?!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "//www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> ag:q碳酔R与碳酸氢钠的区别 - 武汉市龙临化工有限公?/title> <meta name="keywords" content="ag," /> <link href="/template/NEST60028/lib/css.css" rel="stylesheet" type="text/css" /> <link href="/template/NEST60028/lib/style.css" rel="stylesheet" type="text/css" /> <link rel="canonical" href="//www.yozne.com/news/65.html"/> <meta name="robots" content="noarchive"> <meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> </head> <body> <div class="top_box"> <div class="top"> <div class="top_l">武汉市龙临化工有限公ؓ您免Ҏ?a href="/">粉h</a>?a href="/supply/">亚硒酔Rh</a>?a href="/news/">氧化?/a>{相关信息发布和最新资讯,敬请xQ?/div> <div class="top_r"> </div> </div> </div> <div class="clearfloat"></div> <div class="logo_box"> <div class="logo"> <div class="logo_l"> <img src="/uploads/logo/20181121120020.png" alt="武汉市龙临化工有限公? width="1000" height="100"/> </div> </div> </div> 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href='//www.yozne.com/news/65.html'>//www.yozne.com/news/65.html</a>   发布旉Q?019-04-02 </div> <div class="news_content"> <p> <a href="//www.yozne.com/">agѶ</a> www.yozne.com q碳酔R与碳酸氢钠的区别<br /> <br /> 生活中我们会遇到一?“长相”类似的物质Q例如:酸钠、碳酸氢钠、纯、碱面、苏打、小苏打{等Q这些容易؜淆的物质I竟有什么关p,我们又该如何区分呢?<br /> 酸钠(Na2CO3Q又叫纯、洗涤碱、苏打、碱面等Q呈现白色粉末或颗粒Ӟ它是一U重要的有机化工原料Q主要用于制作玻璃、肥皂、纸张及其它化学制品Qƈ且还q泛用于生活z、酸cM和以及食品加工等。碳酸氢钠(NaHCO3Q,俗称苏打。它也是一U工业化学用品,Z50℃以上开始逐渐分解生成酸钠、二氧化__270℃时完全分解?br /> <img src="/uploads/image/20190402/20190402150106_6448.jpg" alt="" /><br /> 所以,酸钠又U纯、碱面、苏打,它们是一U物质;酸氢钠又称苏打,它们是同一U物质。固体的酸钠与酸氢钠都是白色的颗_或晶体Q在化工、生zM都会用到它们。那么,二者该如何区分呢?<br /> 在化学中常用区分Ҏ有:<br /> 1.溶解度法。在两支试管中放入同{质量的两种Zq加水震荡,Z溶解完耗水多的是碳酸氢钠,耗水的是碳酔R?br /> 2.指示剂法。向用水完全溶解两种Z的两个试里各滴入两滴酚酞溶Ԍ产生反应后液体会变成U色Q红色较的酸氢钠Q较q是碳酔R?br /> 3.盐酸反应法。向放有两种Z的试内分别加入量盐酸Q快速生气体的是碳酸氢钠,~慢产生气体的是酸钠?br /> 4.热稳定法。加热两个不同固体的试管q将产生的气体通过澄清的石灰水Q石灰水变浑的是碳酸氢钠,不变的是酸钠?br /> <br /> 此外Q还有更便的区分ҎQ就是颜色观察法。白而发亮的是碳酸氢钠,白而略暗的是碳酔R?br /> <br /> 武汉市龙临化工有限公ؓ您免Ҏ供硒_h根{亚酸钠h根{氧化铒{相关信息发布和最新资讯,敬请x<br /></p> </div> <div 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