Pentan-2-one
C5H10O
pentan-2-one
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Identification
- CAS Number
- 107-87-9
- EC Number
- 203-528-1
- UN Number
- 1249
- PubChem CID
- 7895
Physical-chemical properties
- Molecular Formula
- C5H10O
- Molar Mass
- 86.13 g/mol
- IUPAC Name
- pentan-2-one
Chemical Identifiers
- InChI
- InChI=1S/C5H10O/c1-3-4-5(2)6/h3-4H2,1-2H3
- InChI Key
- XNLICIUVMPYHGG-UHFFFAOYSA-N
Overview
Pentan-2-one (CAS 107-87-9) is a ketone solvent with excellent dissolving properties and moderate volatility characteristics. This five-carbon methyl ketone, also known as methyl propyl ketone, represents an important industrial solvent widely utilized across various chemical manufacturing processes. With its molecular formula C5H10O and molecular weight of 86.13 g/mol, pentan-2-one exhibits favorable physical properties that make it suitable for numerous technical applications. The compound features a ketone functional group positioned at the second carbon of the pentane chain, giving it distinctive chemical reactivity and solvent characteristics. As a Class 3 flammable liquid under ADR transport regulations, pentan-2-one requires appropriate handling protocols during storage and transportation, though it presents relatively manageable safety considerations compared to more hazardous solvents. The substance demonstrates good thermal stability and miscibility properties, making it particularly valuable in formulation chemistry and extraction processes. Its moderate boiling point and evaporation rate provide optimal processing windows for industrial applications. Pentan-2-one finds primary application as a solvent in paint and coating formulations, where its dissolving power and evaporation characteristics contribute to proper film formation. The chemical industry also employs it in resin manufacturing and as an extraction medium for various organic compounds. Additionally, it serves as an intermediate in the synthesis of other chemical compounds, sometimes in processes that may also utilize related substances like 2-ethylbutyl acetate for specific esterification reactions. OYSI maintains reliable supply chains for pentan-2-one to support European industrial customers requiring consistent quality and technical support for their chemical processing needs.
Safety & Classification
No Hazard Classification
This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.
Transport (ADR)
| UN Number | 1249 |
| ADR Class | 3 |
| Packing Group | II |
| Tunnel Code | D/E |
| Proper Shipping Name | Methylpropylketon, rein |
| Marine Pollutant | No |
Frequently Asked Questions
What is pentan-2-one?
Pentan-2-one is an organic chemical compound belonging to the ketone family, with the molecular formula C5H10O and CAS number 107-87-9. It has a molecular weight of 86.13 g/mol and is also known as methyl propyl ketone or 2-pentanone. This compound is characterized by a carbonyl group (C=O) at the second carbon position of a five-carbon chain, making it a methyl ketone with distinctive chemical properties typical of ketones.
What are the physicochemical properties of pentan-2-one?
Pentan-2-one is a colorless liquid at room temperature with a characteristic sweet, fruity odor reminiscent of acetone or nail polish remover. It has moderate solubility in water and is miscible with most organic solvents including alcohols, ethers, and hydrocarbons. The compound has a boiling point around 102°C and a density lower than water. Its ketone functional group makes it polar, contributing to its solubility characteristics and reactivity patterns.
What is pentan-2-one used for?
Pentan-2-one is primarily used as an industrial solvent in various applications including paint thinners, lacquers, and coating formulations. It serves as an extraction solvent in chemical processes and as a cleaning agent for removing oils, resins, and other organic substances. The compound is also utilized in the production of flavors and fragrances due to its fruity odor, and as an intermediate in organic synthesis for manufacturing other chemical compounds.
How to handle pentan-2-one safely?
Pentan-2-one should be handled in well-ventilated areas or under fume extraction systems to prevent vapor inhalation. Wear appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Avoid contact with skin and eyes, and prevent ingestion. Keep away from heat sources, sparks, and open flames as it is flammable. Use non-sparking tools and ensure proper grounding when transferring the material to prevent static electricity buildup.
How to store pentan-2-one correctly?
Pentan-2-one should be stored in a cool, dry, well-ventilated area away from heat sources, ignition sources, and direct sunlight. Use tightly sealed containers made of compatible materials such as steel or appropriate plastics. Store away from strong oxidizing agents, acids, and bases that could react with the ketone. Maintain storage temperatures below 30°C and ensure adequate fire prevention measures are in place due to its flammable nature (ADR Class 3).
What to do in case of contact with pentan-2-one?
Pentan-2-one contact requires immediate action depending on exposure route. For skin contact, remove contaminated clothing and wash thoroughly with soap and water for at least 15 minutes. In case of eye contact, flush immediately with clean water for 15-20 minutes and seek medical attention. If inhaled, move to fresh air immediately and monitor breathing. For ingestion, do not induce vomiting and seek immediate medical attention. Always consult safety data sheets for specific first aid measures.
How to dispose of pentan-2-one appropriately?
Pentan-2-one disposal must comply with local, national, and European waste regulations. The compound should be treated as hazardous waste due to its flammable nature and cannot be disposed of down drains or in regular waste streams. Contact licensed waste disposal companies for proper collection and treatment. Small quantities may be incinerated in approved facilities, while larger volumes require specialized hazardous waste handling. Always check local environmental regulations before disposal.
How to transport pentan-2-one?
Pentan-2-one is classified under ADR (European Agreement on Dangerous Goods) as Class 3 (flammable liquids), Packing Group II, indicating medium hazard level. Transportation requires appropriate UN-approved packaging, proper labeling with flammable liquid hazard markings, and transport documents. Vehicles must be equipped with fire extinguishers and emergency equipment. Drivers require ADR training certification, and transport routes should avoid tunnels with restrictions for dangerous goods where applicable.
Is pentan-2-one subject to particular regulations?
Pentan-2-one is subject to standard European chemical regulations including REACH (Registration, Evaluation, Authorization of Chemicals) and CLP (Classification, Labelling and Packaging) regulations. It is not classified as a Substance of Very High Concern (SVHC) under REACH. The compound must comply with workplace safety regulations, environmental discharge limits, and transport regulations (ADR Class 3). Users must maintain safety data sheets and ensure proper risk assessments are conducted before use.
Where to buy pentan-2-one in Europe?
Pentan-2-one is available through OYSI, a European distributor of technical chemicals, serving customers across the European market. OYSI provides reliable supply chains for industrial customers requiring this solvent for various applications. As a specialized chemical distributor, OYSI ensures proper documentation, quality standards, and regulatory compliance for pentan-2-one supply. Contact OYSI directly for specific quantities, technical specifications, and delivery arrangements to your European location.
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Data Sources
Classification per CLP Regulation (EC) No 1272/2008. Data from ECHA and PubChem.