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<script>window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdUrl":'http://www.39w.net.cn/article/show/sid/1581/id/362.html',"bdStyle":"0","bdSize":"16"},"share":{}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)];</script> </span> </div> <ul style=" margin:10px 0px;"> </ul> <div id="mopmpqjkmwgr" class="text editor">　　氫氧化鈣是一種無機(jī)化合物，化學(xué)式為Ca(OH)2，俗稱熟石灰或消石灰，是一種白色六方晶系粉末狀晶體。氫氧化鈣在空氣中變質(zhì)的原因主要有以下幾點(diǎn)：<br /> <p> 　　1.與空氣中的二氧化碳反應(yīng)：氫氧化鈣是一種堿，能與空氣中的二氧化碳發(fā)生化學(xué)反應(yīng)，生成碳酸鈣和水。這一反應(yīng)的化學(xué)方程式為：Ca(OH)_2+CO_2=CaCO_3↓+H_2O。生成的碳酸鈣是一種不溶于水的白色固體，這使得氫氧化鈣的性質(zhì)發(fā)生變化，從而變質(zhì)。 </p> <p style="text-align:center;"> <img src="/Upload/thumb_67317b17c2514.jpeg" width="500" height="500" title="山東氫氧化鈣" alt="山東氫氧化鈣" /> </p> 　　2.長期暴露導(dǎo)致的物理和化學(xué)變化：當(dāng)氫氧化鈣長期暴露在空氣中時(shí)，它可能會(huì)通過自由基鏈反應(yīng)導(dǎo)致分子鏈開裂或者過度交聯(lián)，使得其功能發(fā)生變化，導(dǎo)致變質(zhì)。<br /> 　　3.儲(chǔ)存條件不當(dāng)：氫氧化鈣的儲(chǔ)存條件對其穩(wěn)定性至關(guān)重要。如果儲(chǔ)存方法不正確，如未儲(chǔ)存在陰涼干燥的倉庫中，或者包裝損壞導(dǎo)致長時(shí)間暴露在空氣中，都可能加速氫氧化鈣的變質(zhì)過程。<br /> 　　4.環(huán)境因素：過高的紫外線、化學(xué)介質(zhì)、變價(jià)金屬離子以及高能輻射等因素也可能導(dǎo)致氫氧化鈣變質(zhì)。紫外線會(huì)破壞氫氧化鈣的結(jié)構(gòu)，使其產(chǎn)生游離基并加速氧化鏈的反應(yīng)過程。<br /> 　　綜上所述，氫氧化鈣在空氣中變質(zhì)的原因主要包括與空氣中的二氧化碳反應(yīng)、長期暴露導(dǎo)致的物理和化學(xué)變化、儲(chǔ)存條件不當(dāng)以及環(huán)境因素等。因此，為了保持氫氧化鈣的穩(wěn)定性，需要采取適當(dāng)?shù)膬?chǔ)存措施并避免長時(shí)間暴露在不利的環(huán)境中。<br /></div> <div id="mopmpqjkmwgr" class="page" style="clear:both;"> 上一條：沒有了 <br> 下一條： <a href="http://www.39w.net.cn/xinwen/jszl/show359.html">山東氫氧化鈣的行業(yè)現(xiàn)狀</a> <br> </div> <h4 class="related"><span style="font-weight:bold;height:30px;line-height:30px;font-size:13px; padding-left:10px">氫氧化鈣相關(guān)資料</span></h4> <ul class="related-list"> <li><a target="_blank" 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