Melting point :170-172 °C(lit.)
alpha :12 º (c=20, H2O)
Boiling point :191.59°C (rough estimate)
Density :1.76
bulk density :1000kg/m3
vapor density :5.18 (vs air)
vapor pressure :<5 Pa (20 °C)
FEMA :3044 | TARTARIC ACID (D-, L-, DL-, MESO-)
refractive index :12.5 ° (C=5, H2O)
Flash point :210 °C
storage temp. :Store at +5°C to +30°C.
solubility :H2O: soluble1M at 20°C, clear, colorless
form :Solid
pka :2.98, 4.34(at 25℃)
color :White or colorless
PH :3.18(1 mM solution);2.55(10 mM solution);2.01(100 mM solution);
Odor :at 100.00 %. odorless
Odor Type :odorless
biological source :Vitis vinifera
optical activity :[α]20/D +13.5±0.5°, c = 10% in H2O
Water Solubility :1390 g/L (20 ºC)
Merck :14,9070
JECFA Number :621
BRN :1725147
Henry's Law Constant :4.9×10¹⁵ mol/(m³Pa) at 25℃, Burkholder et al. (2019)
Dielectric constant :35.9（-10℃）
Stability :Stable. Incompatible with oxidizing agents, bases, reducing agents. Combustible.
Cosmetics Ingredients Functions :FRAGRANCE
BUFFERING InChI :1S/C4H6O6/c5-1(3(7)8)2(6)4(9)10/h1-2,5-6H,(H,7,8)(H,9,10)/t1-,2-/m1/s1
InChIKey :FEWJPZIEWOKRBE-JCYAYHJZSA-N
SMILES :O[C@H]([C@@H](O)C(O)=O)C(O)=O
LogP :-1.43
CAS DataBase Reference :87-69-4(CAS DataBase Reference)
NIST Chemistry Reference :Butanedioic acid, 2,3-dihydroxy- [r-(r*,r*)]-(87-69-4)
EPA Substance Registry System :Tartaric acid (87-69-4)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H318 Causes serious eye damage Serious eye damage/eye irritation Category 1 Danger P280, P305+P351+P338, P310
Precautionary statements:	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.