Home Categories Organic Chemistry 4-Methyl-2-pentanone
A5408912

4-Methyl-2-pentanone , AR,99.0% , 108-10-1

Synonym(s):
MIBK;Methyl isobutyl ketone;4-Methyl-2-pentanone;MIK;Isobutyl methyl ketone

CAS NO.:108-10-1

Empirical Formula: C6H12O

Molecular Weight: 100.16

MDL number: MFCD00008938

EINECS: 203-550-1

Update time: 2022-07-08

PRODUCT Properties

Melting point: -80 °C (lit.)
Boiling point: 117-118 °C
Density  0.801 g/mL at 25 °C (lit.)
vapor density  3.5 (vs air)
vapor pressure  15 mm Hg ( 20 °C)
refractive index  n20/D 1.395(lit.)
FEMA  2731 | 4-METHYL-2-PENTANONE
Flash point: 56 °F
storage temp.  Store at +5°C to +30°C.
solubility  water: soluble20g/L, soluble in alcohol, miscible with oils. Soluble in Propylene glycol and Glycerin.
form  Liquid
color  APHA: ≤15
Specific Gravity 0.80
Odor Pleasant; mild, characteristic; sharp; non-residual; ketonic.
explosive limit 1.2-8%, 93°F
Odor Threshold 0.17ppm
Odor Type green
Water Solubility  17 g/L (20 ºC)
λmax λ: 335 nm Amax: 1.00
λ: 340 nm Amax: 0.50
λ: 360 nm Amax: 0.15
λ: 380 nm Amax: 0.02
λ: 400 nm Amax: 0.01
JECFA Number 301
Merck  14,5207
BRN  605399
Henry's Law Constant 2.56 at 25 °C (batch stripping method-GC, Kim et al., 2000)
Exposure limits TLV-TWA 205 mg/m3 (50 ppm); STEL 300 mg/m3 (75 ppm) (ACGIH); IDLH 3000 ppm (NIOSH).
Dielectric constant 13.0(Ambient)
Stability: Volatile
LogP 1.3-1.9 at 20℃

Description and Uses

4-Methyl-2-pentanone has a pleasant odor. May be prepared by hydrogenation of mesityl oxide over Ni at 160 - 190°C; also by oxidation of methyl isobutyl carbinol.

In paints, glues, and cleaning agents; used in the plastic and petrol industries

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Danger
Hazard statements  H225-H319-H332-H335
Precautionary statements  P210-P233-P240-P241-P304+P340+P312-P305+P351+P338
Hazard Codes  F,Xn,T
Risk Statements  11-20-36/37-66-39/23/24/25-23/24/25
Safety Statements  9-16-29-45-36/37-7
RIDADR  UN 1245 3/PG 2
OEB A
OEL TWA: 50 ppm (205 mg/m3), STEL: 75 ppm (300 mg/m3)
WGK Germany  1
RTECS  SA9275000
Autoignition Temperature 840 °F
TSCA  Yes
HS Code  2914 13 00
HazardClass  3
PackingGroup  II
Toxicity LD50 orally in rats: 2.08 g/kg (Smyth)
IDLA 500 ppm

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