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Produkt-Liste
Modell: TF-2010
Marke: Tianfu
Verpakung: Als Käufer Antrag
Produktivität: 100Ton
Transport: Ocean,Land,Air,DHL,TNT
Ort Von Zukunft: China
Unterstützung über: 50Ton
Zertifikate : ISO
Hafen: Shanghai port,Qingdao port
Zahlungsart: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Phenolphthalein ist eine chemische Verbindung mit der Formel C20H14O4 und wird häufig in Kurzschreibweise als "HIn" oder "phph" geschrieben. Oft in Titrationen verwendet, wird es in sauren Lösungen farblos und in basischen Lösungen rosa. Wenn die Konzentration des Indikators besonders hoch ist, kann er violett erscheinen. In stark basischen Lösungen geht die rosa Farbe von Phenolphthalein langsam verloren und wird wieder farblos.
Items |
Standards |
Results |
Characteristics |
A white or almost white powder ,practically insoluble in water ,soluble in alcohol |
Conform |
Melting temperature |
≥260℃ |
260.5℃~262.6℃ |
Identification |
A Positive B Positive |
A Positive B Positive |
Appearance of solution |
The solution is clear and not more intensely coloured than reference solution Y7 |
Complies |
Related substances |
Less than 0.5% |
< 0.5% |
Heavy metals |
≤10ppm |
<10ppm |
Arsenic |
≤8ppm |
<8ppm |
Acidity or Alkalinity |
Complies |
Complies |
Chlorides |
≤100ppm |
<100ppm |
Sulphates |
≤200ppm |
<200ppm |
Organic volatile impurities |
pass |
pass |
Chromatographic impurities |
≤1.0% |
<1.0% |
Fluoran |
To pass test |
Complies |
Loss on drying |
≤0.50% |
0.10% |
Sulphated ash (Residue on ignition) |
≤0.10% |
0.02% |
Assay |
98.0%~101.0% (C20H14O4) |
99.8% |
Remark |
Storage condition: Well closed container, store protected from light |
Produktgruppe : Pharmazeutisches Material > Pharmazeutische Zwischenprodukte
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.