通過這段時間的了解，我們相信苯酐并不陌生，但是想要進一步了解客戶對產(chǎn)品的相關知識是不夠的。今天
順酐廠家小編將與大家分享關于山東苯酐含量的知識，希望引起大家的注意，讓大家對苯酐有一個深刻的了解。這樣，在你買的時候使用山東酸酐也可以做的很好，不用著急，希望對你有一些啟發(fā)和幫助。
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. 游離酸:將0.1000g山東苯酐溶解于150ml的角瓶中，溶解50ml的甲基乙基酮，指示劑為溴酚藍，滴定標準三乙胺溶液，直綠色變?yōu)樗{色和紫色。滴定要快，不要加熱。
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. 總有效酸度:取鄰苯二甲酸酐0.1000g，置于150ml去離子水的150ml角瓶中煮沸，熱時用0.1000摩爾naoh滴定，指示劑為酚酞，終點微粉。
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.
以上是順酐廠家為大家介紹的相關內(nèi)容，想要了解更多內(nèi)容，歡迎訪問網(wǎng)站：http://m.m9660.cn
The above is related content introduced by maleic anhydride manufacturer for you. To learn more, please visit the website: http://m.m9660.cn
