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1,2-Diaminopropane

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1,2-Diaminopropane Basic information

Product Name:
1,2-Diaminopropane
Synonyms:
  • 1,2-PROPYLENEDIAMINE
  • 1,2-PROPANEDIAMINE
  • 1,2-DIAMINOPROPANE
  • 12AP
  • PROPYLENE-1,2-DIAMINE
  • PROPYLENEDIAMINE
  • 1,2-Proplenediamine
  • 2,3-diaminopropane
CAS:
78-90-0
MF:
C3H10N2
MW:
74.12
EINECS:
201-155-9
Product Categories:
  • Building Blocks
  • Chemical Synthesis
  • Isotope Labelled Compounds
  • Nitrogen Compounds
  • Organic Building Blocks
  • Polyamines
  • Intermediates of Dyes and Pigments
  • straight chain compounds
  • Aliphatics
  • Amines
  • Isotope Labeled Compounds
  • top
Mol File:
78-90-0.mol
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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
pka
9.82(at 25℃)
PH
12 (100g/l, H2O, 20℃)
explosive limit
2.2-11.1%(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.
InChIKey
AOHJOMMDDJHIJH-UHFFFAOYSA-N
CAS DataBase Reference
78-90-0(CAS DataBase Reference)
NIST Chemistry Reference
1,2-Propanediamine(78-90-0)
EPA Substance Registry System
1,2-Diaminopropane (78-90-0)
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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 Temperature
680 °F
TSCA 
Yes
HazardClass 
8
PackingGroup 
II
HS Code 
29212900

MSDS

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1,2-Diaminopropane Usage And Synthesis

Chemical Properties

clear liquid

Uses

In conjunction with cupric sulfate it is a very sensitive reagent for mercury.

Uses

1,2-Diaminopropane was used as model precursor in the electron induced deposition of amorphous carbon nitride films.

Definition

ChEBI: 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 Description

A 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 Reactions

Very hygroscopic. Very soluble in water.

Reactivity Profile

1,2-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 Hazard

May 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 Hazard

Flammable/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 Profile

Moderately 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 Methods

Purify 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.]

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