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Free sample for Tgy High Quality Phenolphthalein Powder CAS 77-09-8

 

 


  • 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’ve a qualified, efficiency group to offer excellent support for our client. We normally follow the tenet of customer-oriented, details-focused for Free sample for Tgy High Quality Phenolphthalein Powder CAS 77-09-8, We promise to try our greatest to provide you with good quality and productive services.
    We’ve a qualified, efficiency group to offer excellent support for our client. We normally follow the tenet of customer-oriented, details-focused for China Phenolphthalein and Pure Phenolphthalein, Good quality and reasonable price have brought us stable customers and high reputation. Providing ‘Quality Solutions, Excellent Service, Competitive Prices and Prompt Delivery’, we’re now looking forward to even greater cooperation with overseas customers based on mutual benefits. We are going to work whole-heartedly to improve our solutions and services. We also promise to work jointly with business partners to elevate our cooperation to a higher level and share success together. Warmly welcome you to visit our factory sincerely.

    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’ve a qualified, efficiency group to offer excellent support for our client. We normally follow the tenet of customer-oriented, details-focused for Free sample for Tgy High Quality Phenolphthalein Powder CAS 77-09-8, We promise to try our greatest to provide you with good quality and productive services.
    Free sample for China Phenolphthalein and Pure Phenolphthalein, Good quality and reasonable price have brought us stable customers and high reputation. Providing ‘Quality Solutions, Excellent Service, Competitive Prices and Prompt Delivery’, we’re now looking forward to even greater cooperation with overseas customers based on mutual benefits. We are going to work whole-heartedly to improve our solutions and services. We also promise to work jointly with business partners to elevate our cooperation to a higher level and share success together. Warmly welcome you to visit our factory sincerely.


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