Overview
Butyraldehyde is a four-carbon aldehyde widely used as an intermediate in the chemical industry. It is produced via hydroformylation of propylene or oxidation of butanol. As a versatile building block, it serves as a precursor for alcohols, acids, and amines. Its reactivity stems from the carbonyl group, enabling condensation and oxidation reactions central to manufacturing processes.
Physical and Chemical Properties
Butyraldehyde is a low-boiling, highly flammable liquid with a characteristic rancid odor. Its volatility (vapor pressure 92 mmHg at 20°C) necessitates careful handling. The compound readily undergoes aldol condensation to form 2-ethyl-2-hexenal, a step in plasticizer alcohol production. It also oxidizes to butyric acid and reduces to n-butanol, making it valuable for derivative synthesis.
Main Applications
Over 70% of global butyraldehyde is converted to 2-ethylhexanol, a plasticizer alcohol for flexible PVC products like cables and flooring. Other uses include manufacturing synthetic resins (e.g., urea-formaldehyde), perfume fixatives, and rubber vulcanization accelerators. In agrochemicals, it synthesizes crop protection agents and plant growth regulators.
Safety and Storage
Butyraldehyde requires Class IB flammable liquid storage (flash point -7°C) in grounded containers with nitrogen blanketing to prevent peroxide formation. Workers must use chemical goggles, respirators, and flame-retardant clothing. Spills should be contained with inert absorbents—never use water due to vapor dispersion risks.
B2B Procurement Guide
Industrial buyers should prioritize suppliers with ISO 9001 certification and batch-wise GC purity analysis (≥99%). Bulk shipments typically use 20-ton isotanks or 200kg steel drums. For global procurement, check regional regulations like REACH or TSCA compliance documentation.
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