| 摘要 |
<p>PURPOSE:To promote a rapid exothermic hydration reaction and not to leave non-reactive CaO and to prevent blowing out of excess water, which does not pertain to the exothermic reaction, by mixing specified volume of a water- absorptive material with a material generating heat upon reaction with a specified volume of water. CONSTITUTION:A vessel for heating foodstuffs comprises a vessel 2 filled with foodstuffs 1, a compound 4 of heating agent, a sealed water vessel 6 with inside water 5 and a vessel 3 containing these 3, 4, 5, 6. When unsealing the vessel 6, the compound 4 of exothermic agent reacts with the water. The compound 4 is a mixture of 100 parts in weight of the material generating heat upon reaction with water and 1-50 parts in weight of a hygroscopic material. The material generating heat upon reaction with water may be a material chiefly composed of ordinary CaO. The hygroscopic material is something like synthetic or natural zeolite, induced material from hydrophilic starch and cellulose or polyvinylalcohol copolymer. When unsealing the water vessel to discharge water, the hygroscopic material catches excess water to hold thereby and water and lime are prevented from blowing out of the vessel for heating foodstuffs.</p> |
