| 摘要 |
PURPOSE:To prevent lowering in melting point and latent heat of sodium acetate trihydrate in repeating thermal cycling comprising fusion and solidification for a long period of time, by adding a small amount of lithium nitrate to a heat storing material composed mainly of sodium acetate trihydrate. CONSTITUTION:An intended heat storing material can be obtd. by adding lithium nitrate to a heat storing material composed mainly of sodium acetate trihydrate. The amount of lithium nitrate added is preferably about 1-5wt% based on sodium acetate trihydrate. Thus, there can be obtd. a latent heat-storing material having stable heat storing and heat dissipation characteristics and capable of preventing occurrence of such a phenomenon that, in repeating thermal cycling comprising fusion and solidification, the crystal of sodium acetate anhydride is gradually deposited and grows into large crystals. A gelling agent such as carboxymethylcellulose, supercooling inhibitor, etc. may optionally be added to sodium acetate tetrahydrate besides lithium nitrate. |
