Melting point :156-161 °C(lit.)
Boiling point :227.71°C (rough estimate)
Density :1.3744 (rough estimate)
refractive index :1.5860 (estimate)
storage temp. :Store below +30°C.
solubility :H₂O: 50 mg/mL, clear
form :Fine Crystalline Powder
pka :pK1 (30°): 3.49; pK2: 4.58; pK3: 5.83
color :Off-white to light brown
Water Solubility :Soluble in water (500 mg/ml at 18°C), methanol, and ether (slightly).
Merck :14,9622
BRN :1783567
LogP :-1.420 (est)
CAS DataBase Reference :99-14-9(CAS DataBase Reference)
EPA Substance Registry System :1,2,3-Propanetricarboxylic acid (99-14-9)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P405 Store locked up.