Benzoylisothiocyanat

Bezeichnung:Benzoylisothiocyanat

CAS-Nr532-55-8

Englisch Name:Benzoyl isothiocyanate

CBNumberCB8116176

SummenformelC8H5NOS

Molgewicht163.2

MOL-Datei532-55-8.mol

Synonyma

Benzoylisothiocyanat

Benzoylisothiocyanat physikalisch-chemischer Eigenschaften

Schmelzpunkt	128 °C
Siedepunkt	128-131 °C/15 mmHg (lit.)
Dichte	1.214 g/mL at 25 °C (lit.)
Brechungsindex	n20/D 1.6354(lit.)
Flammpunkt	>230 °F
storage temp.	2-8°C
Löslichkeit	Chloroform
Aggregatzustand	Liquid
Farbe	Clear yellow to orange-brown
Wichte	1.214
Wasserlöslichkeit	almost insoluble
Sensitive	Moisture Sensitive/Lachrymatory
Merck	14,1114
BRN	606716
CAS Datenbank	532-55-8(CAS DataBase Reference)
NIST chemische Informationen	Benzoyl isothiocyanate(532-55-8)

Sicherheit

Kennzeichnung gefährlicher	T,Xi
R-Sätze:	25-32-36-43-42/43-36/37/38-20/21/22
S-Sätze:	26-36/37-45-36/37/39
RIDADR	UN 2810 6.1/PG 3
WGK Germany	3
Hazard Note	Lachrymatory/Moisture Sensitive
TSCA	T
HazardClass	6.1
PackingGroup	III
HS Code	29309070

Gefahreninformationscode (GHS)

Benzoyl isothiocyanate Chemische Eigenschaften,Einsatz,Produktion Methoden

R-Sätze Betriebsanweisung:
R25:Giftig beim Verschlucken.
R32:Entwickelt bei Berührung mit Säure sehr giftige Gase.
R36:Reizt die Augen.
R43:Sensibilisierung durch Hautkontakt möglich.
R42/43:Sensibilisierung durch Einatmen und Hautkontakt möglich.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitsschädlich beim Einatmen,Verschlucken und Berührung mit der Haut.
S-Sätze Betriebsanweisung:
S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S36/37:Bei der Arbeit geeignete Schutzhandschuhe und Schutzkleidung tragen.
S45:Bei Unfall oder Unwohlsein sofort Arzt zuziehen (wenn möglich, dieses Etikett vorzeigen).
S36/37/39:Bei der Arbeit geeignete Schutzkleidung,Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
Beschreibung
Benzoyl isothiocyanate is a chemical compound commonly used in organic synthesis and as a reagent in the pharmaceutical industry. It finds applications in producing dyes, pesticides, and pharmaceutical intermediates. Safety precautions must be taken when handling this compound as it can irritate the skin, eyes, and respiratory system. It should be stored in a tightly sealed container from heat sources or open flames. Proper ventilation and personal protective equipment such as gloves and goggles should be used during handling. Benzoyl isothiocyanate may have environmental impacts if not properly disposed of according to local regulations. Not for human consumption.
Chemische Eigenschaften
CLEAR YELLOW TO ORANGE-BROWN LIQUID
Verwenden
Benzoyl isothiocyanate has been used in the preparation of:
- 1-benzoyl-3-(5-chloro-2-hydroxyphenyl)thiourea, new thiourea derivative
- guanine
läuterung methode
Distil the isothiocyanate over a small amount of P2O5, whereby the distillate crystallises in prisms. It is readily hydrolysed by H2O to give benzamide and benzoylurea, but with NH3 it gives benzoylurea m 210o which can be recrystallised from EtOH. [Hill & Degnan J Am Chem Soc 62 1595 1940, Terss & McEwen J Am Chem Soc 76 580 1954, Frank & Smith Org Synth Coll Vol III 735 1955, Beilstein 9 IV 777.]
Properties and Applications
Benzoyl isothiocyanate (BI), as a new type of comonomer, has attracted particular attention because the structure of BI contains not only a benzene ring but also an amino group. Remarkably, the introduction of a benzene ring can be used as a D unit, and amino groups in BI were bonded with the tri-s-triazine units through thermal polymerization. BI as a precursor is used to design the UCN-based D-A conjugated copolymers by copolymerization with urea, which can favour forward intramolecular charge separation to achieve excellent photocatalytic activity and AQE in photocatalytic H2 evolution. The obtained UCN-BIx D-A conjugated copolymers possess fast forward direction charge transfer and a broad absorption range of visible light and a large specific surface area with many reactive sites. In addition, the UCN-BI400 D-A conjugated copolymer also exhibits good crystallinity and higher conduction band (CB) position than pure g-C3N4[1].
Einzelnachweise
[1] Huinan Che . “Benzoyl isothiocyanate as a precursor to design of ultrathin and high-crystalline g-C3N4-based donor–acceptor conjugated copolymers for superior photocatalytic H2 production.” Chemical Engineering Journal 410 (2021): Article 127791.

Benzoyl isothiocyanate Upstream-Materialien And Downstream Produkte

Benzoylisothiocyanat Anbieter Lieferant Produzent Hersteller Vertrieb Händler.

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