| abstract |
(57) [Problem] To provide a disposable body warmer that can achieve an excellent heat effect and can use a heating agent after use as a fertilizer. In a disposable body warmer, the exothermic agent contains at least iron powder, calcium salt, and water, and the calcium salt is one of calcium chloride, calcium sulfate, or two of calcium chloride, calcium sulfate, and calcium citrate. A disposable body warmer comprising a mixture containing at least one species. |