化学系碱的性质

1、碱及其碱的性质Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.1本课的难点了解常见的碱知道它的一些简单性质Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.2本课的重点碱的一些性质碱的一些简单用途Evaluation only.Created with Aspose.Slides for

2、.NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.3主要内容常见的碱有：氢氧化钠 和 氢氧化钙。氢氧化钠有强烈的腐蚀性，所以，它又叫苛性钠，火碱和烧碱。 如果不慎将碱液沾到皮肤上，要用水立即冲洗，再用硼酸洗一下。Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.4课堂小实验Evaluation only.Created with Aspose.Slides for .NET 3.5

3、Client Pro.Copyright 2004-2011 Aspose Pty Ltd.5氢氧化钠的用途氢氧化钠是一种重要的化工原料，应用于肥皂，石油，纺织等工业。Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.6氢氧化钙氢氧化钙又叫石灰或消石灰。氢氧化钙的形成: CaO + H2O=Ca(OH）2此反应的现象：放出大量的热。Evaluation only.Created with Aspose.Slides for .NET 3.5

4、Client Pro.Copyright 2004-2011 Aspose Pty Ltd.7碱的重要性质Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.8二氧化碳的检验原理：Ca(Oh)2 +CO2=Ca(CO)3+H2O氢氧化钠的变质:2NaOH+CO2=NaCO3+H2OEvaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2

5、011 Aspose Pty Ltd.9本课总结酸碱指示剂跟酸和碱溶液作用显示不同的颜色。加石蕊溶液加无色酚酞溶液氢氧化钙溶液变蓝变红氢氧化钠溶液变蓝变红Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.10碱及其碱的重要性质：1.碱与水的反应2.碱与二氧化碳的反应3 .碱与酸的反应Evaluation only.Created with Aspose.Slides for .NET 3.5 Client Pro.Copyright 2004-2011 Aspose Pty Ltd.11 谢谢大家Evaluation only.Created