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1,4-Phenylene diisocyanate Structure

1,4-Phenylene diisocyanate

Chemical Properties

Melting point 96-99 °C (lit.)
Boiling point 260 °C (lit.)
Density  1.3848 (rough estimate)
vapor pressure  <0.01 mm Hg ( 20 °C)
refractive index  1.4900 (estimate)
Flash point >230 °F
solubility  THF: soluble
form  powder to crystal
color  White to Light yellow
Water Solubility  130mg/L at 20℃
Stability Stable. Combustible. Incompatible with strong oxidising agents, strong alkalies, strong acids, alcohols, amines. Moisture sensitive.
LogP 3.19 at 20℃
CAS DataBase Reference 104-49-4(CAS DataBase Reference)
FDA UNII OKE64XZR2L
NIST Chemistry Reference Benzene, 1,4-diisocyanato-(104-49-4)
EPA Substance Registry System 1,4-Phenylene diisocyanate (104-49-4)

Safety

Symbol(GHS) GHS hazard pictogramsGHS hazard pictogramsGHS hazard pictograms
Signal wordDanger
Hazard statements H315-H317-H319-H330-H334-H411
Precautionary statements P260-P273-P280-P302+P352-P304+P340+P310-P305+P351+P338
Hazard Codes  Xn,C
Risk Statements  20/21/22-36/37/38-42-34-41-38
Safety Statements  22-26-36/37-45-36/37/39
RIDADR  UN 2811 6.1/PG 3
WGK Germany  3
RTECS  CZ6150000
HazardClass  6.1
PackingGroup  III
HS Code  29291010
NFPA 704:
1
3 0

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