Melting point :165-166 °C (anhydrous)(lit.)
Boiling point :191.59°C (rough estimate)
alpha :-0.1～+0.1°(D/20℃)(c=5, H2O)
Density :1.4076 (rough estimate)
refractive index :1.5860 (estimate)
FEMA :3044 | TARTARIC ACID (D-, L-, DL-, MESO-)
solubility :Water (Sparingly)
form :Solid
pka :3.17, 4.91(at 25℃)
color :White to Off-White
PH :3.24(1 mM solution);2.62(10 mM solution);2.08(100 mM solution)
Water Solubility :560g/L(20 ºC)
JECFA Number :621
CAS DataBase Reference :147-73-9
EPA Substance Registry System :Butanedioic acid, 2,3-dihydroxy-, (2R,3S)-rel- (147-73-9)

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
Precautionary statements:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P280 Wear protective gloves/protective clothing/eye protection/face protection. P302+P352 IF ON SKIN: wash with plenty of soap and water. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing. P321 Specific treatment (see … on this label). P332+P313 IF SKIN irritation occurs: Get medical advice/attention. P362 Take off contaminated clothing and wash before reuse.