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78-84-2

Name Isobutyraldehyde
CAS 78-84-2
EINECS(EC#) 201-149-6
Molecular Formula C4H8O
MDL Number MFCD00006980
Molecular Weight 72.11
MOL File 78-84-2.mol

Chemical Properties

Appearance colourless liquid with an extremely unpleasant smell
Melting point  -65 °C (lit.)
Boiling point  63 °C (lit.)
density  0.79 g/mL at 25 °C(lit.)
vapor density  2.5 (vs air)
vapor pressure  66 mm Hg ( 4.4 °C)
FEMA  2220
refractive index  n20/D 1.374(lit.)
Fp  −40 °F
storage temp.  2-8°C
solubility  water: soluble11g/100mL at 20°C(lit.)
form  Liquid
color  Clear
Odor Pungent.
Stability: Stable. Refrigerate. Highly flammable. Incompatible with strong oxidizing agents, strong bases, strong acids, strong reducing agents.
explosive limit 1.6-11.0%(V)
Odor Threshold 0.00035ppm
Odor Type aldehydic
Water Solubility  75 g/L (20 ºC)
Sensitive  Air Sensitive
JECFA Number 252
Merck  14,5154
BRN  605330
LogP 0.77 at 25℃
CAS DataBase Reference 78-84-2(CAS DataBase Reference)
NIST Chemistry Reference Propanal, 2-methyl-(78-84-2)
EPA Substance Registry System 78-84-2(EPA Substance)

Safety Data

Hazard Codes  F,Xn
Risk Statements 
R11:Highly Flammable.
R22:Harmful if swallowed.
Safety Statements 
S16:Keep away from sources of ignition-No smoking .
S36/37:Wear suitable protective clothing and gloves .
S9:Keep container in a well-ventilated place .
S33:Take precautionary measures against static discharges .
S29:Do not empty into drains .
RIDADR  UN 2045 3/PG 2
WGK Germany  1
RTECS  NQ4025000
9-13-23
Autoignition Temperature 384 °F
TSCA  Yes
HazardClass  3
PackingGroup  II
HS Code  29121900
Hazardous Substances Data 78-84-2(Hazardous Substances Data)
Toxicity
LD50 orally in rats: 3.7 g/kg (Smyth)

Hazard Information

Material Safety Data Sheet(MSDS)

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