1,4-дибромбензола химические свойства, назначение, производство
Химические свойства
1,4-dibromobenzene is a dibromobenzene. It is a white or off-white powder. freely soluble in hot ethanol, acetone, ether and hot benzene, soluble in ethanol and benzene, insoluble in water. It has a strong smell similar to that of the lighter chlorine analogue. It can be used as a precursor to the dye 6,6-Dibromoindigo.
Использование
1,4-Dibromobenzene is used in the synthesis of 2,5-dibromoacetophenone, triarylamines and trans- stilbenes. It is widely used as a heavy liquid solvent as well as a motor oil additive. It finds application as an intermediate in the manufacture of organic chemicals such as dyes, pharmaceuticals and flame retardants for polymeric materials.
Возможный контакт
Dibromobenzene is used as a solvent
for oils and in organic synthesis.
Перевозки
UN1993 Flammable liquids, n.o.s., Hazard
Class: 3; Labels: 3-Flammable liquid, Technical Name
Required. UN2514 Bromobenzene, Hazard Class: 3;
Labels: 3-Flammable liquid.
Методы очистки
Steam distil the dibromobenzene , then crystallise it from EtOH or MeOH and dry it in the dark under vacuum. Purify it by zone melting. [Beilstein 5 IV 683.]
Несовместимости
Extremely flammable. May form
explosive mixture with air. Incompatible with oxidizers
(chlorates, nitrates, peroxides, permanganates, perchlorates,
chlorine, bromine, fluorine, etc.); contact may cause fires
or explosions. Keep away from alkaline materials, strong
bases, strong acids, oxoacids, and epoxides.
Утилизация отходов
Use a licensed professional
waste disposal service to dispose of this material. All federal, state, and local environmental regulations must be
observed. Consult with environmental regulatory agencies
for guidance on acceptable disposal practices. Incineration
with flue gas scrubbing.
1,4-дибромбензола препаратная продукция и сырье
сырьё
препарат
L-фенилаланин
1,4-Benzenediboronic кислота
4-морфолинофенилборная кислота
Vat Black 8
4-хлорминдальной кислоты
Амброксол
4-бромдифенил эфир
1-(4-бромфенил)гексан
N-(4-bromophenyl)-N-(9,9-dimethyl-9H-fluoren-2-yl)-9,9-dimethyl-9H-fluoren-2-amine
1,4-бис (диметилсилил) бензол
1-(4-Bromophenyl)-naphthlene
4- (НАФТАЛЕН-2-YL) ФЕНИЛБОРОНОВАЯ КИСЛОТА
4-БРОМО-4'-МЕТОКСИБЕНЗОФЕНОН
1-Бром-4-н-пропилбензол
2,5-ДИБРОМОБИФЕНИЛ
4'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)biphenyl-4-carbonitrile
1 4-БИС(ДИФЕНИЛАМИНО)БЕНЗОЛ