<p><b>硝酸鋅</b>是一種無機化合物，化學式為Zn(NO<sub>3</sub>)<sub>2</sub>，是易溶於水的無色晶體。
</p>


<h2><span id=".E6.80.A7.E8.B4.A8"></span><span id="性质">性質</span></h2>
<p>硝酸鋅是一種無色四方晶系結晶，易潮解，溶於水和乙醇，水溶液呈酸性。加熱至105～131°C失去6個結晶水，繼續加熱則放出氧化氮氣體，先轉變為鹼式鹽 <span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {\ Zn(NO_{3})_{2}\cdot 3Zn(OH)_{2}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {\ Zn(NO_{3})_{2}\cdot 3Zn(OH)_{2}}}}</annotation>
  </semantics></math></span></span>，然後形成氧化鋅。與有機物接觸可引起燃燒和爆炸。有毒！</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>由氧化鋅與硝酸按一定配比進行反應，加入鋅粉以置換其他金屬離子，再經抽濾、濾液酸化、蒸發濃縮、冷卻，得到硝酸鋅成品。</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {\ ZnO+2HNO_{3}\rightarrow Zn(NO_{3})_{2}+H_{2}O}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {\ ZnO+2HNO_{3}\rightarrow Zn(NO_{3})_{2}+H_{2}O}}}</annotation>
  </semantics></math></span></span></dd></dl><p>無水硝酸鋅可以通過鋅與四氧化二氮反應得到。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {\ 2Zn+3N_{2}O_{4}\rightarrow 2Zn(NO_{3})_{2}+N_{2}\uparrow }}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {\ 2Zn+3N_{2}O_{4}\rightarrow 2Zn(NO_{3})_{2}+N_{2}\uparrow }}}</annotation>
  </semantics></math></span></span></dd></dl><h2><span id=".E7.94.A8.E9.80.94"></span><span id="用途">用途</span></h2>
<p>用於機器和自行車零部件鍍鋅、配製鋼鐵磷化劑、織物染色時用作媒染劑、染料合成物品的保藏劑及乳膠凝結劑等。</p>
<h2><span id=".E5.8F.82.E8.80.83.E8.B5.84.E6.96.99"></span><span id="参考资料">參考資料</span></h2>

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**硝酸鋅**是一種無機化合物，化學式為 Zn (NO3)2，是易溶於水的無色晶體。

## 性質

硝酸鋅是一種無色四方晶系結晶，易潮解，溶於水和乙醇，水溶液呈酸性。加熱至 105～131°C 失去 6 個結晶水，繼續加熱則放出氧化氮氣體，先轉變為鹼式鹽 ${\rm {\ Zn(NO_{3})_{2}\cdot 3Zn(OH)_{2}}}$ ，然後形成氧化鋅。與有機物接觸可引起燃燒和爆炸。有毒！

## 製備

由氧化鋅與硝酸按一定配比進行反應，加入鋅粉以置換其他金屬離子，再經抽濾、濾液酸化、蒸發濃縮、冷卻，得到硝酸鋅成品。

　
: ${\rm {\ ZnO+2HNO_{3}\rightarrow Zn(NO_{3})_{2}+H_{2}O}}$

無水硝酸鋅可以通過鋅與四氧化二氮反應得到。

　
: ${\rm {\ 2Zn+3N_{2}O_{4}\rightarrow 2Zn(NO_{3})_{2}+N_{2}\uparrow }}$

## 用途

用於機器和自行車零部件鍍鋅、配製鋼鐵磷化劑、織物染色時用作媒染劑、染料合成物品的保藏劑及乳膠凝結劑等。

## 參考資料
10196-18-6