| Identification | More | [Name]
2-Methylaziridine | [CAS]
75-55-8 | [Synonyms]
2-METHYLAZIRIDINE
PI
PROPYLENEIMINE
(R,S)-2-Methyl-aziridine
1,2-Propyleneimine
1,2-Propylenimine
1,2-propylenimine(2-methylaziridine)
2-Methylazacyclopropane
2-methyl-aziridin
2-Methylethylenimine
ai3-50325
Methylaziridine
Methylethylenimine
propilenimina
Propyleneimine, inhibited
propyleneimine,inhibited
Propylenimine
Rcra waste number P067
rcrawastenumberp067
2-Propylene Imine (PI) | [EINECS(EC#)]
200-878-7 | [Molecular Formula]
C3H7N | [MDL Number]
MFCD00005118 | [Molecular Weight]
57.09 | [MOL File]
75-55-8.mol |
| Chemical Properties | Back Directory | [Appearance]
Propyleneimine is a fuming, colorless, oily
liquid with a strong ammonia-like odor. | [Melting point ]
-65°C | [Boiling point ]
66°C | [density ]
0.8 | [refractive index ]
1.4125 | [Fp ]
-4°C | [storage temp. ]
-20°C | [solubility ]
soluble in No data available | [form ]
Flammable liquid | [pka]
pK1:8.18(+1) (25°C) | [Stability:]
Unstable-readily polymerises in the absence of an inhibitor. May polymerize vigorously or explosively in the presence of acids. Flammable. Incompatible with acids, oxidizing agents, quinones, carbonyl compounds, sulfonyl halides, some types of plastic, water. | [Water Solubility ]
miscible | [CAS DataBase Reference]
75-55-8(CAS DataBase Reference) | [IARC]
2B (Vol. 9, Sup 7, 71) 1999 | [NIST Chemistry Reference]
Aziridine, 2-methyl-(75-55-8) | [EPA Substance Registry System]
75-55-8(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
F;T+;N,T,F,N,T+ | [Risk Statements ]
R45:May cause cancer.
R11:Highly Flammable.
R26/27/28:Very Toxic by inhalation, in contact with skin and if swallowed .
R41:Risk of serious damage to eyes.
R51/53:Toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment . | [Safety Statements ]
S53:Avoid exposure-obtain special instruction before use .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
S61:Avoid release to the environment. Refer to special instructions safety data sheet . | [OEB]
B | [OEL]
TWA: 2 ppm (5 mg/m3) [skin] | [RIDADR ]
1921 | [RTECS ]
CM8050000 | [HazardClass ]
3.1 | [PackingGroup ]
I | [Safety Profile]
Confirmed carcinogen
with experimental carcinogenic data. Poison
by ingestion and skin contact. Moderately
toxic by inhalation. Mutation data reported.
Severe eye irritant. Implicated as a brain
carcinogen. A flammable liquid and very
dangerous fire hazard when exposed to heat
or flame; can react vigorously with oxidizing
materials. Polymerizes explosively on
exposure to acids or acid fumes. A storage
hazard. When heated to decomposition it
emits toxic fumes of NOx. | [Hazardous Substances Data]
75-55-8(Hazardous Substances Data) | [IDLA]
100 ppm |
| Hazard Information | Back Directory | [General Description]
A clear colorless liquid with an ammonia-like odor. Flash point 25°F. Toxic by ingestion, inhalation and through skin absorption. Less dense than water. Vapors are heavier than air. Produces toxic oxides of nitrogen during combustion. Under prolonged exposure to fire or heat the containers may rupture violently and rocket. Used as an organic intermediate. | [Reactivity Profile]
PROPYLENEIMINE, [INHIBITED] is subject to violent polymerization on contact with an acid. (The inhibitor is intended to prevent polymerization). Incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. Flammable gaseous hydrogen is generated in combination with strong reducing agents, such as hydrides. | [Air & Water Reactions]
Highly flammable. Soluble in water. Reacts slowly and non hazardously with water to form propanolamine or methylethanolamine. | [Hazard]
Flammable, dangerous fire risk. Toxic by
ingestion, inhalation, and skin absorption. Upper
respiratory tract irritant and kidney damage. Possi-
ble carcinogen.
| [Health Hazard]
Toxic after acute exposure. Can severely irritate eyes, skin, and lungs. | [Potential Exposure]
Propyleneimine is used in the modifi-
cation of latex surface coating resins; in the production of
polymers for use in the paper and textile industries as coat-
ings and adhesives. | [Fire Hazard]
Chemical is extremely flammable; vapors are heavier than air. Toxic oxides of nitrogen are produced during combustion. Avoid acids, strong oxidizers. Thermally unstable. Hazardous polymerization may occur. Contact with acid promotes violent polymerization. | [First aid]
If this chemical gets into the eyes, remove any
contact lenses at once and irrigate immediately for at least
15 minutes, occasionally lifting upper and lower lids. Seek
medical attention immediately. 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, includ-
ing 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 medi-
cal attention. Give large quantities of water and induce
vomiting. Do not make an unconscious person vomit. | [Shipping]
UN1921 Propyleneimine, stabilized, Hazard
Class: 3; Labels: 3-Flammable liquid, 6.1-Poisonous
materials. | [Incompatibilities]
Vapors or liquid form explosive mixture
with air. Incompatible with oxidizers (chlorates, nitrates,
peroxides, permanganates, perchlorates, chlorine, bromine,
fluorine, etc.); contact may cause fires or explosions. Keep
away from alkaline materials, strong bases, strong acids,
oxoacids, epoxides, water, carbonyl compounds; quinones,
sulfonyl halides. May explode in heat. Subject to violent
polymerization in contact with acids. Hydrolyzes in water
to form methylethanolamine. | [Chemical Properties]
colourless oily fuming liquid | [Chemical Properties]
Propyleneimine is a fuming, colorless, oily
liquid with a strong ammonia-like odor. | [Waste Disposal]
Consult with environmental
regulatory agencies for guidance on acceptable disposal
practices. Generators of waste containing this contaminant
(≥100 kg/mo) must conform with EPA regulations
governing storage, transportation, treatment, and waste
disposal. Controlled incineration (incinerator equipped
with a scrubber or thermal unit to reduce nitrogen oxides
emissions). | [Uses]
Intermediate in production of polymers,
coatings, adhesives, textiles, and paper
finishes. | [Uses]
The renal papillary toxin. | [Definition]
ChEBI: 2-Methylaziridine is a member of aziridines. | [Carcinogenicity]
2-Methylaziridine is reasonably anticipated to be a human carcinogen based on sufficient evidence of carcinogenicity from studies in experimental animals. | [Toxics Screening Level]
The initial threshold screening level (ITSL) for 1,2-propylenimine is 5 μg/m3 with an 8-hour averaging time. |
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