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Heat of Crystallization

PIRA DCS: 4C-20.60

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.
Heat of Crystallization
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