Adipic acid and azylic acid .. Manufacture and preparation of plastics such as polyamides, alkyd resins, polyamides and polyurethanes

Adipic acid (HOOC. [CH2] 4. COOH).
It is amorphous in the form of colorless needles, especially used to make some plastics such as polyamides.
Acaiic acid:
White amorphous powder, especially used in the preparation of plastics (alkyd resins, polyamides, polyurethanes) and in the preparation of other organic compounds.