<p><b>連二亞硫酸鉀</b>是一種無機化合物，化學式為K<sub>2</sub>S<sub>2</sub>O<sub>4</sub>。它的UN編號為1929。它可由三仲丁基硼氫化鉀和二氧化硫在四氫呋喃中反應製得；它也可由連二亞硫酸鋅和氫氧化鉀反應得到。在氟化鉀存在下，它可以將硝酸鈾醯還原為K<sub>x</sub>U<sup>IV</sup>F<sub>y</sub>（如K<sub>7</sub>U<sub>6</sub>F<sub>31</sub>等）。它和硫化鉀、硫和鈦在650 °C反應，可以得到硫代鈦酸鹽K<sub>6</sub>Ti<sub>2</sub>OS<sub>6</sub>。</p>
<h2><span id=".E5.8F.82.E8.80.83.E6.96.87.E7.8C.AE"></span><span id="参考文献">參考文獻</span></h2>

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**連二亞硫酸鉀**是一種無機化合物，化學式為 K2S2O4。它的 UN 編號為 1929。它可由三仲丁基硼氫化鉀和二氧化硫在四氫呋喃中反應製得；它也可由連二亞硫酸鋅和氫氧化鉀反應得到。在氟化鉀存在下，它可以將硝酸鈾醯還原為 KxUIVFy（如 K7U6F31 等）。它和硫化鉀、硫和鈦在 650 °C 反應，可以得到硫代鈦酸鹽 K6Ti2OS6。

## 參考文獻
14293-73-3