naatriumaatetrihüdraadi

Naatriumaatetrihüdraat, also known as sodium acetate trihydrate, is the hydrated crystalline form of sodium acetate. Its chemical formula is CH3COONa·3H2O. It is a salt formed from the reaction of acetic acid and sodium hydroxide. This compound is a white crystalline solid that is readily soluble in water. It is a common chemical compound with various applications.

One notable use of sodium acetate trihydrate is in hand warmers. When the solution inside the hand warmer is subjected to stress, such as bending, it initiates a crystallization process. This crystallization is exothermic, releasing heat. The process can be reversed by heating the hand warmer in boiling water, allowing the sodium acetate to re-dissolve and be reused.

Sodium acetate trihydrate also finds applications in the textile industry, where it is used as a mordant in dyeing and printing fabrics. It helps to fix dyes to the fabric, improving colorfastness. In addition, it can be used in concrete as an admixture to prevent efflorescence, which is the formation of white powdery deposits on the surface of concrete. It is also employed in food preservation and as a buffering agent in various chemical processes.