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Manufacturing Companies for Organic Intermediate Raw Material Phenolphthalein 99% CAS77-09-8

 

 

 


  • Cas: 77-09-8
  • Molecular formula: C20H14O4
  • Molecular weight: 318.32
  • EINECS: 201-004-7
  • Synonym: alpha, alpha.-Di(p-hydroxyphenyl)phthalide; 1(3H)-Isobenzofuranone, 3,3-bis(4-hydroxyphenyl)-; 1(3H)-Isobenzofuranone,3,3-bis(4-hydroxyphenyl)-; 2,2-bis(p-hydroxyphenyl)phthalide; 3,3-bis(4-hydroxyphenyl)-1(3h)-isobenzofuranon; alpha-(p-hydroxyphenyl)-alpha-(4-oxo-2,5-cyclohexadien-1-ylidine)-o-toluicacid; alpha-di-(p-hydroxyphenyl)phthalide
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    We support our prospective buyers with ideal top quality merchandise and superior level provider. Becoming the specialist manufacturer in this sector, we have now attained abundant practical expertise in producing and managing for Manufacturing Companies for Organic Intermediate Raw Material Phenolphthalein 99% CAS77-09-8, We believe in quality over quantity. Before export of the hair there is strict quality control check during treatment as per international quality standards.
    We support our prospective buyers with ideal top quality merchandise and superior level provider. Becoming the specialist manufacturer in this sector, we have now attained abundant practical expertise in producing and managing for China Phenolphthalein and 77-09-8, Our aim is to help customers to make more profits and realize their goals. Through a lot of hard work, we establish a long-term business relationship with so many customers all around the world, and achieve win-win success. We’ll continue to do our best effort to service and satisfy you! Sincerely welcome you to join us!

    Phenolphthalein is a weak organic acid, which appears as white or slightly yellow fine crystals at room temperature. It is odorless and tasteless. It is difficult to dissolve in water but easily soluble in alcohol (ethanol) and ether. It is dissolved in alcohol solution to make an acid-base indicator. It is colorless in acidic solution and red in alkali solution or alkali metal carbonate solution. However, if it is in concentrated alkali solution, it will produce colorless trimetallic acid. salt, red color fades

    Appearance

    White or light yellow crystalline powder

    Content

    98-102

    Melting point

    260-263℃

    Chloride

    ≤0.01

    Sulfate

    ≤0.02

    Sensitivity

    Qualified

    Residue on ignition

     (in terms of sulfate)

     

    ≤0.1

    Loss on drying

    ≤1.0

    Heavy metal

    ≤0.001

    Total number of aerobic bacteria

    ≤1000cfu/g

    Total number of molds and yeasts

    ≤100cfu/g

    1. Pharmaceutical raw materials for the pharmaceutical industry: suitable for habitual and stubborn constipation, available in tablets, suppositories and other dosage forms.

    2. Phenolphthalein used in organic synthesis: mainly used for synthetic plastics, especially for the synthesis of naphthyridine polyaryl ether ketone polyaryl ether ketone polymers. This type of polymer has excellent heat resistance, water resistance, and chemical resistance. Due to its corrosion resistance, heat aging resistance and good processing and formability, fibers, coatings and composite materials made from it are soon widely used in electronic appliances, mechanical equipment, transportation, aerospace, atomic energy engineering and military fields.

    3. Phenolphthalein used as acid-base indicator, indicator for titration of non-aqueous solutions, and reagent for chromatographic analysis.

    Phenolphthalein-used

     

    25kgs/drum, 9tons/20’container
    25kgs/bag, 20tons/20’container

    We support our prospective buyers with ideal top quality merchandise and superior level provider. Becoming the specialist manufacturer in this sector, we have now attained abundant practical expertise in producing and managing for Manufacturing Companies for Organic Intermediate Raw Material Phenolphthalein 99% CAS77-09-8, We believe in quality over quantity. Before export of the hair there is strict quality control check during treatment as per international quality standards.
    Manufacturing Companies for China Phenolphthalein and 77-09-8, Our aim is to help customers to make more profits and realize their goals. Through a lot of hard work, we establish a long-term business relationship with so many customers all around the world, and achieve win-win success. We’ll continue to do our best effort to service and satisfy you! Sincerely welcome you to join us!

     


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