通过这段时间的了解，我们相信苯酐并不陌生，但是想要进一步了解客户对产品的相关知识是不够的。今天
顺酐生产厂家小编将与大家分享关于山东苯酐含量的知识，希望引起大家的注意，让大家对苯酐有一个深刻的了解。这样，在你买的时候使用山东酸酐也可以做的很好，不用着急，希望对你有一些启发和帮助。
Through this period of understanding, we believe that phthalic anhydride is not new, but it is not enough to further understand the customer's relevant knowledge of the product. Today, the small edition of maleic anhydride manufacturer will share the knowledge about the content of phthalic anhydride in Shandong with you, hoping to attract your attention and let you have a deep understanding of phthalic anhydride. In this way, when you buy it, you can also do well with Shandong anhydride. Don't worry. I hope it will give you some inspiration and help.
1. 游离酸:将0.1000g山东苯酐溶解于150ml的角瓶中，溶解50ml的甲基乙基酮，指示剂为溴酚蓝，滴定标准三乙胺溶液，直绿色变为蓝色和紫色。滴定要快，不要加热。
1. Free acid: dissolve 0.1000g of Shandong phthalic anhydride in a 150ml angle flask, 50ml of methyl ethyl ketone, the indicator is bromophenol blue, titrate the standard triethylamine solution until the green changes to blue and purple. Titrate quickly, do not heat.
2. 总有效酸度:取邻苯二甲酸酐0.1000g，置于150ml去离子水的150ml角瓶中煮沸，热时用0.1000摩尔naoh滴定，指示剂为酚酞，终点微粉。
2. Total effective acidity: take 0.1000g of phthalic anhydride, boil it in 150ml angle flask of 150ml deionized water, titrate it with 0.1000mol NaOH when it is hot, the indicator is phenolphthalein, and the end point is micropowder.
以上是顺酐生产厂家为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：http://www.jnjhhg.cn
The above is related content introduced by maleic anhydride manufacturer for you. To learn more, please visit the website: http://www.jnjhhg.cn
