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Ethyleneimine

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Products Intro: Product Name:Ethyleneimine
CAS:151-56-4
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Products Intro: Product Name:aziridine
CAS:151-56-4
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Products Intro: Product Name:etheniMine
CAS:151-56-4
Purity:99% Package:5KG;1KG
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Products Intro: Product Name:Ethyleneimine
CAS:151-56-4
Purity:98% Remarks:B21088
Company Name: Hangzhou Yuhao Chemical Technology Co., Ltd  
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Products Intro: Product Name:aziridine
CAS:151-56-4
Ethyleneimine Basic information
Product Name:Ethyleneimine
Synonyms:aziridine(ethyleneimine);dihydro-1h-azirin;Dihydro-1H-azirine;Dihydroazirene;dihydroazirine;Dimethylenimine;EI;ENT-50324
CAS:151-56-4
MF:C2H5N
MW:43.07
EINECS:205-793-9
Product Categories:Pharmaceutical Intermediates
Mol File:151-56-4.mol
Ethyleneimine Structure
Ethyleneimine Chemical Properties
Melting point -78°C
Boiling point 56°C
density 0,83 g/cm3
refractive index nD25 1.412
Fp -11°C
pka8.01(at 25℃)
Water Solubility miscible
Stability:Highly flammable. Reacts with a wide variety of materials.
CAS DataBase Reference151-56-4(CAS DataBase Reference)
NIST Chemistry ReferenceEthylenimine(151-56-4)
EPA Substance Registry SystemAziridine(151-56-4)
Safety Information
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 Data151-56-4(Hazardous Substances Data)
ToxicityLD50 orally in rats: 15 mg/kg (Smyth)
MSDS Information
Ethyleneimine Usage And Synthesis
DescriptionEthyleneimine 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.
Chemical Propertiescolourless liquid with an ammonia-like smell
Chemical PropertiesEthyleneimine is a colorless liquid with an ammonia-like smell or pungent odor. It is highly flammable and reacts with a wide variety of materials. Ethyleneimine is used in polymerization products, as a monomer for polyethyleneimin, and as a comonomer for polymers, e.g., with ethylenediamine. Polymerized ethylenimine is used in paper, textile chemicals, adhesive binders, petroleum, refi ning chemicals, fuels, lubricants, coating resins, varnishes, lacquers, agricultural chemicals, cosmetics, ion-exchange resins, photographic chemicals, colloid fl occulants, and surfactants. Ethyleneimine readily polymerizes, and it behaves like a secondary amine. Ethyleneimine is highly caustic, attacking materials such as cork, rubber, many plastics, metals, and glas except those without carbonate or borax. It polymerizes explosively on contact with silver, aluminum, or acid. The activity of ethyleneimine is similar to that of nitrogen and sulfur mustards. Ethyleneimine is used as an intermediate in the production of triethylenemelamine. Polymerized ethyleneimine is used in paper, textile chemicals, adhesive binders, petroleum, refi ning chemicals, fuels, lubricants, coating resins, varnishes, lacquers, agricultural chemicals, cosmetics, ion-exchange resins, photographic chemicals, colloid fl occulants, and surfactants
Chemical PropertiesEthyleneimine is a colorless volatile liquid with an ammoniacal odor.
UsesIn the manufacture of triethylenemelamine.
General DescriptionA clear colorless liquid with an ammonia-like odor. Flash point 12°F. Less dense than water. Flammable over a wide range of vapor-air concentrations. Vapors irritate the skin, eyes, nose, and throat. May be toxic by prolonged inhalation, skin absorption, or ingestion. Carcinogenic. Vapors heavier than air. May polymerize exothermically if heated or contaminated. If the polymerization takes place inside a container, the container may rupture violently.
Air & Water ReactionsHighly flammable. Soluble in water.
