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4-methyl-3-penten-2-one(11 products available)
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Mesityl oxide

  • CAS:141-79-7
  • MF:C6H10O
  • MW:98.14
  • EINECS:205-502-5
Melting point::
−53 °C(lit.)
Boiling point::
129 °C(lit.)
Density :
0.858 g/mL at 25 °C(lit.)
vapor pressure :
10.5 hPa (20 °C)
refractive index :
n20/D 1.442(lit.)
FEMA :
3368 | 4-METHYL-3-PENTEN-2-ONE
Flash point::
87 °F
storage temp. :
Store below +30°C.
solubility :
30g/l
form :
Liquid, Free Of Suspended Matter
color :
Clear
Specific Gravity:
0.86
Odor:
Strong; peppermint; honeylike.
explosive limit:
1.4-10.1%(V)
Water Solubility :
28 G/L (20 ºC)
Merck :
14,5908
JECFA Number:
1131
BRN :
1361550
Henry's Law Constant:
(x 10-6 atm?m3/mol): 4.01 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Dielectric constant:
15.4(20℃)
Exposure limits:
TLV-TWA 60 mg/m3 (15 ppm) (ACGIH), 10-h TWA 40 mg/m3 (10 ppm) (NIOSH); STEL 100 mg/m3 (25 ppm); IDLH 5000 ppm.
Stability::
Light Sensitive
Symbol(GHS) 

GHS02,GHS06
Signal word 
Danger
Hazard statements 
H226-H302+H312-H315-H319-H331-H335
Precautionary statements 
P210-P280-P301+P312-P303+P361+P353-P304+P340+P311-P305+P351+P338
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