The synthesis of NMP is described in detail

NMP mainly uses the BDO method to synthesize γ-butyrolactone, and then reacts with methylamine to generate NMP. This route is a relatively mature and reliable t...


A historical landmark that reminds you of old Hong Kong

For a long time, Hong Kong has been a city of constant change. That frenetic, rejuvenating energy has captured the hearts of many. But sometimes it s important ...

26 Sep

PDF and word difference, how to edit pdf files on the computer?

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15 Sep

What is the price of Wanderlog?

Wanderlog is completely free to use, and the free version gives users access to nearly all of the functionality of the apps.

10 Jul

How much time does SEO for websites require?

SEO takes time to perform, in contrast to other well-liked marketing channels. While most professionals anticipate results in as little as two months, SEO can t...

25 Jun

How to buy a car vacuum machine in the car vacuum machine selection method

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20 May

Acne and acne come again? 5 habits to change

The embarrassment of acne is that it is not a patent for young people. As long as the hormones in the body are disrupted, no matter how old the person is, it ca...