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New Arrival China Pharmaceutical Grade CAS 77-09-8 Phenolphthalein

 

 


  • 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 not only will try our greatest to supply outstanding services to every shopper, but also are ready to receive any suggestion offered by our buyers for New Arrival China Pharmaceutical Grade CAS 77-09-8 Phenolphthalein, Should you be interested in almost any goods, remember to truly feel totally free to get in touch with us for further facts or be sure to deliver us email right, we will reply you in just 24 hrs as well as the finest quotation are going to be provided.
    We not only will try our greatest to supply outstanding services to every shopper, but also are ready to receive any suggestion offered by our buyers for China Phenolphthalein and 77-09-8, We have top engineers in these industries and an efficient team in the research. What is more, we have now our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. You should find our website to check more information from our products and solutions.

    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.

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

    We not only will try our greatest to supply outstanding services to every shopper, but also are ready to receive any suggestion offered by our buyers for New Arrival China Pharmaceutical Grade CAS 77-09-8 Phenolphthalein, Should you be interested in almost any goods, remember to truly feel totally free to get in touch with us for further facts or be sure to deliver us email right, we will reply you in just 24 hrs as well as the finest quotation are going to be provided.
    New Arrival China China Phenolphthalein and 77-09-8, We have top engineers in these industries and an efficient team in the research. What is more, we have now our own archives mouths and markets in China at low cost. Therefore, we can meet different inquiries from different clients. You should find our website to check more information from our products and solutions.


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