Isobutyric acid, also known as 2-methylpropionic acid, is an organic compound with chemical formula of C4H8O2. It is a colorless liquid, insoluble in water, and miscible in ethanol, ether, chloroform, glycerin, propylene glycol, etc. It is mainly used in organic synthesis.
Specification
|
Melting Point
|
-47 °C (lit.)
|
|
Boiling Point
|
153-154 °C (lit.)
|
|
Density
|
0.95 g/mL at 25 °C (lit.)
|
|
Refractive Index
|
n20/D 1.393(lit.)
|
|
Flash point
|
132 °F
|
|
Storage Condition
|
Store below +30°C.
|
|
Solubility
|
618g/l
|
|
Appearance
|
Liquid
|
|
Acidity Coefficient (pKa)
|
4.84(at 20℃)
|
|
Color
|
Clear colorless
|
|
Odor
|
0.0015ppm
|
|
PH
|
3.96(1 mM solution);3.44(10 mM solution);2.93(100 mM solution);
|
|
Water Solubility
|
210 g/L (20 ºC)
|
|
InChIKey
|
KQNPFQTWMSNSAP-UHFFFAOYSA-N
|
Safety Information
|
Dangerous Goods Sign
|
Xn
|
|
Hazard Category Code
|
21/22
|
|
Safety Instructions
|
23-36/37/39-24/25
|
|
Dangerous Goods Transportation No
|
UN 2529 3/PG 3
|
|
WGK Germany
|
1
|
|
RTECS
|
NQ4375000
|
|
F
|
13
|
|
TSCA
|
Yes
|
|
Hazard Level
|
3
|
|
Packaging Category
|
III
|
|
HS CODE
|
29156000
|
