2-Pentanone , standardforGC,>99.0%(GC) , 107-87-9
Synonym(s):
2-Pentanone;Methyl propyl ketone
CAS NO.：107-87-9
Empirical Formula: C5H10O
Molecular Weight: 86.13
MDL number: MFCD00009400
EINECS: 203-528-1
PRODUCT Properties
| Melting point: | -78 °C (lit.) |
| Boiling point: | 101-105 °C (lit.) |
| Density | 0.809 g/mL at 25 °C (lit.) |
| vapor pressure | 27 mm Hg ( 20 °C) |
| FEMA | 2842 | 2-PENTANONE |
| refractive index | n |
| Flash point: | 45 °F |
| storage temp. | Store below +30°C. |
| solubility | water: soluble72.6g/L at 20°C (OECD Test Guideline 105) |
| form | Liquid |
| color | Colorless to Almost colorless |
| Odor | at 1.00 % in dipropylene glycol. sweet fruity ethereal wine banana woody |
| Relative polarity | 0.321 |
| explosive limit | 1.56-8.70%(V) |
| Odor Threshold | 0.028ppm |
| Odor Type | fruity |
| Water Solubility | 43 g/L (20 ºC) |
| λmax | λ: 330 nm Amax: 1.00 λ: 340 nm Amax: 0.10 λ: 350 nm Amax: 0.01 λ: 370-400 nm Amax: 0.005 |
| Merck | 14,6114 |
| JECFA Number | 279 |
| BRN | 506058 |
| Henry's Law Constant | 12.30 at 25.00 °C (headspace-GC, Straver and de Loos, 2005) |
| Exposure limits | TLV-TWA 700 mg/m3 (200 ppm); STEL
875 mg/m3 (250 ppm) (ACGIH). |
| Dielectric constant | 16.8（14℃） |
| Stability: | Stable. Highly flammable - note low flashpoint. Incompatible with strong bases, oxidizing agents, reducing agents. |
| LogP | 0.857 at 20℃ |
Description and Uses
MPK is a colorless to water-white liquid witha strong odor resembling acetone and ether. The odorthreshold is 7.7 ppm. Molecular weight = 86.15; Specificgravity (H2O:1) 5 0.81; Boiling point = 102℃; Freezing/Melting point 5 2 78℃; Vapor pressure 5 27 mmHg at20℃; Flash point = 7℃ (cc); Autoignition temperature 5452℃. Explosive limits: LEL 5 1.5%; UEL 5 8.2%.Hazard Identification (based on NFPA-704 M RatingSystem): Health 2, Flammability 3, Reactivity 0. Slightlysoluble in water; solubility 5 6%
2-Pentanone is used as a solvent for lacquers and surface coatings. It acts as a flavoring agent. It is also used as a solvent for cleaning and degreasing purpose. Further, it serves as an intermediate, paint additive and coating additive.
Safety
| Symbol(GHS) |   GHS02,GHS07 |
| Signal word | Danger |
| Hazard statements | H225-H302-H319 |
| Precautionary statements | P210-P233-P240-P241-P301+P312-P305+P351+P338 |
| Hazard Codes | F,Xn |
| Risk Statements | 11-22-36/37/38 |
| Safety Statements | 9-16-29-33-37/39-26 |
| OEB | A |
| OEL | TWA: 150 ppm (530 mg/m3) |
| RIDADR | UN 1249 3/PG 2 |
| WGK Germany | 1 |
| RTECS | SA7875000 |
| Autoignition Temperature | 941 °F |
| TSCA | Yes |
| HS Code | 2914 19 90 |
| HazardClass | 3 |
| PackingGroup | II |
| Toxicity | LD50 orally in rats: 3.73 g/kg (Smyth) |
| IDLA | 1,500 ppm |
