3-Hydroxy-2-naphthanilid

Bezeichnung:3-Hydroxy-2-naphthanilid

CAS-Nr92-77-3

Englisch Name:Naphthol AS

CBNumberCB0697833

SummenformelC17H13NO2

Molgewicht263.29

MOL-Datei92-77-3.mol

Synonyma

3-Hydroxy-2-naphthanilid

3-Hydroxy-2-naphthanilid physikalisch-chemischer Eigenschaften

Schmelzpunkt	246-248 °C(lit.)
Siedepunkt	406.53°C (rough estimate)
Dichte	1.1138 (rough estimate)
Brechungsindex	1.4500 (estimate)
storage temp.	Refrigerator
Löslichkeit	Insoluble in water; sparingly soluble in ethanol
pka	9.70(at 25℃)
Colour Index	37505
Aggregatzustand	Powder
Farbe	Beige
Säure-Base-Indikators(pH-Indikatoren)	Non& uorescence (8.2) to yellow/green & uorescence (10.3)
maximale Wellenlänge (λmax)	394nm
Major Application	Sensors, recording materials, photovoltaic cells, copying materials, photoreceptors, lithographic printing plates, inks, toner, paints, textiles, detecting cancer
CAS Datenbank	92-77-3(CAS DataBase Reference)
EPA chemische Informationen	3-Hydroxy-2-naphthanilide (92-77-3)

Sicherheit

Kennzeichnung gefährlicher	Xi,N
R-Sätze:	43-51/53
S-Sätze:	36/37-61
RIDADR	UN 3077 9/PG 3
WGK Germany	1
RTECS-Nr.	QJ1897400
F	10-21
HazardClass	9
PackingGroup	III
HS Code	29242990

Gefahreninformationscode (GHS)

Naphthol AS Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R43:Sensibilisierung durch Hautkontakt möglich.
R51/53:Giftig für Wasserorganismen, kann in Gewässern längerfristig schädliche Wirkungen haben.
S-Sätze Betriebsanweisung:
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S61:Freisetzung in die Umwelt vermeiden. Besondere Anweisungen einholen/Sicherheitsdatenblatt zu Rate ziehen.
Beschreibung
Naphtol AS is a coupling agent in cotton dying. Occupational dermatitis was reported in a woman involved in needlework, probably sensitized from occupational contact with clothes.
Chemische Eigenschaften
beige powder
Verwenden
Naphtol AS was used as off-the-shelf color-based anion sensors in organic solvents.
synthetische
aniline and 3-Hydroxy-2-naphthoic acid?condensation.
Hazard
Low toxicity by ingestion.
Kontakt-Allergie
Naphthol AS is a coupling agent in cotton dyeing, inducing occupational dermatitis or contact allergy in consumers in contact with cotton-dyed clothing. It has been indirectly reported as a cause of occupational allergy due to its coupling with Diazo Component 51, or as a crosssensitizer or sensitizer associated with Pigment Red 23 in red parts of tattoos. Pigmented contact dermatitis is usual in patients with a high phototype.
läuterung methode
Crystallise it from xylene or AcOH which forms plates m 243-244o [Schnopper et al. Anal Chem 31 1542 1959]. [Beilstein 12 H 505.]
Properties and Applications
rice or small red powder, melting point of 243 ~ 244 ℃, more sensitive to the air. In sodium hydroxide solution for yellow in liquid, insoluble in water and sodium carbonate solution, slightly soluble in ethanol, soluble in hot the difficulties. This product is widely used in the cotton fabric dyeing and printing. Dyeing cotton, cotton affinity is low, medium coupled ability. Can also be used for cotton yarn, polyester/cotton, PVA, viscose, silk and vinegar fiber dyeing, also can undertake direct printing, and reactive dye printing and cotton fabrics with the dye printing, discharge printing, the reactive dyes color printing and dyeing, and used to make quick pigment, fast amine element, element and organic pigment fast sulfonylurea medications.

Naphthol AS Upstream-Materialien And Downstream Produkte

3-Hydroxy-2-naphthanilid Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

92-77-3, Naphthol AS Verwandte Suche:

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