Pentane-2,4-dione

Pentane-2,4-dione is an organic chemical compound with the molecular formula C5H8O2 and CAS number 123-54-6. Also known as acetylacetone, it is a β-diketone featuring two ketone functional groups separated by a methylene bridge. With a molecular weight of 100.12 g/mol, this compound serves as an important industrial intermediate and chelating agent in various chemical processes.

Pentane-2,4-dione is a colorless to pale yellow liquid at room temperature with a characteristic sweet, fruity odor. It exhibits keto-enol tautomerism, existing in equilibrium between its ketone and enol forms. The compound is moderately soluble in water and miscible with most organic solvents including alcohols, ethers, and hydrocarbons, making it versatile for various chemical applications.

Pentane-2,4-dione serves as a chelating agent for metal ions, making it valuable in analytical chemistry and metal purification processes. It is widely used as an intermediate in organic synthesis, particularly in pharmaceutical and agrochemical manufacturing. Additionally, it functions as a solvent, fuel additive, and precursor for various chemical compounds in industrial applications.

Pentane-2,4-dione must be handled with appropriate personal protective equipment including chemical-resistant gloves, safety goggles, and protective clothing. Work in well-ventilated areas or under fume extraction to avoid inhalation exposure. Keep away from ignition sources as it is classified as Flam. Liq. 3. Avoid skin and eye contact due to its Acute Tox. 4 classification.

Pentane-2,4-dione should be stored in tightly sealed containers in a cool, dry, well-ventilated area away from heat sources and ignition points. Keep containers away from direct sunlight and maintain temperatures below 25°C when possible. Store separately from strong oxidizing agents and bases. Ensure proper grounding and bonding when transferring to prevent static electricity buildup.

In case of skin contact with pentane-2,4-dione, immediately remove contaminated clothing and wash the affected area thoroughly with soap and water for at least 15 minutes. For eye contact, rinse immediately with plenty of clean water for 15 minutes and seek medical attention. If inhaled, move to fresh air immediately. In case of ingestion, do not induce vomiting and seek immediate medical attention.

Pentane-2,4-dione waste must be disposed of according to local and national hazardous waste regulations. Contact licensed waste disposal contractors for proper treatment and disposal. Do not discharge into drains, sewers, or waterways. Small quantities may be incinerated in approved facilities with adequate temperature control and emission treatment. Always consult local authorities for specific disposal requirements in your region.

Pentane-2,4-dione is classified under ADR Class 3 (Flammable Liquids), Packing Group III for transportation. It must be packaged in UN-approved containers with appropriate hazard labels and documentation. Transport vehicles must comply with ADR requirements for Class 3 substances, including proper ventilation, fire extinguishing equipment, and driver certification. Ensure packages are properly secured and labeled during transit.

Pentane-2,4-dione is regulated under the CLP Regulation with hazard classifications Flam. Liq. 3 and Acute Tox. 4, requiring appropriate labeling with GHS02 and GHS07 pictograms and 'Warning' signal word. It falls under REACH registration requirements for manufacturers and importers. The substance is not currently listed as a SVHC (Substance of Very High Concern) under REACH regulations.

Pentane-2,4-dione is available through OYSI, a reliable European distributor of specialty chemicals. OYSI provides high-quality pentane-2,4-dione with proper documentation, safety data sheets, and regulatory compliance for various industrial applications. As an established chemical distributor, OYSI ensures reliable supply chains and technical support for customers across Europe requiring this important chemical intermediate.