1-(2-Pyridylazo)-2-naphthol
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- CAS-Nr.
- 85-85-8
- Bezeichnung:
- 1-(2-Pyridylazo)-2-naphthol
- Englisch Name:
- 1-(2-Pyridylazo)-2-naphthol
- Synonyma:
- PAN;Hpan;O-PAN;USP52;PAN-2;FLJ39360;KIAA0710;PAN, Reagent;PAN INDICATOR;PanIndicatorGr
- CBNumber:
- CB0322603
- Summenformel:
- C15H11N3O
- Molgewicht:
- 249.27
- MOL-Datei:
- 85-85-8.mol
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1-(2-Pyridylazo)-2-naphthol Eigenschaften
- Schmelzpunkt:
- 138-141 °C (lit.)
- Siedepunkt:
- 392.37°C (rough estimate)
- Dichte
- 1.1469 (rough estimate)
- Brechungsindex
- 1.5700 (estimate)
- storage temp.
- Store at +5°C to +30°C.
- L?slichkeit
- Practically insoluble[in water]
- Aggregatzustand
- Powder/Solid
- pka
- 8.86±0.50(Predicted)
- Farbe
- green to red, upon chelation with metal
- Wasserl?slichkeit
- Insoluble
- BRN
- 206390
- Stabilit?t:
- Stable. Incompatible with strong oxidizing agents, strong bases.
- CAS Datenbank
- 85-85-8(CAS DataBase Reference)
- NIST chemische Informationen
- 2-Naphthalenol, 1-(2-pyridinylazo)-(85-85-8)
- EPA chemische Informationen
- 2-Naphthalenol, 1-(2-pyridinylazo)- (85-85-8)
1-(2-Pyridylazo)-2-naphthol Chemische Eigenschaften,Einsatz,Produktion Methoden
R-S?tze Betriebsanweisung:
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
S-S?tze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Chemische Eigenschaften
orange crystals
Verwenden
1-(2-Pyridylazo)-2-naphthol is an indicator of transition metals. 1-(2-Pyridylazo)-2-naphthol is an indicator in complexometry and a reagent for the extraction and spectrophotometric determination of many transition metals. Dyes and metabolites.
Allgemeine Beschreibung
1-(2-Pyridylazo)-2-naphthol (PAN), an orange colored dye, is commonly used as an acid-base indicator. It can form chelates with metal ions, which makes it a valuable indicator in complexometric titrations. PAN is also a spectrophotometric reagent, which can extract metal chelates into an organic solvent.
Landwirtschaftliche Anwendung
1-(2-Pyridylazo)-2-naphthol is a hard stratum of strongly compacted soil caused by continual plowing to the same depth of hardened soil which has high clay content. The precipitated iron and silicates cement the soil particles and form pans. 1-(2-Pyridylazo)-2-naphthol often impede drainage and root growth. It can be broken up using a subsoiler .
l?uterung methode
Purify PAN by repeated crystallisation from EtOH or MeOH. It can also be purified by sublimation under vacuum. Purity can be checked by TLC using a mixed solvent (pet ether/Et2O/EtOH; 10:10:1) on a silica gel plate. It has pK1 1.9 and pK2 12.2 in 20% aqueous ethoxyethanol. It chelates with copper [Pease & Williams Anal Chem 31 1046 1959]. [Beilstein 22 I 694, 22 III/IV 7073, 22/4 V 618.]
1-(2-Pyridylazo)-2-naphthol Upstream-Materialien And Downstream Produkte
Upstream-Materialien
Downstream Produkte
1-(2-Pyridylazo)-2-naphthol Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.
Global( 341)Lieferanten
85-85-8(1-(2-Pyridylazo)-2-naphthol)Verwandte Suche:
- 1-(2-pyridinylazo)-2-naphthaleno
- 1-(2-Pyridylazo)-2-Hydroxynaphthalene
- O-PAN
- 1-(2-Pyridylazo)-2-n
- 1-(2-Pyridylazo)-2-naphthol 99%
- 1-[(E)-2-Pyridinyldiazenyl]-2-naphthol
- 2-Hydroxy-1-(2-pyridylazo)naphthalene
- 2-Naphthol, 1-(2-pyridylazo)-
- Pyridylazonaphthol
- 1-(2-Pyridylazo)-2-naphthol,98%,pure,indicator grade
- PAN [=1-(2-Pyridylazo)-2-naphthol]
- 1-(2-Pyridylazo)-2-naphthol, indicator grade, pure, 98% 5GR
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL (PAN) METAL
- (E)-1-(pyridin-2-yldiazenyl)naphthalen-2-ol
- 1-(2-Pyridylazo)-2-naphthol, indicator
- 1-(Pyridin-2-yldiazenyl)naphthalen-2-ol
- 1-(2-Pyridylazo)-2-naphthol, 98%, indicator, 98%
- Anti-PAN2 (C-terminal) antibody produced in rabbit
- FLJ39360
- KIAA0710
- USP52
- 1-(2-Pyridylazo)-2-naphthol 〔PAN〕
- 1-(2-Pyridylazo)-2-naphtholIndicator grade,
≥ 98% (Assay)
- 1-(2-Pyridylazo)-2-Naphthol≥ 98% (Assay)
- 1-(2-Pyridylazo)-2-naphthol (PAN) metal indicator Reag. Ph Eur
- 1-(2-Pyridylazo)-2-naphtol
- 1-(2-Pyridylazo)-2-naphthol, indicator grade, pure, 98%
- PAN,REAGENT,ACS
- 1-(2-pyridinazo)-2-naphthol
- PAN [=1-(2-Pyridylazo)-2-naphthol] [Metal indicator and spectrophotometric reagent for transition metals]
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL SOLUTION, 0.1% In ETHYL ALCOHOL
- 1-(2-Pyridylazo)-2-naphtol(PAN)
- 2-Naphthalenol, 1-(2-pyridinylazo)-
- 1(2-PYRIDYLAZO)-2-NAPHTHOL extrapure AR
- PAN, Reagent
- 1-(Pyridin-2-ylhydrazinylidene)naphthalen-2-one
- 1-(2-Pyridylazo)-2-naphthol, 98%, indicator grade, pure
- 1-(2-Pyridylazo)-2-naphthaleneol
- 2-(2-Hydroxy-1-naphtylazo)pyridine
- A-(2-PYRIDINEAZO)-B-NAPHTHOL
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL
- 1-(2-pyridinylazo)-2-Naohthalenol
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL REAGENT (ACS)
- TIMTEC-BB SBB009111
- PAN INDICATOR
- PAN-2
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL, A.C.S. REAG ENT
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL, INDICATOR G RADE
- 1-(2-PYRIDYLAZO)-2-NAPHTHOL INDICATOR FO R METAL TITRATION
- 1-(2-Pyridylazo)-2-NaphtholA.R.(Pan)
- PanIndicatorGr-(1-(2-Pyridylazo)-2-Naphthol)
- PanIndicatorGr
- (2-PyridylAzo)-2-Naphthol
- (1E)-1-(2-pyridinylhydrazinylidene)-2-naphthalenone
- PAN [=1-(2-Pyridylazo)-2-naphthol][Metal indicator and spectrophotometric reagent for transition metals]>
- 1-(2-Pyridylazo)-2-naphthol, 90%, for analysis
- 2-Naphthalenol, 1-[2-(2-pyridinyl)diazenyl]-
- 1-(2-Pyridylazo)-2-naphthol indicator [transition metal indicator and spectrophotometric reagent for transition metals
