CAS No 124-09-4
Density 0.84 Gram per cubic centimeter(g/cm3)
Appearance Clear, colorless to pale yellow liquid
Molecular Weight 116.21 g/mol
Poisonous YES
Refractive Rate 1.4575 (20 C)
Molecular Formula C6H16N2
HS Code 29212990
Properties Hygroscopic, colorless, highly soluble in water, alkaline
Ingredients Hexamethylene diamine
EINECS No 204-679-6
Purity 99% Min
Ph Level Alkaline, typically above 12
Application Used in nylon 6,6 polymerization; intermediates in chemical synthesis; epoxy hardeners
Grade Industrial Grade
Melting Point 39.5C

Thermal Decomposition Above 250 °C decomposes releasing toxic vapors (nitriles, ammonia, nitrogen oxides)
Compatibility Incompatible with strong oxidizing agents, acids, copper and zinc alloys
Packing Available in drums, IBC containers or bulk
Stability Stable under recommended storage conditions
Transport Hazard Class 8 (Corrosive)
Hazard Statement Causes severe skin burns and eye damage
Vapor Pressure 3 Pa (at 20 °C)
Boiling Point 204 °C
Viscosity 7.6 mPa·s (at 25 °C)
Flash Point 87 °C
UN Number 2286
EC Number 204-679-6
pKa value 10.87
Production Method Hydrogenation of adiponitrile
Odor Threshold 0.11 ppm
Autoignition Temperature 365 °C

Hexamethylene Diamine Trade Information

Main Export Market(s) Asia, Australia, Central America, North America, South America, Eastern Europe, Western Europe, Middle East, Africa

Product Description

General description:

Chemical Formula: C6H16N2

Hexamethylenediamine is the organic compound. The molecule is a diamine, consisting of a hexamethylene hydrocarbon chain terminated with amine functional groups. The colorless solid has a strong amine odor. About 1 billion kilograms are produced annually.

Application & Usage:

Hexamethylenediamine is used mainly for the manufacture of unmodified resins, water treatment resins, resins used in paper manufacture and adhesive resins.

Key Features and Physical Properties

Hexamethylene Diamine stands out for its high purity and clear, colorless to pale yellow appearance. It is readily soluble in water, has a strong alkaline pH above 12, and remains liquid at room temperature. With a melting point of 39.5 C, boiling point of 204 C, and density of 0.84 g/cm, its stability and effectiveness make it a preferred choice in industrial chemical processes.

Applications and Industrial Utility

Primarily, Hexamethylene Diamine is utilized in the production of nylon 6,6, which is essential for fibers and molded plastics. Its role extends to being a raw material for lubricants, anti-corrosion agents, coatings, and as a hardener for epoxy resins. Its high reactivity and solubility ensure efficient processing for manufacturers seeking durability and chemical resistance in end-products.

Safe Handling and Storage Guidelines

Classified as a hazardous, corrosive substance (UN 2286, Class 8), Hexamethylene Diamine must be handled with care: always wear protective equipment, ensure storage in tightly sealed containers, and place them in cool, dry, and well-ventilated environments. Proper storage preserves its quality for up to 12 months, and adherence to recommended guidelines helps prevent exposure and maintain workplace safety.

FAQs of Hexamethylene Diamine:

Q: How is Hexamethylene Diamine manufactured?

A: Hexamethylene Diamine is typically produced by the catalytic hydrogenation of adiponitrile under high pressure and temperature, yielding a highly pure, industrial-grade compound widely used in the polymer and chemical industries.

Q: What are the primary uses of Hexamethylene Diamine?

A: The main application is in the polymerization process for producing nylon 6,6. It is also used as a raw material in synthesizing lubricants, coatings, anti-corrosion agents, epoxy hardeners, and other chemical intermediates.

Q: When should Hexamethylene Diamine be handled with special care?

A: Due to its corrosive properties and ability to cause severe skin burns and eye damage, strict safety protocols should be observed at all times, particularly during transfer, mixing, and storage operations.

Q: Where is Hexamethylene Diamine typically stored in industrial settings?

A: It should be stored in tightly sealed drums, IBC containers, or bulk tanks in cool, dry, well-ventilated areas, away from incompatible substances such as strong oxidizers, acids, copper, and zinc alloys.

Q: What are the key benefits of using Hexamethylene Diamine in nylon production?

A: It ensures high molecular weight and superior mechanical properties in nylon 6,6 fibers and resins, resulting in enhanced strength, durability, and resistance to chemicals.

Q: How should accidental spills of Hexamethylene Diamine be managed?

A: Evacuate the area, use appropriate personal protective equipment, and contain the spill with inert absorbent material. Avoid release into the environment and dispose of waste in accordance with local regulations.

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