Reactivity ProfileETHYLENEIMINE vapors are not inhibited and may form polymers in vents or flame arresters, resulting in stopping of the vents. Produces toxic oxides of nitrogen during combustion. Reacts with sodium hypochlorite and other chlorinating agents to give the explosive compound 1-chloroazidine. Decomposes if heated under pressure. or else hazardous polymerization may occur. Incompatible with silver or aluminum, which induce polymerization May polymerize explosively upon contact with acids. Polymerization is catalyzed by carbon dioxide [EPA, 1998].
HazardCorrosive, absorbed by skin, causes tumors; exposure should be minimized; a carcinogen. Dangerous fire and explosion hazard, flammable limits in air 3.6–46%. Toxic by skin absorption; possible carcinogen.
Health HazardEthyleneimine is classified as extremely toxic with a probable oral lethal dose of 5-50 mg/kg which is approximately 7 drops to 1 teaspoonful for a 70 kg (150 lb.) person. Ethyleneimine gives inadequate warning when over-exposure is by inhalation or skin absorption. It is a severe blistering agent, causing third degree chemical burns of the skin. Also, it has a corrosive effect on mucous membranes and may cause scarring of the esophagus. It is corrosive to eye tissue and may cause permanent corneal opacity and conjunctival scarring. Severe exposure may result in overwhelming pulmonary edema. Renal damage has been described. Hemorrhagic congestion of all internal organs has been observed.
Health HazardExposures to ethyleneimine cause adverse health effects and poisoning. Ingestion/swallowing, inhalation, or absorption through exposures to skin cause severe irritation, blisters, severe deep burns, and effects of sensitization. Ethyleninime is corrosive to the eye tissue and may cause permanent corneal opacity and conjunctival scarring, severe respiratory tract irritation, and effects of infl ammation in workers. Ethyleneimine is a severe blistering agent, causing third degree chemical burns of the skin. The symptoms of toxicity include, but are not limited to, cough, dizziness, headache, labored breathing, nausea, vomiting, tearing and burning of the eyes, sore throat, nasal secretion, bronchitis, shortness of breath, laryngeal edema, pronounced changes of the trachea and bronchi of lungs. Ethyleneimine with its corrosive effects cause injury to the mucous membranes and acute oral exposure may cause scarring of the esophagus in humans. The onset of symptoms and health effects caused by ethyleneimine depends on exposure concentration.
Fire HazardIrritating vapors are generated when heated. Vapor is heavier than air and may travel a considerable distance to a source of ignition and flash back. May polymerize in fires with evolution of heat and container rupture. Runoff to sewer may create fire or explosion hazard. Ethyleneimine vapors are not inhibited and may form polymers in vents or flame arresters, resulting in stopping of the vents. Toxic oxides of nitrogen are produced during combustion. Upon treatment with sodium hypochlorite, Ethyleneimine gives off the explosive compound 1-chloroazidine. Avoid acids, sodium hypochlorite. If heated under pressure, instability may result. Hazardous polymerization may occur. Avoid contact with silver or aluminum. Explosive polymerization may occur upon contact with acids. Polymerization is catalyzed by carbon dioxide.
Safety ProfileConfirmed carcinogen with experimental carcinogenic, neoplastigenic, tumorigenic, and teratogenic data. Other experimental reproductive effects. Poison by ingestion, skin contact, inhalation, and intraperitoneal routes. Human mutation data reported. A skin, mucous membrane, and severe eye irritant. An allergc sensitizer of skin. Causes opaque cornea, keratoconus, and necrosis of cornea (experimentally). Has been known to cause severe human eye injury. Drinking of carbonated beverages is recommended as an antidote to ths material in stomach. A very dangerous fire and explosion hazard when exposed to heat, flame, or oxidzers. Reacts violently with acids, aluminum chloride + substituted anilines, acetic acid, acetic anhydride, acrolein, acrylic acid, allyl chloride, CS2, Cl2, chlorosulfonic acid, epichlorohydrin, glyoxal, HCl, HF, HNO3, oleum, P-propiolactone, Ag, NaOCl, H2SO4, vinyl acetate. Reacts with chlorinating agents (e.g., sodum hypochlorite solution) to form the explosive 1 chloroaziridine. Reacts with silver or its alloys to form explosive silver derivatives. Dangerous; heat and/or the presence of catalytically active metals or chloride ions can cause a violent exothermic reaction. To fight fire, use alcohol foam, CO2, dry chemical. When heated to decomposition it emits acrid smoke and irritating fumes.
