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Oxalic acid dihydrate Structure

Oxalic acid dihydrate

Chemical Properties

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)
FDA UNII 0K2L2IJ59O
NIST Chemistry Reference Oxalic acid dihydrate(6153-56-6)
EPA Substance Registry System Oxalic acid dihydrate (6153-56-6)

Safety

Symbol(GHS)
Signal wordDanger
Hazard statements H302+H312-H318
Precautionary statements P264-P270-P280-P301+P312-P302+P352+P312-P305+P351+P338
Hazard Codes  Xn,C
Risk Statements  21/22-41
Safety Statements  24/25-39-37-36-26
RIDADR  UN 3261 8/PG 3
WGK Germany  1
RTECS  RO2450000
TSCA  Yes
HazardClass  8
PackingGroup  III
HS Code  29171100
Toxicity LD50 orally in Rabbit: 375 mg/kg
NFPA 704:
1
2 0

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