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HomeProduct name list1,2-Diaminopropane

1,2-Diaminopropane

Synonym(s):1,2-Propanediamine;Propylenediamine

  • CAS NO.:78-90-0
  • Empirical Formula: C3H10N2
  • Molecular Weight: 74.12
  • MDL number: MFCD00008089
  • EINECS: 201-155-9
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2023-11-28 16:31:44
1,2-Diaminopropane Structural

What is 1,2-Diaminopropane?

Description

1,2-Diaminopropane is a colorless liquid that is very hygroscopic and miscible with water and most organic solvents. It forms azeotropes with butanol, 2-methylpropanol, and toluene and has a strong ammoniacal odor.

Chemical properties

clear liquid

The Uses of 1,2-Diaminopropane

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

The Uses of 1,2-Diaminopropane

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

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.

Production Methods

Because 1,2-dichloropropane does not react smoothly with ammonia, 1,2-diaminopropane is usually prepared by aminating a mixture of 2-amino-1-propanol and 1-amino-2-propanol, which is obtained from propylene oxide and ammonia. The process differs from corresponding processes for the production of diaminoethane in that the temperature in the catalytic amination is higher (190 – 230 ℃).

What are the applications of Application

1,2-Diaminopropane is used as an intermediate for crop-protection agents, e.g., Basfungin (BASF). Analogous to the ethylenediamine derivatives, the zinc dithiocarbamate propineb acts as a fungicide. Especially in the United States, derivatives of the amine are used as fuel and lubricant additives.

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.

Flammability and Explosibility

Flammable

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.]

Properties of 1,2-Diaminopropane

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
form  clear liquid
pka 9.82(at 25℃)
color  Colorless to Almost colorless
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
Dielectric constant 10.2(Ambient)
Stability: Stable. Flammable. Incompatible with strong oxidizing agents, acids, acid chlorides, acid anhydrides.
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)

Safety information for 1,2-Diaminopropane

Signal word Danger
Pictogram(s)
ghs
Flame
Flammables
GHS02
ghs
Corrosion
Corrosives
GHS05
ghs
Skull and Crossbones
Acute Toxicity
GHS06
ghs
Health Hazard
GHS08
GHS Hazard Statements H226:Flammable liquids
H302:Acute toxicity,oral
H311:Acute toxicity,dermal
H314:Skin corrosion/irritation
H317:Sensitisation, Skin
H334:Sensitisation, respiratory
Precautionary Statement Codes P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking.
P280:Wear protective gloves/protective clothing/eye protection/face protection.
P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.
P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.
P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Computed Descriptors for 1,2-Diaminopropane

InChIKey AOHJOMMDDJHIJH-UHFFFAOYSA-N

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