Home Categories Flavors and fragrances 2,6-Dimethyl-4-heptanone
A3204612

2,6-Dimethyl-4-heptanone , 99% , 108-83-8

Synonym(s):
Cognac heptanone;Diisobutyl ketone;Di-iso-butyl ketone, 2,6-Dimethyl-4-heptanone, Isobutyl ketone;Isovalerone

CAS NO.:108-83-8

Empirical Formula: C9H18O

Molecular Weight: 142.24

MDL number: MFCD00008940

EINECS: 203-620-1

Update time: 2022-07-08

PRODUCT Properties

Melting point: -46 °C
Boiling point: 165-170 °C(lit.)
Density  0.808 g/mL at 25 °C(lit.)
vapor density  4.9 (vs air)
vapor pressure  1.7 mm Hg ( 20 °C)
FEMA  3537 | 2,6-DIMETHYL-4-HEPTANONE
refractive index  n20/D 1.412(lit.)
Flash point: 120 °F
storage temp.  Store below +30°C.
solubility  Miscible with ethanol, ether, carbon tetrachloride, chloroform, benzene and most organic liquids.
form  Liquid
Specific Gravity 0.810 (20/4℃)
color  Clear colorless to slightly yellow
Odor Sweet Pineapple-Banana-like fruity taste, but with a somewhat harsh chemical note.
Odor Type green
explosive limit 0.8-6.2%, 100°F
Water Solubility  0.05 g/100 mL
JECFA Number 302
BRN  1743163
Henry's Law Constant 6.36(x 10-4 atm?m3/mol) at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits TLV-TWA 150 mg/m3 (25 ppm); IDLH 1000 ppm.
Dielectric constant 9.9100000000000001
Stability: Stable. Flammable. Incompatible with strong oxidizing agents.
LogP 3.71 at 20℃
CAS DataBase Reference 108-83-8(CAS DataBase Reference)
NIST Chemistry Reference 4-Heptanone, 2,6-dimethyl-(108-83-8)
EPA Substance Registry System Diisobutyl ketone (108-83-8)

Description and Uses

2, 6-Dimethyl-4-heptanone, also known as diisobutyl ketone, belongs to the family of ketones, being a flavoring ingredient. It can also be used as the extraction solvent for the determination of ten trace metals (V, Cr, Fe, Co, Ni, Cu, Zn, Mo, Cd, Pb) in aqueous samples with plasma atomic emission spectrometry. Similar logic can also be applied to the measurement of phosphorus using 2, 6-dimethyl-4-heptanone as the extraction agent. It is also an important organic solvent widely used as industrial intermediates.

Diisobutyl ketone is used as a solvent fornitrocellulose, lacquers, and synthetic resins;in organic syntheses.

Safety

Symbol(GHS) 
GHS02,GHS07
Signal word  Warning
Hazard statements  H226-H335
Precautionary statements  P210-P233-P240-P241-P242-P243
Hazard Codes  Xi
Risk Statements  10-37
Safety Statements  24
OEB A
OEL TWA: 25 ppm (150 mg/m3)
RIDADR  UN 1157 3/PG 3
WGK Germany  1
RTECS  MJ5775000
Autoignition Temperature 745 °F
TSCA  Yes
HazardClass  3
PackingGroup  III
HS Code  29141990
Hazardous Substances Data 108-83-8(Hazardous Substances Data)
Toxicity LD50 orally in Rabbit: 5750 mg/kg LD50 dermal Rabbit 16000 mg/kg
IDLA 500 ppm

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