成人免费xx,国产又黄又湿又刺激不卡网站,成人性视频app菠萝网站,色天天天天

4-Bromphenol

4-Bromophenol Struktur
106-41-2
CAS-Nr.
106-41-2
Bezeichnung:
4-Bromphenol
Englisch Name:
4-Bromophenol
Synonyma:
P-BROMOPHENOL;Para Bromo Phenol;4-Bromphenol;Phenol, 4-bromo-;NSC 4970;p-Bromphenol;4-BROMOPHENOL;BROMOPHENOL-4;P-Bromophenlo;4-bromo-pheno
CBNumber:
CB7181317
Summenformel:
C6H5BrO
Molgewicht:
173.01
MOL-Datei:
106-41-2.mol

4-Bromphenol Eigenschaften

Schmelzpunkt:
61-64 °C (lit.)
Siedepunkt:
235-236 °C (lit.)
Dichte
1.84
Brechungsindex
1.5085 (estimate)
Flammpunkt:
235-238°C
storage temp. 
room temp
L?slichkeit
14g/l
Aggregatzustand
Crystalline Solid
pka
9.37(at 25℃)
Farbe
Pinkish-brown
Wasserl?slichkeit
It is insoluble in water. It is soluble in 5%ethanol.
maximale Wellenl?nge (λmax)
282nm(EtOH)(lit.)
Merck 
14,1428
BRN 
1680024
CAS Datenbank
106-41-2(CAS DataBase Reference)
NIST chemische Informationen
4-Bromophenol(106-41-2)
EPA chemische Informationen
Phenol, 4-bromo- (106-41-2)
Sicherheit
  • Risiko- und Sicherheitserkl?rung
  • Gefahreninformationscode (GHS)
Kennzeichnung gef?hrlicher Xn,Xi
R-S?tze: 22-36/37/38-20/21/22
S-S?tze: 26-37/39-36
RIDADR  2811
WGK Germany  2
RTECS-Nr. SJ7960000
8-10-23
Hazard Note  Irritant
TSCA  Yes
HazardClass  6.1(b)
PackingGroup  III
HS Code  29081000
Giftige Stoffe Daten 106-41-2(Hazardous Substances Data)
Toxizit?t mouse,LD50,intraperitoneal,411mg/kg (411mg/kg),Gigiena i Sanitariya. For English translation, see HYSAAV. Vol. 44(12), Pg. 19, 1979.
Bildanzeige (GHS) GHS hazard pictograms
Alarmwort Warnung
Gefahrenhinweise
Code Gefahrenhinweise Gefahrenklasse Abteilung Alarmwort Symbol P-Code
H302 Gesundheitssch?dlich bei Verschlucken. Akute Toxizit?t oral Kategorie 4 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P270, P301+P312, P330, P501
H315 Verursacht Hautreizungen. Hautreizung Kategorie 2 Warnung GHS hazard pictogramssrc="/GHS07.jpg" width="20" height="20" /> P264, P280, P302+P352, P321,P332+P313, P362
Sicherheit
P264 Nach Gebrauch gründlich waschen.
P264 Nach Gebrauch gründlich waschen.
P270 Bei Gebrauch nicht essen, trinken oder rauchen.
P280 Schutzhandschuhe/Schutzkleidung/Augenschutz tragen.
P301+P312 BEI VERSCHLUCKEN: Bei Unwohlsein GIFTINFORMATIONSZENTRUM/Arzt/... (geeignete Stelle für medizinische Notfallversorgung vom Hersteller/Lieferanten anzugeben) anrufen.
P302+P352 BEI BERüHRUNG MIT DER HAUT: Mit viel Wasser/... (Hersteller kann, falls zweckm??ig, ein Reinigungsmittel angeben oder, wenn Wasser eindeutig ungeeignet ist, ein alternatives Mittel empfehlen) waschen.
P332+P313 Bei Hautreizung: ?rztlichen Rat einholen/?rztliche Hilfe hinzuziehen.

4-Bromphenol Chemische Eigenschaften,Einsatz,Produktion Methoden

R-S?tze Betriebsanweisung:

R22:Gesundheitssch?dlich beim Verschlucken.
R36/37/38:Reizt die Augen, die Atmungsorgane und die Haut.
R20/21/22:Gesundheitssch?dlich beim Einatmen,Verschlucken und Berührung mit der Haut.

S-S?tze Betriebsanweisung:

S26:Bei Berührung mit den Augen sofort gründlich mit Wasser abspülen und Arzt konsultieren.
S37/39:Bei der Arbeit geeignete Schutzhandschuhe und Schutzbrille/Gesichtsschutz tragen.
S36:DE: Bei der Arbeit geeignete Schutzkleidung tragen.

Chemische Eigenschaften

4-Bromophenol is a pinkish-brown crystalline solid. four-sided biconical crystal precipitated from ether or chloroform. The melting point is 66.4 ℃, and a small amount of water can reduce the melting point a lot. Soluble in water, chloroform, easily soluble in ethanol, ether and glacial acetic acid, soluble in 7 parts of water.

Application

4-Bromophenol is a phenolic derivative that It can used as a reagent in Stille reactions or Intermediates of Liquid Crystals.

synthetische

4-Bromophenol is synthesized by bromination of phenol. The bromine and carbon disulfide solution was added to the phenolic carbon disulfide solution, and the addition was started below 5°C, and the addition was completed under stirring for 2 hours. Phenol and bromine are approximately equimolar ingredients. Distill the reactant to remove carbon disulfide, and then conduct fractional distillation under reduced pressure to collect fractions at 145-150°C (3.32-3.99kPa) to obtain the product. Yield 80-84%.

