echemi logo
Product
  • Product
  • Supplier
  • Inquiry
    Home > Chemicals Industry > Chemical Technology > Reactions that may produce hazardous products (by-products) (2)

    Reactions that may produce hazardous products (by-products) (2)

    • Last Update: 2022-01-19
    • Source: Internet
    • Author: User
    Search more information of high quality chemicals, good prices and reliable suppliers, visit www.echemi.com

    Example 4


    Reporting process: controlling the temperature below 30 ℃, the over potassium hydrogen sulfate solution complex salt (of Oxone) was added dropwise compound A in acetone solution


    Remarks: Potassium hydrogen persulfate composite salt is easy to dissolve in water and consists of potassium hydrogen persulfate, potassium hydrogen sulfate and potassium sulfate (KHSO 5 ·0.


    Example 5


    Application process: the reaction of methyl acrylate and H 2 /CO mixed gas under high pressure (1000 psi) catalytic conditions of 55~65℃ to insert carbonyl groups to make aldehydes.


    Remarks: Acrylate may undergo exothermic polymerization under heating, and the risk is very high under airtight conditions.


    Example 6


    Application process: Put the reaction flask in the aluminum bath, add AlCl 3 , and add the substrate to the reactor in batches when the temperature is raised to about 260°C


    Remarks: At high temperature, you need to pay attention to the sublimation of AlCl 3 , which will condense on the top of the bottle, which may cause blockage and danger


     

     

    This article is an English version of an article which is originally in the Chinese language on echemi.com and is provided for information purposes only. This website makes no representation or warranty of any kind, either expressed or implied, as to the accuracy, completeness ownership or reliability of the article or any translations thereof. If you have any concerns or complaints relating to the article, please send an email, providing a detailed description of the concern or complaint, to service@echemi.com. A staff member will contact you within 5 working days. Once verified, infringing content will be removed immediately.

    Contact Us

    The source of this page with content of products and services is from Internet, which doesn't represent ECHEMI's opinion. If you have any queries, please write to service@echemi.com. It will be replied within 5 days.

    Moreover, if you find any instances of plagiarism from the page, please send email to service@echemi.com with relevant evidence.