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Address: 9-6 Xinjian West Road, Zhoucun District, Zibo City
(Shandong Hongxin Chemical Co., Ximen diagonally across)
National free consultation hotline: 400-0533-359
Phone: 0533-6450255, 8809155
Contact: Liu Chuantao (General Manager)
Postcode: 255300
QQ: 270649857
Mobile: 13508942138
Email: lct1125@sina.com
lct1125@sohu.com

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How to detect the content of phthalic anhydride in Shandong?
Release time: 2019.12.09 News source: Shandong Shunxinlong New Material Technology Co., Ltd. Browse times:

Through this period of understanding, I believe that everyone is no stranger to Shandong phthalic anhydride, but for customers who want to further understand the relevant knowledge of this product is not enough. Today, Xiaobian will share with you the knowledge about Shandong phthalic anhydride content, hoping to attract everyone's attention and let everyone have a deep understanding of Shandong phthalic anhydride. In this way, everyone can be sure when buying and using xxx, don't panic, I hope to inspire and help everyone. 1. Free acidity: 0.1000g Shandong phthalic anhydride in a 150ml angle bottle, 50ml methyl ethyl ketone is dissolved, and the indicator bromophenol blue is titrated with a standard triethylamine solution until the green color just turns blue-purple.
2. Total effective acidity: 0.1000g of phthalic anhydride in a 150ml angular flask, boil 150ml of deionized water, titrate with 0.1000molNaOH while hot, the indicator is phenolphthalein, and the endpoint is slightly pink.

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Copyright: Shandong Shunxinlong New Material Technology Co., Ltd. Address: No. 9-6 Xinjian West Road, Zhoucun District, Zibo City (Shandong Hongxin Chemical Company West Gate diagonally across)
电话:0533-6450255,8908155 联系人:刘传涛(总经理) 手机:13508942138 National free consultation hotline: 400-0533-359 Tel: 0533-6450255, 8908155 Contact person: Liu Chuantao (general manager) Mobile phone: 13508942138
Postcode: 255300 QQ: 270649857 Email: lct1125@sina.com lct1125@sohu.com
Main Products: Maleic anhydride - phthalic anhydride -dicyclopentadiene- pure terephthalic acid
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