Adipic Acid
CAS No.
124-04-9
CAS Nr.:
124-04-9
EINECS Name
Hexanedioic acid
EINECS Name:
Hexanedioic acid
EINECS No.
204-673-3
EINECS Nr.:
204-673-3
Synonym
Adipinsäure / 1,6-Hexandisäure / 1,4-Butandicarbonsäure / E 355 / 1,4-Butanedicarboxylic acid / 1,6-Hexanedioic Acid / Adipinic Acid / Acifloctin / Acinetten / Hexanedioic acid / E 355
Synonym:
Adipinsäure / 1,6-Hexandisäure / 1,4-Butandicarbonsäure / E 355 / 1,4-Butanedicarboxylic acid / 1,6-Hexanedioic Acid / Adipinic Acid / Acifloctin / Acinetten / Hexanedioic acid / E 355
Adipic acid, also known by CAS number 124-04-9, is a significant chemical raw material used in numerous industrial and commercial applications. This dicarboxylic acid is particularly known for its specific physical properties, making it indispensable in many fields.
Physical Properties of Adipic Acid
Adipic acid is a white crystalline solid with a molar mass of 146.14 g/mol. It has a melting point of approximately 152-154°C and a boiling point of 337.5°C. Adipic acid is moderately soluble in water but dissolves well in organic solvents such as acetone, methanol, and ethanol. Due to its chemical structure and purity, adipic acid is frequently used in the production of polymers and other chemical products.
Applications of Adipic Acid
Adipic acid is an essential raw material in the production of nylon, particularly nylon-6,6. Through its reaction with hexamethylenediamine, a polyamide is formed, which is widely used in the textile industry. Nylon-6,6 is known for its high strength, elasticity, and abrasion resistance, making it ideal for the production of textiles, carpets, and technical fibers.
In the plastics industry, adipic acid is used to produce plasticizers. These plasticizers are added to increase the flexibility and durability of plastics. Particularly in the production of PVC (polyvinyl chloride), adipic acid-based plasticizers play a crucial role as they improve the processability and mechanical properties of the final products.
Adipic acid is also used in the food industry as an acidulant and buffering agent. It is commonly used in beverages, jellies, and baked goods to regulate pH levels and achieve the desired acidity. Its stability and solubility make it an ideal additive for a variety of food products.
Adipic acid is used in the production of polyurethanes, which are found in foams, coatings, elastomers, and adhesives. The reaction of adipic acid with diisocyanates results in the formation of polyurethane, known for its versatility and high performance. Polyurethanes made from adipic acid are used in the automotive industry, construction, and furniture manufacturing.
In summary, adipic acid is an indispensable raw material in many industrial sectors due to its unique physical properties and versatility. Its ability to serve as a raw material for nylon, plasticizers, food additives, and polyurethane makes it a critical component in modern industrial production.
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