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Produkter
Modell nr: TF-2010
Märke: Tianfu
Förpackning: Som köparens begäran
Produktivitet: 100Ton
Transportfordon: Ocean,Land,Air,DHL,TNT
Hemorten: Kina
Stödja: 50Ton
Certifikat: ISO
Hamn: Shanghai port,Qingdao port
Betalning Typ: L/C,T/T,D/P,Paypal,Money Gram,Western Union
Incoterm: FOB,CFR,CIF,EXW,FCA,CPT,CIP
Fenolftalin är en kemisk förening med formeln C20H14O4 och är ofta skrivet som "HIn" eller "phph" i kortfattad notering. Används ofta i titreringar, det blir färglöst i sura lösningar och rosa i grundläggande lösningar. Om indikatorns koncentration är särskilt stark kan den se ut som lila. I starka baslösningar genomgår fenolftalinens rosa färg en ganska långsam blekning och blir färglös igen.
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 |
Produktkategorier : Farmaceutiskt material > Farmaceutiska mellanprodukter
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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.