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Dehydroacetic acid

Chemical Properties

Melting point 111-113 °C (lit.)
Boiling point 270 °C (lit.)
Density  1.1816 (rough estimate)
vapor pressure  0.001 hPa (20 °C)
refractive index  1.4611 (estimate)
Flash point 157°C
storage temp.  Store below +30°C.
solubility  2g/l
form  Fine Crystalline Powder
pka 5.53±0.40(Predicted)
color  Light yellow or cream
PH 4 (2g/l, H2O, 20℃)
Water Solubility  500mg/L at 25℃
Merck  14,2865
BRN  6129
Stability Stable. Incompatible with oxidizing agents, bases, reducing agents.
InChIKey PGRHXDWITVMQBC-UHFFFAOYSA-N
LogP 0.78 at 20℃
CAS DataBase Reference 520-45-6(CAS DataBase Reference)
NIST Chemistry Reference Dehydroacetic Acid(520-45-6)
EPA Substance Registry System 3-Acetyl-6-methyl-2H-pyran-2,4(3H)-dione (520-45-6)

Safety Information

Hazard Codes  Xn
Risk Statements  22
Safety Statements  22-26
WGK Germany  1
RTECS  UP8050000
Autoignition Temperature 336 °C
TSCA  Yes
HS Code  29322980
Hazardous Substances Data 520-45-6(Hazardous Substances Data)
Toxicity LD50 orally in rats: 1000 mg/kg (Spencer)

MSDS

Usage And Synthesis

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