濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁矗?/title> <meta name="description" content="稀硫酸不具有氧化性,只體現(xiàn)酸性，而濃硫酸只體現(xiàn)強(qiáng)氧化性,不體現(xiàn)酸性，氧化性不強(qiáng)僅體現(xiàn)氫離子氧化，下面跟著吱客安全網(wǎng)小編一起來濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁矗?硫酸對(duì)人體的傷害是很大的，不僅僅是它的氣味是有毒的，由于它是強(qiáng)酸具有非常大的腐蝕性，硫酸根據(jù)濃度可以分為" /> <link href="http://www.xxzhm.cn/skin/css/global.css" rel="stylesheet" type="text/css" /> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head> <body> <h1><a href="http://www.xxzhm.cn/">国产自产拍精品小视频,久久精品国产免费观看,午夜男女爽爽视频在线观看,欧美亚洲综合另类中文字幕</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><tr id="i4pit"><font id="i4pit"><div id="i4pit"><tfoot id="i4pit"></tfoot></div></font></tr><li id="i4pit"><progress id="i4pit"><source id="i4pit"><optgroup id="i4pit"></optgroup></source></progress></li><legend id="i4pit"></legend><menu id="i4pit"><b id="i4pit"><pre 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class="newstext"> <p>稀硫酸不具有氧化性,只體現(xiàn)酸性，而濃硫酸只體現(xiàn)強(qiáng)氧化性,不體現(xiàn)酸性，氧化性不強(qiáng)僅體現(xiàn)氫離子氧化，下面跟著吱客安全網(wǎng)小編一起來濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁矗?/p><p style="text-align: center;"><img src="https://img.lm263.com/2023-01/36720774754817.jpg" alt="濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁矗? /> </p><p>硫酸對(duì)人體的傷害是很大的，不僅僅是它的氣味是有毒的，由于它是強(qiáng)酸具有非常大的腐蝕性，硫酸根據(jù)濃度可以分為稀硫酸和濃硫酸，濃硫酸具有很強(qiáng)的氧化性，那濃硫酸稀釋注意事項(xiàng)是什么呢？濃硫酸溶于水會(huì)放出大量的熱，水的密度比濃硫酸的密度小，所以如果將水倒入濃硫酸中水會(huì)浮在濃硫酸的上面而沸騰造成液滴飛濺．故稀釋濃硫酸時(shí)，要把濃硫酸緩緩地沿器壁注入水中，同時(shí)用玻璃棒不斷攪拌，以使熱量及時(shí)地?cái)U(kuò)散；切不可把水注入濃硫酸中，那么濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁矗?/p><h2>1、吸水性</h2><p>將一瓶濃硫酸敞口放置在空氣中，其質(zhì)量將增加，密度將減小，濃度降低，體積變大，這是因?yàn)闈饬蛩峋哂形裕芪娇諝庵械乃?/p><p>常做干燥劑。濃硫酸常做為洗氣裝置，濃硫酸熟知的除了能夠吸收空氣中的水外，還可以干燥中性和酸性氣體</p><p>例如中性氣體：CO、氧氣、氮?dú)夂退械南∮袣怏w</p><p>酸性氣體：HCI氣體、二氧化碳</p><p>濃硫酸不能用作堿性氣體（例如氨氣）的洗氣裝置，因?yàn)闈饬蛩崤c氨氣反應(yīng)。</p><p>濃硫酸不可干燥溴化氫、碘化氫，硫化氫等還原性氣體。</p><p>濃硫酸不能干燥二氧化硫，因?yàn)槎趸蛞兹苡跐饬蛩?/p><p>需要特別注意的是，硫酸不能干燥二氧化氮，因?yàn)镹O2溶于濃硫酸生成亞硝基硫酸等一些物質(zhì)</p><p>注：濃硫酸只有吸收游離水分子時(shí)才表現(xiàn)為吸水性，如吸收五水硫酸銅中的結(jié)晶水時(shí)是脫去的結(jié)晶水，不是吸水。此項(xiàng)應(yīng)特別注意，CuSO4·5H2O=CuSO4+5H2O是化學(xué)變化，表現(xiàn)脫水性，而不是吸水性。</p><h2>2、脫水性</h2><p>脫水性是濃硫酸的性質(zhì)，而非稀硫酸的性質(zhì)，即濃硫酸有脫水性且脫水性很強(qiáng)。</p><p>脫水性是濃硫酸的化學(xué)特性，物質(zhì)被濃硫酸脫水的過程是化學(xué)變化的過程，反應(yīng)時(shí)，濃硫酸按水分子中氫氧原子數(shù)的比（2∶1）奪取被脫水物中的氫原子和氧原子。</p><p>蔗糖、木屑、紙屑和棉花等物質(zhì)中的有機(jī)物，被脫水后生成了黑色的炭（炭化），并會(huì)產(chǎn)生二氧化硫，故實(shí)驗(yàn)一定要在通風(fēng)良好的情況下進(jìn)行，否則有一定危險(xiǎn)。</p><p>反應(yīng)過程分兩步，先是蔗糖C12H22O11在濃硫酸作催化劑作用下脫水，生成碳和水（試驗(yàn)后蔗糖會(huì)變黑，黑的的就是碳顆粒）：</p><p>C12H22O11==濃硫酸==12C+11H2O；</p><p>第二步，脫水反應(yīng)產(chǎn)生的大量熱讓濃硫酸和C發(fā)生反應(yīng)：</p><p>C+2H2SO4=加熱=CO2↑+2SO2↑+2H2O。</p><p>利用脫水性，能夠催化一些有機(jī)反應(yīng)。</p><p>乙烯實(shí)驗(yàn)室制法（濃硫酸作催化劑，脫水劑）CH3CH2OH=濃硫酸170℃=H2O + CH2=CH2↑</p><p>以上是吱客網(wǎng)小編介紹的濃硫酸稀釋性質(zhì)改變?cè)蚴鞘裁吹膬?nèi)容，如果大家還想了解更多關(guān)于腐蝕性物品的知識(shí)，那就繼續(xù)瀏覽本站生活危險(xiǎn)品知識(shí)庫中的內(nèi)容吧。</p> <div id="d0t4yjg" class="tags"><a href="/tags/etagid94071-0.html" target="_blank">硫酸稀釋</a> <a href="/tags/etagid94072-0.html" target="_blank">腐蝕性物品</a> <a href="/tags/etagid94073-0.html" target="_blank">生活危險(xiǎn)品</a> <a href="/tags/etagid94070-0.html" target="_blank">硫酸儲(chǔ)存</a> <a href="/tags/etagid94069-0.html" target="_blank">硫酸燒傷</a></div> </div> </article> <div id="zb9ty5d" class="clearfix"></div>  <section class="left_t aabox"> </section> <section class="right_t aabox"> </section> <div id="9b9dr55" class="clearfix"></div>  <section class="otherlink"> <h3 class="list">相關(guān)閱讀</h3> <ul class="list"> <li><a href="/zonghe/1677685986350774.html" target="_blank">華為mate20后臺(tái)運(yùn)行設(shè)置在哪里）</a></li><li><a href="/zonghe/1677648774285287.html" target="_blank">完整的灰姑娘的故事（完整灰姑娘的故事（中文版）</a></li><li><a href="/dongzhi/1677612450223665.html" 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