| 摘要 |
<p>PURPOSE:To control an exothermic agent for instant heating of food and drink, etc., so as to maintain quiet boiling state until exothermic hydration reaction is over, by blending a water solution of diluted sulfuric acid, sulfate and chloride with an exothermic agent mainly containing quick lime. CONSTITUTION:(B) At least one kind of compound consisting of (i) diluted sulfuric acid having 0.5-15% water solution concentration, (ii) an anhydrous or water-containing sulfuric acid salt having >=5% solubility to water at 0 deg.C [preferably, e.g. metal salt or ammonium salt of pyrosulfurous acid, thiosulfuric acid, sulfuric acid, sulfurous acid and hydrogen sulfuric acid] and (iii) an anhydrous or water-containing chloride having >=5% solubility to water at 0 deg.C (preferably e.g. metal salt or ammonium salt) is added and blended to (A) an exothermic agent having 50-100wt.% quick lime content preferably at a ratio of 5-10% in water solution concentration.</p> |
