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.
Lista de Productos
Modelo: TF-2010
Marca: Tianfu
Paquete: Como petición del comprador
productividad: 100Ton
transporte: Ocean,Land,Air,DHL,TNT
Lugar de origen: China
Apoyo sobre: 50Ton
Certificados : ISO
Hafen: Shanghai port,Qingdao port
Tipo de Pago: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
La fenolftaleína es un compuesto químico con la fórmula C20H14O4 y a menudo se escribe como "HIn" o "phph" en notación abreviada. Usado a menudo en titulaciones, se vuelve incoloro en soluciones ácidas y rosado en soluciones básicas. Si la concentración del indicador es particularmente fuerte, puede aparecer púrpura. En soluciones fuertemente básicas, el color rosa de la fenolftaleína sufre una reacción de decoloración bastante lenta y se vuelve incoloro nuevamente.
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 |
PRODUCTOS POR GRUPO : Material farmaceutico > Intermedios farmacéuticos
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.
Fill in more information so that we can get in touch with you faster
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.