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    Home > Chemicals Industry > Chemical Technology > Product performance and production principle of 3-mercaptopropionic acid

    Product performance and production principle of 3-mercaptopropionic acid

    • Last Update: 2021-09-05
    • Source: Internet
    • Author: User
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    3-mercaptopropionic acid (3-mercaptopropionic acid), also known as mercaptolactic acid and thiopropionic acid, has a molecular formula of C 3 H 6 O 2 S, a molecular weight of 106.


    1.


    Colorless to light yellow transparent liquid; freezing point 16.


    2.


    After thiourea reacts with hydrochloric acid , it is added with acrylonitrile


    3.


    4.


     

    5.


    Reactor, distillation tower, liquid separator, storage tank, finished product tank


    6.


    First, 1660kg of 30% hydrochloric acid was added to the reaction kettle, 326kg of thiourea was added with stirring, and the reaction was stirred at 40°C for 0.


    7.


    8.


    1) Determination of freezing point

    Pour the liquid-based propionic acid sample into the Zhukov bottle (approximately 2/3)


    The difference between the two absolute values ​​measured should not exceed 0.


    2) Assay

    Measured by acid-base titration


    9.
    Product use

    This product is an intermediate of medicine fennarol
    .
    It is also used as a stabilizer for polyethylene
    .
    It can be used for transparent plastic products like thioglycolic acid , and has very good thermal stability, which is better than other stabilizers
    .
    Also used as antioxidants, catalysts and biochemical reagents
    .
    Also used in organic synthesis
    .

    10.
    Security measures

    (1) Acrylonitrile as the raw material is extremely poisonous and can be absorbed through the skin.
    The maximum allowable concentration in the workplace is 45kg/m3
    .
    Acrylonitrile splashed on clothing should be taken off immediately, splashed on the skin, rinse with plenty of water
    .
    Thiourea is moderately toxic and corrosive to the skin
    .
    Production equipment should be closed, and operators should wear labor protection equipment
    .
    The workshop is well ventilated
    .

    (2) This product is toxic
    .
    Packed in plastic buckets or glass bottles, and stored in a cool, dry place
    .

     

     

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