Butyraldehyde[2]
Overview
Butyraldehyde, also known as butanal, is a four-carbon aldehyde widely used as an intermediate in chemical synthesis. It is a key precursor in manufacturing plasticizers, synthetic resins, and solvents. The compound is produced industrially via hydroformylation of propylene. Due to its reactivity, butyraldehyde serves as a building block for various derivatives, including n-butanol and 2-ethylhexanol. Its applications span industries such as plastics, coatings, and pharmaceuticals, making it a vital chemical in B2B supply chains.
Physical and Chemical Properties
Butyraldehyde is a colorless, flammable liquid with a characteristic pungent odor. It has a low boiling point (75-76°C) and is miscible with many organic solvents, though it exhibits limited solubility in water (approximately 7% at 20°C). Chemically, it is highly reactive, particularly in aldol condensation and oxidation reactions. Its carbonyl group makes it a versatile intermediate for producing alcohols, acids, and amines. Careful handling is required due to its volatility and flammability (flash point: -7°C).
Main Applications
The primary use of butyraldehyde is in the production of plasticizers, such as dioctyl phthalate, which are essential for flexible PVC manufacturing. It also serves as a precursor for polyvinyl butyral (PVB), a resin used in safety glass interlayers. Additionally, it is employed in synthesizing flavors, fragrances, and pharmaceuticals. In agrochemicals, it acts as an intermediate for crop protection agents. Its derivatives are integral to coatings, adhesives, and rubber additives.
Safety and Storage
Butyraldehyde poses significant safety risks, including high flammability and irritation to eyes, skin, and respiratory systems. Proper storage requires sealed containers in cool, ventilated areas, away from oxidizers and ignition sources. Personal protective equipment (PPE) such as gloves, goggles, and respirators is mandatory during handling. Spills should be contained using inert absorbents, and disposal must comply with local regulations to prevent environmental contamination.
B2B Procurement Guide
When procuring butyraldehyde, prioritize suppliers with ISO or similar certifications to ensure quality and consistency. Key specifications include purity (typically ≥99%), water content, and absence of impurities like acids or peroxides. Bulk purchases often come in drums or tanker trucks, with pricing tiered by volume. Negotiate contracts that include safety data sheets (SDS) and reliable logistics for hazardous material transport. Seasonal demand fluctuations may affect availability.
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