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1,4-Phenylene diisocyanate

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1,4-Phenylene diisocyanate Basic information

Product Name:
1,4-Phenylene diisocyanate
Synonyms:
  • isocyanicacid,p-phenyleneester
  • Phenylene-1,4-diisocyanate
  • p-Phenylene isocyanate
  • p-phenyleneisocyanate
  • P-PHENYLENE DIISOCYANATE
  • PPDI
  • FLURBIPROFEN USP24
  • p-phenyl diisocyanate
CAS:
104-49-4
MF:
C8H4N2O2
MW:
160.13
EINECS:
203-207-6
Product Categories:
  • Building Blocks
  • Chemical Synthesis
  • Nitrogen Compounds
  • Isocyanates
  • Nitrogen Compounds
  • Organic Building Blocks
  • Resin additives
  • Organic Building Blocks
Mol File:
104-49-4.mol
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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
Stability:
Stable. Combustible. Incompatible with strong oxidising agents, strong alkalies, strong acids, alcohols, amines. Moisture sensitive.
CAS DataBase Reference
104-49-4(CAS DataBase Reference)
NIST Chemistry Reference
Benzene, 1,4-diisocyanato-(104-49-4)
EPA Substance Registry System
1,4-Phenylene diisocyanate (104-49-4)
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Safety Information

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

MSDS

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1,4-Phenylene diisocyanate Usage And Synthesis

Chemical Properties

white to light yellow crystals

Synthesis Reference(s)

Journal of Heterocyclic Chemistry, 7, p. 177, 1970 DOI: 10.1002/jhet.5570070126

General Description

White crystals or pale yellow chunky solid. Pungent odor.

Air & Water Reactions

Reacts slowly with water to form CO2

Reactivity Profile

1,4-Phenylene diisocyanate is sensitive to moisture. 1,4-Phenylene diisocyanate is incompatible with water, strong acids, strong alkalis, strong oxidizers, alcohol, amines and other hydrogen compounds.

Fire Hazard

1,4-Phenylene diisocyanate is combustible.

1,4-Phenylene diisocyanateSupplier

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