<p><b>銻酸鈉</b>，又名<b>偏銻酸鈉</b>，化學式NaSbO<sub>3</sub>。
</p>
<h2><span id=".E6.80.A7.E8.B4.A8"></span><span id="性质">性質</span></h2>
<p>白色粉末。不溶於冷水，在熱水中水解生成膠體。溶於硫化鈉、酒石酸溶液、濃硫酸，微溶於醇、銨鹽溶液，不溶於稀無機酸、稀鹼和乙酸。有毒。
</p>
<h2><span id=".E5.88.B6.E5.A4.87"></span><span id="制备">製備</span></h2>
<p>1、銻塊與硝酸鈉在空氣存在下加熱反應，得粗銻酸鈉。提純後得成品。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {4NaNO_{3}+4Sb+3O_{2}\rightarrow 4NaSbO_{3}+2NO+2NO_{2}}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {4NaNO_{3}+4Sb+3O_{2}\rightarrow 4NaSbO_{3}+2NO+2NO_{2}}}}</annotation>
  </semantics></math></span></span></dd></dl><p>2、五氯化銻水解，將沉澱出的銻化合物過濾並用過量鹼中和，得銻酸鈉。提純後得成品。
</p>
<dl><dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {SbCl_{5}+2H_{2}O\rightarrow SbO_{2}Cl\downarrow +4HCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {SbCl_{5}+2H_{2}O\rightarrow SbO_{2}Cl\downarrow +4HCl}}}</annotation>
  </semantics></math></span></span></dd>
<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {SbCl_{5}+3H_{2}O\rightarrow HSbO_{3}\downarrow +5HCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {SbCl_{5}+3H_{2}O\rightarrow HSbO_{3}\downarrow +5HCl}}}</annotation>
  </semantics></math></span></span></dd>
<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {SbO_{2}Cl+2NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow +NaCl}}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {SbO_{2}Cl+2NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow +NaCl}}}</annotation>
  </semantics></math></span></span></dd>
<dd><span><span><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\displaystyle {\rm {HSbO_{3}+NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow }}}">
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    <annotation encoding="application/x-tex">{\displaystyle {\rm {HSbO_{3}+NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow }}}</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>用作鈉離子的鑑定試劑，紡織品和塑料製品的阻燃劑，顯像管、光學玻璃和各種高級玻璃的澄清劑等。
</p>
**銻酸鈉**，又名**偏銻酸鈉**，化學式 NaSbO3。

## 性質

白色粉末。不溶於冷水，在熱水中水解生成膠體。溶於硫化鈉、酒石酸溶液、濃硫酸，微溶於醇、銨鹽溶液，不溶於稀無機酸、稀鹼和乙酸。有毒。

## 製備

1、銻塊與硝酸鈉在空氣存在下加熱反應，得粗銻酸鈉。提純後得成品。

　
: ${\rm {4NaNO_{3}+4Sb+3O_{2}\rightarrow 4NaSbO_{3}+2NO+2NO_{2}}}$

2、五氯化銻水解，將沉澱出的銻化合物過濾並用過量鹼中和，得銻酸鈉。提純後得成品。

　
: ${\rm {SbCl_{5}+2H_{2}O\rightarrow SbO_{2}Cl\downarrow +4HCl}}$

　
: ${\rm {SbCl_{5}+3H_{2}O\rightarrow HSbO_{3}\downarrow +5HCl}}$

　
: ${\rm {SbO_{2}Cl+2NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow +NaCl}}$

　
: ${\rm {HSbO_{3}+NaOH+2H_{2}O\rightarrow NaSbO_{3}\cdot 3H_{2}O\downarrow }}$

## 用途

用作鈉離子的鑑定試劑，紡織品和塑料製品的阻燃劑，顯像管、光學玻璃和各種高級玻璃的澄清劑等。
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