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Ethyleneimine
Ethyleneimine
- CAS:
- 151-56-4
- MF:
- C2H5N
- MW:
- 43.07
Properties
- Melting point:
- -78°C
- Boiling point:
- 56°C
- Density
- 0,83 g/cm3
- vapor pressure
- 160 at 20 °C, 250 at 30 °C (quoted, Verschueren, 1983)
- refractive index
- nD25 1.412
- Flash point:
- -11°C
- solubility
- miscible with water and virtually all organic solvents
- form
- Colorless liquid
- pka
- 8.01(at 25℃)
- Odor
- Fishy; ammoniacal.
- Water Solubility
- miscible
- Henry's Law Constant
- 1.33(x 10-7 atm?m3/mol) at 25 °C (quoted, Mercer et al., 1990)
- Dielectric constant
- 18.3（25℃）
- Exposure limits
- TLV-TWA (skin) 0.5 ppm (～1 mg/m3) (ACGIH, OSHA, and MSHA); Poten tial Human Carcinogen in the workplace (OSHA), Potential Carcinogen (NIOSH).
- Stability:
- Highly flammable. Reacts with a wide variety of materials.
- LogP
- -2.68--0.28 at 25℃
- CAS DataBase Reference
- 151-56-4(CAS DataBase Reference)
- NIST Chemistry Reference
- Ethylenimine(151-56-4)
- IARC
- 2B (Vol. 9, Sup 7, 71) 1999
- EPA Substance Registry System
- Aziridine (151-56-4)
Safety Information
- Symbol(GHS)
GHS02,GHS06,GHS08,GHS05,GHS09
- Signal word
- Danger
- Hazard statements
- H225-H300-H310-H314-H330-H340-H350-H411
- Hazard Codes
- F;T,T,F,N,T+
- Risk Statements
- 11-26/27/28-34-45-46-51/53
- Safety Statements
- 45-53-61
- RIDADR
- 1185
- HazardClass
- 6.1(a)
- PackingGroup
- I
- Hazardous Substances Data
- 151-56-4(Hazardous Substances Data)
- Toxicity
- LD50 orally in rats: 15 mg/kg (Smyth)
- IDLA
- 100 ppm
Use
Ethyleneimine is a colourless liquid with an ammonia-like smell or pungent odour. It is highly flammable and reacts with a wide variety of materials. Ethyleneimine is used in polymerisation products, as a monomer for polyethyleneimine and as a comonomer for polymers, for example, with ethylenediamine. Polymerised ethyleneimine is used in paper, textile chemicals, adhesive binders, petroleum, refining chemicals, fuels, lubricants, coating resins, varnishes, lacquers, agricultural chemicals, cosmetics, ion-exchange resins, photographic chemicals, colloid flocculants, and surfactants. Ethyleneimine readily polymerises, and it behaves like a secondary amine. Ethyleneimine is highly caustic, attacking materials such as cork, rubber, many plastics, metals, and glass except those without carbonate or borax. It polymerises explosively on contact with silver, aluminium, or acid. The activity of ethyleneimine is similar to that of nitrogen and sulphur mustards. Ethyleneimine is used as an intermediate in the production of triethylenemelamine.
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