Melting point :104-106 °C(lit.)
Boiling point :108-109°C
Density :1,65 g/cm³
vapor density :4.4 (vs air)
vapor pressure :<0.01 mm Hg ( 20 °C)
Flash point :157°C
storage temp. :Store at +5°C to +30°C.
solubility :H2O: soluble1M at 20°C, clear, colorless
form :Powder/Solid
color :Yellow to yellow-green
Specific Gravity :1.65
PH :~1.0 (25℃, 1M in H2O)
PH Range :6 - 8 at 25 °C
Water Solubility :138 g/L (20 ºC)
Sublimation :157 ºC
Merck :14,6911
BRN :3679436
Exposure limits :TLV-TWA for anhydrous acid 1 mg/m³ (ACGIH, MSHA, and OSHA); TLV-STEL 2 mg/m³ (ACGIH).
Stability :Stable. Incompatible with bases, acid chlorides, steel, silver, silver compounds, moisture. Avoid contact with metals.
InChIKey :GEVPUGOOGXGPIO-UHFFFAOYSA-N
CAS DataBase Reference :6153-56-6(CAS DataBase Reference)
NIST Chemistry Reference :Oxalic acid dihydrate(6153-56-6)
EPA Substance Registry System :Oxalic acid dihydrate (6153-56-6)

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:	P264 Wash hands thoroughly after handling. P264 Wash skin thouroughly after handling. P270 Do not eat, drink or smoke when using this product. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.