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1,2-Diaminopropane Basic information
1,2-Diaminopropane Chemical Properties
  • Melting point:-37 °C
  • Boiling point:120-122 °C(lit.)
  • Density 0.87 g/mL at 25 °C(lit.)
  • vapor density 2.6 (vs air)
  • vapor pressure 14 mm Hg ( 20 °C)
  • refractive index n20/D 1.446
  • Flash point:92 °F
  • storage temp. Flammables area
  • solubility H2O: very soluble
  • pka9.82(at 25℃)
  • PH12 (100g/l, H2O, 20℃)
  • explosive limit2.2-11.1%(V)
  • Water Solubility SOLUBLE
  • Sensitive Air Sensitive & Hygroscopic
  • Merck 14,7852
  • BRN 605274
  • Stability:Stable. Flammable. Incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides.
  • CAS DataBase Reference78-90-0(CAS DataBase Reference)
  • NIST Chemistry Reference1,2-Propanediamine(78-90-0)
  • EPA Substance Registry System1,2-Diaminopropane (78-90-0)
Safety Information
  • Hazard Codes C
  • Risk Statements 10-21/22-35-42/43
  • Safety Statements 26-37/39-45-36/37/39-23
  • RIDADR UN 2258 8/PG 2
  • WGK Germany 1
  • RTECS TX6650000
  • 3-10-23
  • Autoignition Temperature680 °F
  • TSCA Yes
  • HazardClass 8
  • PackingGroup II
  • HS Code 29212900
1,2-Diaminopropane Usage And Synthesis
  • Chemical Propertiesclear liquid
  • UsesIn conjunction with cupric sulfate it is a very sensitive reagent for mercury.
  • DefinitionChEBI: A diamine that is propane substituted by amino groups at positions 1 and 2. Propylenediamine is commonly used as a bidentate ligand in the formation of coordination complexes.
  • General DescriptionA colorless liquid with an ammonia-like odor. Flash point 160°F. Density 0.87 g / cm3. Boiling point 243°F. Strongly irritates skin and tissue.
  • Air & Water ReactionsVery hygroscopic. Very soluble in water.
  • Reactivity Profile1,2-Diaminopropane neutralizes acids in exothermic reactions to form salts plus water. May be incompatible with isocyanates, halogenated organics, peroxides, phenols (acidic), epoxides, anhydrides, and acid halides. May generate hydrogen, a flammable gas, in combination with strong reducing agents such as hydrides.
  • Health HazardMay cause toxic effects if inhaled or ingested/swallowed. Contact with substance may cause severe burns to skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.
  • Fire HazardFlammable/combustible material. May be ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.
  • Safety ProfileModerately toxic by ingestion, sktn contact, and subcutaneous routes. A corrosive irritant to eyes, skin, and mucous membranes. Dangerous fire hazard when exposed to heat, flames, oxidizers. To fight fire, use alcohol foam. When heated to decomposition it emits toxic fumes of NOx. Used as an intermedate in production of petroleum and polymer additives, and surfactants. See also AMINES.
  • Purification MethodsPurify the diamine by azeotropic distillation with toluene. Then distil it. Store it in a CO2 free atmosphere. [Horton et al. Anal Chem 27 269 1955, Beilstein 4 IV 1255.]
1,2-Diaminopropane Preparation Products And Raw materials
1,2-Diaminopropane(78-90-0)Related Product Information
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