buy high quality 13-propylene glycol,13-propylene glycol for sale online price,13-propylene glycol Pictures,13-propylene glycol Basic Info,13-propylene glycol Standard - PharmaSources.com
We use cookies to help provide you with the best possible online experience. Please read our Privacy Policy for information about which cookies we use and what information we collect on our site. By continuing to use this site, you agree that we may store and access cookies on your device.
I Agree
Basic Info
  • Grade: Cosmetic Grade

    Factory Location: Zhejiang Province, China

    Main Sales Markets: North America,Central/South America,Western Europe,Eastern Europe,Australasia,Asia,Middle East,Africa

  • Monthly Production Capacity: 10 tons per month

    Contract Manufacturing: CRO,CMO

    Packaging Information: 230kg/PE barrel or IBC ton barrel

  • Delivery Lead Time: 1week

    Sample Provided: yes

    Payment Terms: T/T

    1, 3-propylene glycol Classification: Cosmetic grade and Industrial grade

    1, 3-propylene glycol (Propan-1,3-diol) is a chemical compound with a molecular formula of C3H8O2 and a molecular weight of 76.10, colorless transparent viscous liquid.
    It can be used for the synthesis of many drugs, new polyester PTT, pharmaceutical intermediates and new antioxidants.

    1, 3-propylene glycol product introduction
    1, 3-propanediol (1, 3-propanediol, 1, 3-PDO) is a colorless, odorless, salty, hygroscopic viscous liquid. It is a raw material for the production of unsaturated polyester, plasticizer, surfactant, emulsifier and demulsifier. In the polyurethane industry, it is commonly used as the raw material of polyester polyol, the initiator of polyether polyol and the chain extender of polyurethane. In the organic chemical industry, it is also an important monomer and intermediate, and the most important use is as a polymer monomer to synthesize polypropylene terephthalate (PrT).

    1, 3-propylene glycol preparation method
    The chemical preparation of 1,3 monopropylene glycol by glycerol can be divided into dehydroxylation, hydrodehydrating and dehydrating to acrolein. Among them, the reaction steps of dehydroxylation method are clear, the reaction speed is fast, the by-products are less, and the separation is easy, which is conducive to the conversion of glycerol into 1, 3-propylene glycol. However, the reactant material, sulfonyl chloride, is a fine chemical, the production is small and the price is high, which affects the industrialization of the method. With the increasing demand for 1, 3-propylene glycol in the world, the selective catalysis of glycerol will be the focus and difficulty of research. There are relatively few studies on the production of 1, 3-propylene glycol by catalytic hydrolysis, and the main products of hydrolysis are 1, 3-propylene glycol and 1, 2. A mixture of propylene glycol with poor product selectivity. Therefore, the improvement of separation technology will be another challenge for glycerol-catalyzed hydrogen hydrolysis.
    When adding H2WO4 and basic substances (amines or amides) to the homogeneous catalytic system of rhodium complex Rh(CO)2(aaac), glycerol can be hydrolyzed to 1, 3-monopropylene glycol with a yield of 21% under appropriate conditions. At the same time, almost the same amount of 1, 2-propylene glycol is produced. In the preparation of 1,3 monopropylene glycol by acrolein method, glycerol must be converted into acrolein by catalytic dehydration.

    Official website:https://www.yearnintl.com/

Send your message to this supplier
  • From:
  • To:
    Shanghai Yearn Chemical Science-Tech Co.,Ltd
  • Send a Copy to this Email
  • Message:
    Upload Images / Files
    - Supports jpg, jpeg, png,
     gif, pdf, doc, docx,
     xls, xlsx, txt, rar and zip
    - Max upload 3 files;
     Max  total size: 3MB
    (0/3)

    Enter between 20 to 4,000 characters.This is not what you are looking for ? Post a Sourcing Request Now

  • Verification:
PharmaSources Customer Service