Abstract The heating characteristics of aqueous electrolyte solutions (NaCl, KCl, CaCl2, NaBF4, and NaBr) of varying concentrations in ultrapure water by 2.45 GHz microwave radiation from a single-mode resonance microwave device and a semiconductor microwave generator were examined under conditions where the electric field (E-field) was dominant and where the magnetic field (H-field) dominated. Although magnetic field heating is not generally used in microwave chemistry, the electrolyte solutions were heated almost entirely by the microwaves’ H-field. The heating rates under H-field irradiation at the higher concentrations of electrolytes (0.125 M to 0.50 M) exceeded the rates under E-field irradiation. This inversion phenomenon in heating is described in terms of the penetration depth of the microwaves. On the other hand, the action of the microwave radiation on ethylene glycol containing an electrolyte differed from that observed for water under E-field and H-field conditions.

中文翻译：

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微波辐射的磁场分量对电解质水溶液的异常影响

摘要 通过单模共振微波装置和半导体微波发生器的 2.45 GHz 微波辐射，研究了超纯水中不同浓度的电解质水溶液（NaCl、KCl、CaCl2、NaBF4 和 NaBr）的加热特性。电场（E 场）占主导地位，而磁场（H 场）占主导地位。虽然磁场加热通常不用于微波化学，但电解质溶液几乎完全被微波的 H 场加热。在较高电解质浓度（0.125 M 至 0.50 M）下，H 场辐照下的加热速率超过 E 场辐照下的加热速率。加热过程中的这种反转现象用微波的穿透深度来描述。另一方面，