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℃)
form :clear liquid
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.
InChIKey :AOHJOMMDDJHIJH-UHFFFAOYSA-N
LogP :-1.2 at 20℃
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)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H311 Toxic in contact with skin Acute toxicity,dermal Category 3 Danger P280, P302+P352, P312, P322, P361,P363, P405, P501 H314 Causes severe skin burns and eye damage Skin corrosion/irritation Category 1A, B, C Danger P260,P264, P280, P301+P330+ P331,P303+P361+P353, P363, P304+P340,P310, P321, P305+ P351+P338, P405,P501 H317 May cause an allergic skin reaction Sensitisation, Skin Category 1 Warning P261, P272, P280, P302+P352,P333+P313, P321, P363, P501 H334 May cause allergy or asthma symptoms or breathing difficulties if inhaled Sensitisation, respiratory Category 1 Danger P261, P285, P304+P341, P342+P311,P501
Precautionary statements:	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.