Methyl propyl ketone

  • 2-Pentanone
  • Ethyl acetone
  • MPK
  • Pentan-2-one
Formula
CH3CH2CH2COCH3
Structure
Description
Colorless liquid, characteristic ketone odor.
Uses
Synthetic flavor ingredient.

Registry Numbers and Inventories.
CAS
107-87-9
EC (EINECS/ELINCS)
203-528-1
EC Class
highly flammable
R 11 22 36/37
S 16 23 26 36/37/39
RTECS
SA7875000
RTECS class
Mutagen; Human Data; Primary Irritant
UN (DOT)
1249
Merck
12,6193
Beilstein/Gmelin
506058
Beilstein Reference
4-01-00-03271
Swiss Giftliste 1
G-2529
Canada DSL/NDSL
DSL
US TSCA
Listed
Austrailia AICS
Listed
New Zealand
Listed
Japan ENCS (MITI)
Listed
Korea ECL
Listed

Properties.
Formula
C5H10O
Formula mass
86.13
Melting point, °C
-78
Boiling point, °C
100
Vapor pressure, mmHg
35 (25 C)
Vapor density (air=1)
3
Saturation Concentration
3.6 x 10(4) ppm (3.6%) at 20 C (calculated)
Evaporization number
2.3 (Butyl acetate = 1)
Odor Threshold Odor threshold 44.1 ppm
Critical temperature
288
Critical pressure
36.24
Density
0.809 g/cm3 (20 C)
Solubility in water
60 g/L
Viscosity
0.46 cp (30 C)
Refractive index
1.3895 (20 C)
Dielectric constant
15 (20 C)
Partition coefficient, pKow
0.91
Heat of fusion
4.9 kJ/mol
Heat of vaporization
38.4 kJ/mol
Heat of combustion
-3099 kJ/mol

Hazards and Protection.
Storage
Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Flammables-area.
Handling
Wash thoroughly after handling. Use only in a well ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Avoid contact with heat, sparks and flame. Avoid ingestion and inhalation. Do not pressurize, cut, weld, braze, solder, drill, grind, or expose empty containers to heat, sparks or open flames.
Protection
Eyes: Wear appropriate protective eyeglasses or chemical safety goggles as described by OSHA's eye and face protection regulations in 29 CFR 1910.133 or European Standard EN166. Skin: Wear appropriate protective gloves to prevent skin exposure. Clothing: Wear appropriate protective gloves to prevent skin exposure.
Respirators
Follow the OSHA respirator regulations found in 29CFR 1910.134 or European Standard EN 149. Always use a NIOSH or European Standard EN 149 approved respirator when necessary.
Small spills/leaks
Absorb spill with inert material, (e.g., dry sand or earth), then place into a chemical waste container. Clean up spills immediately, using the appropriate protective equipment.
Disposal code
1
Stability
Stable under normal temperatures and pressures.
Incompatibilities
Strong oxidizing agents, bromine trifluoride.
Decomposition
Carbon monoxide, carbon dioxide.

Fire.
Flash Point,°C
7
Autoignition, °C
449
Upper exp. limit, %
8.2
Lower exp. limit, %
1.5
Fire fighting
Wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Use water spray to keep fire-exposed containers cool. Containers may explode in the heat of a fire. Extinguishing media: Water may be ineffective. In case of fire, use water spray, dry chemical, carbon dioxide, or alcohol-resistant foam.
Fire potential
A highly flammable liquid. A very dangerous fire hazard when exposed to heat or flame.
Hazards
Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers.
Combustion products
Irritating vapors and toxic gases, such as carbon dioxide and carbon monoxide, may be formed when involved in fire.
Health
2
 
Flammability
3
 
 
Reactivity
0
 

Health.
Exposure limit(s)
NIOSH REL: TWA 150 ppm (530 mg/m3) OSHA PEL: TWA 200 ppm (700 mg/m3) IDLH 1500 ppm
Poison_Class
4
Exposure effects
Prolonged or repeated skin contact may cause dermatitis. Prolonged or repeated exposure may cause nausea, dizziness, and headache.
   Ingestion
May cause irritation of the digestive tract. May be harmful if swallowed.
   Inhalation
May cause respiratory tract irritation. Vapors may cause dizziness or suffocation.
   Skin
May cause skin irritation.
   Eyes
May cause eye irritation.

First aid
 
   Ingestion
If victim is conscious and alert, give 2-4 cupfuls of milk or water. Never give anything by mouth to an unconscious person. Get medical aid immediately.
   Inhalation
Get medical aid immediately. Remove from exposure to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen.
   Skin
Get medical aid immediately. Flush skin with plenty of soap and water for at least 15 minutes while removing contaminated clothing and shoes.
   Eyes
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid immediately.

Transport.
UN number
1249
Response guide
Hazard class
3
Packing Group
II
 
USCG CHRIS Code
MKE
 
HS Code
2914 19 90
 
Std. Transport #
4909216
 
IMO Pollution Category
D