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class="content">  <div class="news_detail"> <h1 class="title">一起來了解工業硫酸有哪些特性</h1> <div class="info_title clearfix"> <h3 class="title_bar"> 發布日期：<span>2022-10-20</span> 作者：<span></span> 點擊：<span><script src="http://www.trdpw.com/data/include/newshits.php?id=434"></script></span> </h3> <div class="share">  <div class="bdsharebuttonbox"> <a href="#" class="bds_more" data-cmd="more"></a> <a href="#" class="bds_qzone" data-cmd="qzone"></a> <a href="#" class="bds_tsina" data-cmd="tsina"></a> <a href="#" class="bds_tqq" data-cmd="tqq"></a> <a href="#" class="bds_renren" data-cmd="renren"></a> <a href="#" class="bds_weixin" data-cmd="weixin"></a> </div> <script> window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};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>  </div> </div> <div class="content"><p style="line-height: 3em; text-indent: 2em;"><strong>一起來了解工業硫酸有哪些特性</strong></p><p style="line-height: 3em; text-indent: 2em;">工業硫酸（化學式：H2SO4），硫的最重要的含氧酸。無水硫酸為無色油狀液體，10.36℃時結晶，通常使用的是它的各種不同濃度的水溶液，用塔式法和接觸法制取。前者所得為粗制稀硫酸，質量分數一般在75%左右；后者可得質量分數98.3%的濃硫酸，沸點338℃，相對密度1.84。</p><p style="line-height: 3em; text-indent: 2em;">硫酸是一種最活潑的二元無機強酸，能和絕大多數金屬發生反應。高濃度的硫酸有強烈吸水性，可用作脫水劑，碳化木材、紙張、棉麻織物及生物皮肉等含碳水化合物的物質。與水混合時，亦會放出大量熱能。其具有強烈的腐蝕性和氧化性，故需謹慎使用。是一種重要的工業原料，可用于制造肥料、藥物、炸藥、顏料、洗滌劑、蓄電池等，也廣泛應用于凈化石油、金屬冶煉以及染料等工業中。常用作<a href='http://www.trdpw.com/product/cpfle744/' target='_blank' class='key_tag'><font color=#2086ee><strong>化學試劑</strong></font></a>，在有機合成中可用作脫水劑和磺化劑。</p><p style="line-height: 3em; text-indent: 2em;"><strong><a href='http://www.trdpw.com/' target='_blank' class='key_tag'><font color=#2086ee><strong>工業制硫酸</strong></font></a>介紹物流性質：</strong></p><p style="line-height: 3em; text-indent: 2em;">純硫酸一般為無色油狀液體，密度1.84 g/cm3，沸點337℃，能與水以任意比例互溶，同時放出大量的熱，使水沸騰。加熱到290℃時開始釋放出三氧化硫，最終變成為98.54%的水溶液，在317℃時沸騰而成為共沸混合物。硫酸的沸點及粘度較高，是因為其分子內部的氫鍵較強的緣故。由于硫酸的介電常數較高，因此它是電解質的良好溶劑，而作為非電解質的溶劑則不太理想。硫酸的熔點是10.371℃，加水或加三氧化硫均會使凝固點下降。</p><p style="line-height: 3em; text-align: center; text-indent: 0em;"><img src="/data/upload/image/20220922/1663833138621946.jpg" alt="工業硫酸" width="500" height="500" border="0" vspace="0" title="工業硫酸" style="width: 500px; height: 500px;"/></p><p style="line-height: 3em; text-indent: 2em;"><strong>濃度的差異：</strong></p><p style="line-height: 3em; text-indent: 2em;">盡管可以制出濃純凈的硫酸，并且室溫下是無限穩定的（所謂的分解成恒沸物的反應發生在接近沸點的高溫之下），但是純硫酸凝固點過高（283.4K），所以為了方便運輸通常制成98%硫酸，故一般所說的“高濃度硫酸”指的便是濃度為98%的硫酸。另外，硫酸在不同的濃度下有不同的應用，以下為一些常見的濃度級別。硫酸亦可被制成其他形態。例如，將高濃度的SO3通入硫酸可制成發煙硫酸，有關發煙硫酸的濃度，人們通常以SO3的百分比作準或者是H2SO4的百分比作準，兩者均可。一般所稱的“發煙硫酸”的濃度為45%（含109%H2SO4）或65%（含114.6% H2SO4）。當SO3與H2SO4比例為1:1產物為焦硫酸（H2S2O7），焦硫酸為固體，熔點為36℃。</p><p style="line-height: 3em; text-indent: 2em;"><strong>極性與導電性：</strong></p><p style="line-height: 3em; text-indent: 2em;">純硫酸是一種極性非常大的液體，其介電系數大約為100。因為它分子與分子之間能夠互相質子化對方，造成它極高的導電性，這個過程被稱為質子自遷移。發生的過程是：2H2SO4?H3SO4++ HSO4-（主要）2H2SO4?H3O++ HS2O7-H3O++H2SO4?H3SO4++ H2OHS2O7-+H2SO4?HSO4-+ H2S2O7</p><p style="line-height: 3em; text-indent: 2em;"><strong>化學性質：</strong></p><p style="line-height: 3em; text-indent: 2em;">純硫酸加熱至290℃分解放出部分三氧化硫，直至酸的濃度降到98.3%為止，這時硫酸為恒沸溶液，沸點為338°C。無水硫酸體現酸性是給出質子的能力，純硫酸仍然具有很強的酸性，98%硫酸與純硫酸的酸性基本上沒有差別，而溶解三氧化硫的發煙硫酸是一種超酸體系，酸性強于純硫酸，但是廣泛存在一種誤區，即稀硫酸的酸性強于濃硫酸，這種想法是錯誤的。的確，稀硫酸第一步電離完全，產生大量的水合氫離子H3O+；但是濃硫酸和水一樣，自身自偶電離會產生一部分硫酸合氫離子H3SO4+，正是這一部分硫酸合質子，導致純硫酸具有非常強的酸性，雖然少，但是酸性卻要比水合質子強得多，所以純硫酸的哈米特酸度函數高達-12.0。</p><p style="line-height: 3em; text-indent: 2em;">有想要了解<a href='http://www.trdpw.com/' target='_blank' class='key_tag'><font color=#2086ee><strong>硫酸價格</strong></font></a>的話，可以隨時與我們聯系。</p><p><br/></p></div> <h3 class="tag">本文網址：http://www.trdpw.com/news/434.html </h3> <div class="page">上一篇：<a href="http://www.trdpw.com/news/433.html">簡單介紹現代工業硫酸生產技術的主要特點有哪些</a><br />下一篇：<span><a href="http://www.trdpw.com/news/436.html">分享工業硫酸主要用途在哪里</a></span></div> </div> <div class="relateproduct relate"><h4>最近瀏覽：</h4> <div class="content"> <ul id="relate_n" class="news_list clearfix"> </ul> </div> </div>  <div class="relate_list"> <div class="relateproduct relate"><h4>相關產品：</h4> <div class="content"> 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