Heat of Crystallization

Description

Phase Change, Latent Heat, Crystal Growth

 

Sodium Acetate (anhydrous): NaC₂H₃O₂

Sodium Acetate Trihydrate: NaC₂H₃O₂•3H₂0

Phase Change: Na⁺ + C₂H₃O₂^- + 3H₂0 → NaC₂H₃O₂•3H₂0 (solid) + 4 Kilocalories/mole

Safety Issues

Sodium acetate is used as a food preservative and is classified as a food grade material.

Component List

Availability: Available

References

Hiegel, G.A. (1980). Crystallization of Sodium Acetate, Journal of Chemical Education, 57(2), 152.

Farrell, K. and Dowden, E. (February, 1988). Tracking Temperatures With Your Computer. The Science Teacher, 55 2:42-43.

Menon, N. (1999). A simple demonstration of a metastable state. American Journal of Physics, 67 12:1109-110.