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HomeProduct name list1,4-Phenylene diisocyanate

1,4-Phenylene diisocyanate

  • CAS NO.:104-49-4
  • Empirical Formula: C8H4N2O2
  • Molecular Weight: 160.13
  • MDL number: MFCD00002025
  • EINECS: 203-207-6
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2024-11-21 15:02:05
1,4-Phenylene diisocyanate Structural

What is 1,4-Phenylene diisocyanate?

Chemical properties

white to light yellow crystals

The Uses of 1,4-Phenylene diisocyanate

1,4-Phenylene diisocyanate has been used:

  • as croos-linking reagent to investigate the mechanism of enzyme immobilization on silanized surfaces
  • in the synthesis of dipodal bis-urea receptor, a selective receptor for hydrogen sulfate
  • in deposition of polyurea resists films via molecular layer deposition

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.

Flammability and Explosibility

Not classified

Properties of 1,4-Phenylene diisocyanate

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.
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)

Safety information for 1,4-Phenylene diisocyanate

Signal word Danger
Pictogram(s)
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
ghs
Environment
GHS09
GHS Hazard Statements H315:Skin corrosion/irritation
H317:Sensitisation, Skin
H319:Serious eye damage/eye irritation
H330:Acute toxicity,inhalation
H334:Sensitisation, respiratory
H411:Hazardous to the aquatic environment, long-term hazard
Precautionary Statement Codes P260:Do not breathe dust/fume/gas/mist/vapours/spray.
P273:Avoid release to the environment.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P302+P352:IF ON SKIN: wash with plenty of soap and water.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 1,4-Phenylene diisocyanate

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