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Liste de Produits
Modèle: TF-2010
marque: Tianfu
Détails d'emballage: Comme demande de l'acheteur
productivité: 100Ton
transport: Ocean,Land,Air,DHL，TNT
Lieu d'origine: Chine
Soutenir: 50Ton
Certificats : ISO
Hafen: Shanghai port,Qingdao port
Type de paiement: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
La phénolphtaléine est un composé chimique de formule C20H14O4 et est souvent écrite comme "HIn" ou "phph" en notation abrégée. Souvent utilisé dans les titrages, il devient incolore dans les solutions acides et rose dans les solutions basiques. Si la concentration de l'indicateur est particulièrement forte, il peut apparaître en violet. Dans les solutions fortement basiques, la couleur rose de la phénolphtaléine subit une décoloration lente et redevient incolore.
|
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 |
|
Groupes de Produits : Matériel pharmaceutique > Intermédiaires pharmaceutiques
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.
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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.