Toluene diisocyanate

Toluene diisocyanate (abbreviated as TDI) is an important organic chemical raw material, mainly used for the production of polyurethane (PU) soft foam plastics, coatings, adhesives, and elastomers, etc. This substance has a strong irritant and toxic nature, and strict safety precautions must be taken during operation.

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Paramètres techniques
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Description du produit

Basic physical and chemical properties

1. Appearance: Colorless transparent or pale yellow flammable liquid with a strong irritating odor.

2. Common isomers: Industrially, it is mainly a mixture of 2,4-TDI and 2,6-TDI (the most common ratio is 80/20, i.e., TDI-80).

3. Chemical formula: CH₃C₆H₃(NCO)₂

Paramètres techniques

Quality specification
Iterm	Specification	Result
PURITY(m/m):	99.5MIN	99.85PCT
ISOMERIC RATIO(2.4/2.6):	80/20±1.0	79.4/20.6
ACIDITY(on HCL basis)(ppm):	30MAX	6
COLOR(APHA):	25MAX	15
HYDROLYZABLE CHLORINE (PPM) :	80MAX	68
Conclusion	Qualified

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Nom du produit: Toluene diisocyanate

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