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
EC Risk Phrase R 11 22 36/37
EC Safety Phrase 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

Odor Threshold Odor threshold 44.1 ppm
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)
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.
NFPA 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 127
Hazard class 3
Packing Group II  
USCG CHRIS Code MKE  
USCG Compatatibility Group 18 Ketones
HS Code 2914 19 90  
Std. Transport # 4909216  
IMO Pollution Category D