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Toluene Diisocyanate

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Toluene Diisocyanate Specification

HS Code
29291010

Other Names
TDI

Melting Point
20 C

Molecular Weight
174.16 g/mol

Boiling point
251 C

Form
Liquid

Purity
99% Min

Molecular Formula
C9H6N2O2

Density
1.214 Gram per cubic centimeter(g/cm3)

Structural Formula
OCNC6H4CH3NCO

Poisonous
Yes

Solubility
Slightly soluble in water, soluble in most organic solvents

Shape
Liquid

Storage
Keep container tightly closed, store in cool, dry, well-ventilated area

Refractive Rate
1.569 at 20 C

Smell
Sharp, pungent odor

Classification
Hazardous chemical

Chemical Name
Toluene Diisocyanate

CAS No
26471-62-5

EINECS No
202-688-8

Grade
Industrial Grade

Standard
GB/T 2903-2008

Type
Isocyanate compound

Usage
Industrial

Main Material
Toluene Diisocyanate

Application
Used in the production of polyurethane foams, coatings, adhesives, and elastomers

Hazard statements
Harmful by inhalation, skin contact; may cause sensitization

Vapor Pressure
0.01 mmHg at 25 C

Autoignition Temperature
635 C

Stability
Stable under recommended storage conditions

Appearance
Clear to pale yellow liquid

Flash Point
127 C (open cup)

UN Number
2078

About Toluene Diisocyanate

TOLUENE DIISOCYANATE (TDI 80/20)

CAS: 584-84-9 UN NO.:2078 IMDG Class NO. : 6.1

1*20ft container loading qty: 20tons ( 250kgs/red iron drum)

Test Item	Index	Test Result
Purity(WT)%	99.7min	99.8
2,4-Isomer%	80+/-1	79.6
2,6-Isomer%	20+/-1	19.6
Acidity%(HCL)	0.0015MAX	0.0004
Hydrolyzable Chloride(WT)%	0.004MAX	0.0033
Color (APHA)	15 MAX	5
Total Chloride(WT)%	0.018 MAX	0.005
Appearance	In compliance with the above specification.

Versatile Material for Polyurethane Production

Toluene Diisocyanate is integral to the production of high-performance polyurethane materials. Its unique chemical structure allows for the creation of flexible foams, durable elastomers, and strong adhesives and coatings. The compounds industrial-grade purity ensures optimal results for manufacturing applications, making it widely preferred in construction, furniture, automotive, and packaging sectors.

Handling and Storage Precautions

Safety is paramount when working with Toluene Diisocyanate. The compound should be stored in a cool, dry, and well-ventilated area, with containers kept tightly sealed to maintain stability. Due to its hazardous nature, proper personal protective equipment is essential to prevent inhalation and skin contact. Following recommended guidelines ensures safe handling and longevity of the product.

FAQs of Toluene Diisocyanate:

Q: How is Toluene Diisocyanate typically used in industrial applications?

A: Toluene Diisocyanate is mainly utilized for producing polyurethane foams, coatings, adhesives, and elastomers. These products are essential in industries such as automotive, construction, furniture, and packaging.

Q: What safety precautions should be taken when handling Toluene Diisocyanate?

A: It is important to use appropriate personal protective equipment such as gloves, goggles, and masks. Additionally, handling should be done in well-ventilated areas and containers should be kept tightly closed to prevent harmful exposure.

Q: When is the ideal time to store or use Toluene Diisocyanate?

A: Toluene Diisocyanate should be stored and used under recommended conditionsspecifically, in a cool, dry, and well-ventilated area. Avoid exposure to moisture or open flames, as the compound is sensitive and possesses a flash point of 127C.

Q: Where should Toluene Diisocyanate be stored for optimal stability?

A: Store Toluene Diisocyanate in tightly sealed containers, placed in a cool, dry, and well-ventilated storage space. This prevents contamination and maintains its stability and effectiveness.

Q: What is the process for using Toluene Diisocyanate in polyurethane manufacturing?

A: The process involves mixing TDI with polyols and catalysts under controlled conditions to initiate a chemical reaction that forms polyurethane foam or elastomers. Proper temperature, mixing ratio, and safety protocols must be maintained during production.

Q: What are the benefits of using Toluene Diisocyanate in manufacturing?

A: Toluene Diisocyanate offers high reactivity and purity, enabling the production of versatile polyurethane materials with excellent mechanical strength, flexibility, and durability, meeting diverse industrial requirements.

Q: Is Toluene Diisocyanate soluble in water or other solvents?

A: Toluene Diisocyanate is only slightly soluble in water but dissolves readily in most organic solvents, which makes it suitable for a variety of industrial formulations.

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