Melting point :70-80 °C
Boiling point :220°C
alpha :22.1 º (c=10, water)
Density :1.05 g/mL at 20 °C
bulk density :1000kg/m3
refractive index :22 ° (C=10, H2O)
storage temp. :Store at +5°C to +30°C.
solubility :H₂O: 1 M at 20 °C, clear, colorless
form :Solid
color :White semi-transparent
PH Range :6.0 - 8.5
Odor :Odorless
PH :7.0-8.5 (25℃, 50mg/mL in H2O)
optical activity :[α]20/D +28.0 to +30.0°
Water Solubility :630 g/L (20 ºC)
λmax :λ: 260 nm Amax: 0.026
λ: 280 nm Amax: 0.022 Merck :14,7670
BRN :6113568
InChI :1S/C4H6O6.K.Na.4H2O/c5-1(3(7)8)2(6)4(9)10;;;;;;/h1-2,5-6H,(H,7,8)(H,9,10);;;4*1H2/q;2*+1;;;;/p-2/t1-,2-;;;;;;/m1....../s1
InChIKey :VZOPRCCTKLAGPN-ZFJVMAEJSA-L
SMILES :O.O.O.O.[Na+].[K+].O[C@H]([C@@H](O)C([O-])=O)C([O-])=O
LogP :-1.426 (est)
CAS DataBase Reference :6381-59-5(CAS DataBase Reference)
NIST Chemistry Reference :Sodium potassium tartrate tetrahydrate(6381-59-5)

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. P271 Use only outdoors or in a well-ventilated area. P280 Wear protective gloves/protective clothing/eye protection/face protection.