Synthese

m-Bromoaniline (50 g) is dissolved by boiling in a mixture of water (400 ml) and sulfuric acid (50 ml). The solution is then cooled to 10℃ and diazotized by the addition of sodium nitrite (21 g) dissolved in a small amount of water, The resulting diazonium salt solution is run in a thin stream during fifteen to thirty minutes into a boiling mixture of water (300 ml) and sulfuric acid (100 ml) contained in a flask fitted with a dropping funnel, a steam inlet tube reaching to the bottom of the flask, and an efficient condenser set for downward distillation. During the addition of the diazonium salt solution the acid solution is heated so that its volume remains constant, and steam is passed in at such a rate that at the end of the addition approximately 1 liter of distillate has been collected. Steam distillation is then continued until 2-liters of distillate has been collected. To this is added sodium chloride (150 g), and the phenol is extracted with ether, using portions of 200, 100, and 100 ml. The ether is removed from the combined extracts and the product is distilled under reduced pressure. Eight runs of 50 g, each of m-bromoaniline gave 330 g of crude m-bromophenol boiling at 100-140℃ (20-30 mm.). Redistillation gave 313 g (77.8%) of m-bromophenol which boiled at 125-130℃ at 25 mm. Treatment of this 313 g of product with sodium hydroxide and methyl sulfate gave 285 g of m-bromoanisole (4-bromophenol), b. p. 100℃ at 20 mm[1].

l?uterung methode

Crystallise the phenol from CHCl3, CCl4, pet ether (b 40-60o), or water and dry it at 70o under vacuum for 2hours. [Beilstein 6 IV 1043.]

4-Bromphenol Upstream-Materialien And Downstream Produkte

Upstream-Materialien

Downstream Produkte


4-Bromphenol Anbieter Lieferant Produzent Hersteller Vertrieb H?ndler.

Global( 579)Lieferanten
Firmenname Telefon E-Mail Land Produktkatalog Edge Rate
Hebei Weibang Biotechnology Co., Ltd
+8615531157085
abby@weibangbio.com China 8804 58
Hebei Mujin Biotechnology Co.,Ltd
+86 13288715578 +8613288715578
sales@hbmojin.com China 12825 58
Hebei Chuanghai Biotechnology Co,.LTD
+86-13131129325
sales1@chuanghaibio.com China 5887 58
Capot Chemical Co.,Ltd.
+86-(0)57185586718 +86-13336195806
sales@capot.com China 29792 60
Shanghai Daken Advanced Materials Co.,Ltd
+86-371-66670886
info@dakenam.com China 19902 58
Henan Tianfu Chemical Co.,Ltd.
+86-0371-55170693 +86-19937530512
info@tianfuchem.com China 21632 55
ATK CHEMICAL COMPANY LIMITED
+undefined-21-51877795
ivan@atkchemical.com China 32965 60
career henan chemical co
+86-0371-86658258 +8613203830695
sales@coreychem.com China 29871 58
Hubei Jusheng Technology Co.,Ltd.
18871490254
linda@hubeijusheng.com CHINA 28172 58
BTC Nantong Pharmaceuticals Technology Co.,Ltd
+8618068193575
sales4@btcpharm.com China 251 58

106-41-2(4-Bromphenol)Verwandte Suche:


  • BROMOPHENOL-4
  • 4-BROMOHYDROXYBENZENE
  • 4-Bromophenol p-Bromophenol
  • 4-BROMOPHENOL
  • AKOS BBS-00004402
  • 4-Bromophbenol
  • 4-Bromophenoles
  • p-Bromophenoles
  • p-Bromophenol 4-Bromophenol
  • 4-BROMOPHENOL, 1000MG, NEAT
  • 4-BROMOPHENOL 99+%
  • P-Bromophenlo
  • p-Bromphenol
  • p-bromophenol (4-isomer)
  • p-BROMOPHENOL pure
  • 1,4-bromophenol
  • 4-bromo-pheno
  • p-bromohydroxybenzene
  • p-bromophenicacid
  • p-bromo-pheno
  • Phenol, p-bromo-
  • Phenol,4-bromo-
  • 1-Bromo-4-hydroxybenzene
  • 4-Bromophenol,97%
  • p-Bromophenol 5g [106-41-2]
  • 4-BroMophenol, 97% 100GR
  • 4-BroMophenol, 97% 5GR
  • 4-BroMophenol [for BiocheMical Research]
  • 4-(3,3-DiMethoxy-propyl)-4'-Methyl-bicyclohexyl
  • For broMophenol
  • 4-BROMOPHENOL4-BROMOPHENOL4-BROMOPHENOL4-BROMOPHENOL
  • 4 Bromophenol CAS NO 106-41-2
  • 4-Bromophenol (100μg/mL)
  • 4-Bromophenol>
  • 4-Bromophenol [for Biochemical Research]>
  • 4-Bromophenol,>98%
  • 4-Bromophenol ISO 9001:2015 REACH
  • TIANFU-CHEM CAS:106-41-2 4-Bromophenol
  • P-BROMOPHENOL
  • Para Bromo Phenol
  • Phenol, 4-bromo-
  • 4-Bromphenol
  • NSC 4970
  • 4-Bromophenol in isopropanol
  • 106-41-2
  • BrC6H4OH
  • Organic Building Blocks
  • Phenols
  • Oxygen Compounds
  • ARYL HALIDE
  • Building Blocks
  • Building Blocks for Liquid Crystals
  • Phenols (Building Blocks for Liquid Crystals)
  • intermediates
  • alcohol| alkyl bromide
  • Bromo
  • Halogenated
  • Volatiles/ Semivolatiles
Copyright 2019 ? ChemicalBook. All rights reserved