p-phenylene diisocyanate PPDI 104-49-4

Product name: PPDI

Chemical Chinese Name: P-phenylene diisocyanate

Chemical English Name: 1,4-Phenylene diisocyanate

Recommended use: Chain Extender

The product is solid, sheet crystal or powder. Harmful if inhaled; irritating to eyes, respiratory system and skin. May cause sensitization after inhalation. Persons with respiratory diseases such as chronic bronchitis should avoid handling this material. Dust, steam and smoke are the main hazards to the respiratory tract.

Storage:

Keep sealed and dry. Do not put it together with food; avoid exposure to environments above 30°C.

Water pollution type (WGK): 1- Slightly pollutes water.

VCI Classification: 11

This product can cause a dust explosion. Avoid electrostatic contact when handling.

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Physical and chemical properties

Appearance and properties: Pale yellow to white flakes Crystal or powder

Odor: No information

Odor Threshold: No information

pH: No information

Melting point/freezing point (°C): 96 ~99°C (ICSC)

Boiling point/boiling range (°C): 260℃

Flash point (°C): No information available

The upper and lower limits of combustion/explosion[%(v /v)]: ​​Not applicable

Vapor pressure (mmHg): 0.048mmHg at 25°C (ICSC)

relative vapor density (air=1): No information

relative water density (water=1): 1.17 g/cm3 (ICSC)

Solubility in water (g/L): insoluble , reacts with water (ICSC)

n-octanol/water partition coefficient ( LogKow): No information

Auto-ignition temperature (°C): no information

Decomposition temperature: No information

Evaporation rate: no information

Flammability: Non-flammable (ICSC)

Explosiveness: No information

Oxidation: No information

Surface Tension (dyn/cm2): No Apply

Kinematic viscosity (mm2 /s): no Apply

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Stability and reactivity

Stability:

Stable under normal handling and storage conditions.

Possible Hazardous Reactions:

exothermic reaction with amines and alcohols; It reacts with water to release carbon dioxide. If it is sealed in a container with water, it will explode due to the increase of air pressure.

Conditions to avoid:

Open flames, sparks, high heat or other fires source, incompatibles.

Incompatible substances:

Water, amine, alcohol.

Hazardous Decomposition Products:

Proper storage and handling will not be harmful Decomposition products. On heating produces: Carbon oxides, nitrogen oxides.