Melting point :-94 °C(lit.)
Boiling point :56 °C760 mm Hg(lit.)
Density :0.791 g/mL at 25 °C(lit.)
vapor density :2 (vs air)
vapor pressure :184 mm Hg ( 20 °C)
refractive index :n20/D 1.359(lit.)
Flash point :1 °F
storage temp. :no restrictions.
solubility :Citric Acid Monohydrate is very soluble in water, freely soluble in ethanol and sparingly soluble in ether.
form :Solid
pka :3.138, 4.76, 6.401
Specific Gravity :0.810 (20/4℃)
color :White
PH :1.85 (50g/l, H2O, 25℃)
Odor :Typical, practically odorless
Water Solubility :1630 g/L (20 oC) ;H2O: soluble 54% (w/w) at 10°C (Citric acid in water)
Sensitive :Hygroscopic
Merck :14,2326
BRN :4018641
Stability :Stable. Incompatible with oxidizing agents, bases, reducing agents, nitrates.
InChIKey :YASYEJJMZJALEJ-UHFFFAOYSA-N
CAS DataBase Reference :5949-29-1(CAS DataBase Reference)
NIST Chemistry Reference :Citric acid monohydrate(5949-29-1)
EPA Substance Registry System :1,2,3-Propanetricarboxylic acid, 2-hydroxy-, hydrate (1:1) (5949-29-1)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes 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. P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.