Potential ExposureEthyleneimine is used in production of binding agents; formation of plastics; and improving paper strength; in many organic syntheses; as an intermediate and monomer for fuel oil and lubricating refining. The polymerization products, polyethyleneimines, are used as auxiliaries in the paper industry and as flocculation aids in the clarification of effluents. It is also used in the textile industry for increasing wet strength, flame-, water-, shrinkproofing, and stiffening
First aidIf this chemical gets into the eyes, remove any contact lenses at once and irrigate immediately for at least 45 minutes, occasionally lifting upper and lower lids. Seek medical attention immediately since eye splashes can cause severe illness or death. If this chemical contacts the skin, remove contaminated clothing and wash immediately with soap and water. Seek medical attention immediately. If this chemical has been inhaled, remove from exposure, begin rescue breathing (using universal precautions, including resuscitation mask) if breathing has stopped and CPR if heart action has stopped. Transfer promptly to a medical facility. When this chemical has been swallowed, get medical attention. Give large quantities of water and induce vomiting. Do not make an unconscious person vomit. Medical observation is recommended for 24 to 48 hours after breathing overexposure, as pulmonary edema may be delayed. As first aid for pulmonary edema, a doctor or authorized paramedic may consider administering a drug or other inhalation therapy
ShippingUN1185 Ethyleneimine, stabilized, Hazard class: 6.1; Labels: 6.1-Poison Inhalation Hazard, 3-Flammable liquid, Inhalation Hazard Zone A. PGI
Purification MethodsRedistil it in an Ar or N2 atmosphere in a fume hood, and store it over KOH in sealed bottles in a refrigerator. Commercial aziridine has been dried over sodium and distilled from the metal through an efficient column before use [Jackson & Edwards J Am Chem Soc 83 355 1961, Wenker J Am Chem Soc 57 2328 1935]. It is a weaker base than Me2NH (pK2 5 10.87) but is caustic to the skin. It should not be inhaled, causes inflammation of the eyes, nose and throat, and one may become sensitized to it. It is soluble in H2O, has an ammoniacal smell and reacts with CO2. Pure aziridine is comparatively stable but polymerises in the presence of traces of H2O and is occasionally explosive in the presence of acids. CO2 is sufficiently acidic to cause polymerisation (forms linear polymers) which is not free radical promoted. It is stable in the presence of bases. The violet 2:1 Cu complex crystallises from EtOH containing a few drops of aziridine and adding Et2O, and has m 142o(dec). The picrate has m 142o. [O'Rourke et al. J Am Chem Soc 78 2159 1956.] It has also been dried over BaO and has been distilled from sodium under nitrogen. [Allen et al. Org Synth Coll Vol IV 433 1963, Beilstein 20 III/IV 1.] TOXIC.
IncompatibilitiesMay form explosive mixture with air. Ethyleneimine is a medium strong base. Contact with acids, aqueous acid conditions, oxidizers, aluminum, or carbon dioxide may cause explosive polymerization. Explosive silver derivatives may be formed with silver alloys e.g., silver solder). Self-reactive with heat or atmospheric carbon dioxide. May accumulate static electrical charges, and may cause ignition of its vapors. Attacks rubber, coatings, plastics, and chemically active metals. Ethyleneimine vapors are not inhibited and may form polymers in vents or flame arresters, resulting in stopping of the vents.
Waste DisposalControlled incineration; incinerator equipped with a scrubber or thermal unit to reduce nitrogen oxides emissions
PrecautionsDuring use of ethyleninime, students and occupational workers should wear protective equipment, such as gloves, safety glasses, and should have good ventilation. Ethyleninime should be handled as a carcinogen. Ethyleninime vapor/air mixtures are explosive and pose a risk of fi re and explosion on contact with acid(s), oxidants.
Tag:Ethyleneimine(151-56-4) Related Product Information
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