Overview
Glutaric acid is a linear, aliphatic dicarboxylic acid that occurs naturally in some metabolic pathways. As an important chemical intermediate, it's widely used in industrial applications. The compound is characterized by two carboxyl groups at the ends of a three-carbon chain, giving it versatile reactivity. First isolated in 1876, glutaric acid is now produced commercially through various synthesis routes including hydrocarbon oxidation. Its relatively simple structure and bifunctional nature make it valuable for creating more complex molecules in pharmaceuticals and specialty chemicals.
Physical and Chemical Properties
Glutaric acid typically appears as white crystals or crystalline powder with a slight acidic odor. It's moderately soluble in water (about 64 g/100 mL at 20°C) and shows good solubility in polar organic solvents. The acid exhibits typical carboxylic acid reactivity, forming salts, esters, and amides. The compound has pKa values of approximately 4.34 and 5.41, making it a relatively strong organic acid. It undergoes decarboxylation at elevated temperatures and can participate in various condensation reactions. The crystalline structure gives it good stability under normal storage conditions.
Main Applications
In the polymer industry, glutaric acid serves as a monomer for producing polyesters and polyamides. Its dibasic nature allows formation of long-chain polymers with desirable mechanical properties. These materials find use in coatings, adhesives, and biodegradable plastics. The pharmaceutical sector uses glutaric acid as a building block for active pharmaceutical ingredients (APIs), particularly in antiviral and cardiovascular drugs. It's also employed in the synthesis of plasticizers, lubricants, and corrosion inhibitors. Recent research explores its potential in energy storage applications.
Safety and Storage
Glutaric acid requires careful handling due to its irritant properties. Direct contact can cause skin and eye irritation, while inhalation of dust may irritate respiratory passages. Appropriate personal protective equipment (PPE) including gloves, goggles, and dust masks should be used. For storage, maintain the material in tightly sealed containers in a cool (below 30°C), dry environment away from strong bases and oxidizing agents. The compound is stable under recommended conditions but may absorb moisture from the air. Shelf life typically exceeds two years when properly stored.
B2B Procurement Guide
When sourcing glutaric acid, specify required purity levels which typically range from 98% to 99.5% for most industrial applications. Pharmaceutical grades may require higher purity and additional certifications. Consider ordering in appropriate quantities - available packaging options include 25kg bags, 500kg supersacks, or bulk shipments. Key procurement factors include reliable supply chain, batch-to-batch consistency, and proper documentation including certificates of analysis. For international shipments, verify compliance with local chemical regulations. Many suppliers offer technical support for application-specific questions.
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