- 1,4-Dibromobenzene
-
- $160.00 / 1KG
-
2024-12-18
- CAS:106-37-6
- Min. Order: 1KG
- Purity: 98%
- Supply Ability: 20 tons
- 1, 4-Dibromobenzene
-
- $180.00 / 1kg
-
2024-12-18
- CAS:106-37-6
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 20ton
- 1,4-Dibromobenzene
-
- $10.00 / 1kg
-
2024-12-17
- CAS:106-37-6
- Min. Order: 1kg
- Purity: 99%
- Supply Ability: 10000
|
| | 1,4-Dibromobenzene Basic information |
| | 1,4-Dibromobenzene Chemical Properties |
| Melting point | 83-87 °C (lit.) | | Boiling point | 219 °C (lit.) | | density | 1.841 g/mL at 25 °C (lit.) | | vapor pressure | 0.134 at 35 °C (Hine et al., 1963) | | refractive index | 1.5742 | | Fp | 219-220°C | | storage temp. | Inert atmosphere,Room Temperature | | solubility | Soluble in alcohol, benzene, chloroform, toluene and carbon tetrachloride. Insoluble in ether. | | form | Crystals | | color | Colorless to almost white | | Water Solubility | practically insoluble | | λmax | 282nm(EtOH)(lit.) | | Merck | 14,3019 | | BRN | 1904543 | | Henry's Law Constant | 5.0 x 10-4 atm?m3/mol at 25 °C (Hine and Mookerjee, 1975) | | Dielectric constant | 8.8（20℃） | | Stability: | Stable. Combustible. Incompatible with strong oxidizing agents. | | InChIKey | SWJPEBQEEAHIGZ-UHFFFAOYSA-N | | CAS DataBase Reference | 106-37-6(CAS DataBase Reference) | | NIST Chemistry Reference | Benzene, 1,4-dibromo-(106-37-6) | | EPA Substance Registry System | p-Dibromobenzene (106-37-6) |
| Hazard Codes | Xi | | Risk Statements | 36/37/38 | | Safety Statements | 24/25-36-26 | | RIDADR | UN 2711 | | WGK Germany | 2 | | RTECS | CZ1791000 | | TSCA | Yes | | HazardClass | 9 | | PackingGroup | III | | HS Code | 29036990 | | Hazardous Substances Data | 106-37-6(Hazardous Substances Data) | | Toxicity | Acute oral LD50 for mice 120 mg/kg (quoted, RTECS, 1985). |
| | 1,4-Dibromobenzene Usage And Synthesis |
| Chemical Properties | Dibromobenzene is a heavy colorless liquid.
Pleasant aromatic odor. | | Chemical Properties | 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. | | Uses | Solvent for oils; ore flotation; motor fuels; organic synthesis. | | Uses | 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. | | Definition | ChEBI: 1,4-dibromobenzene is a dibromobenzene. | | Potential Exposure | Dibromobenzene is used as a solvent
for oils and in organic synthesis. | | Shipping | 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. | | Purification Methods | 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.] | | Incompatibilities | 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. | | Waste Disposal | 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-Dibromobenzene Preparation Products And Raw materials |
| Preparation Products | L-Phenylalanine-->Ambroxol-->Vat Black 8-->4-Morpholinophenylboronic acid-->1,4-Phenylenebisboronic acid-->4-Chloromandelic acid-->4-Bromophenoxybenzene-->1-(4-Bromophenyl)hexane-->N-(4-bromophenyl)-N-(9,9-dimethyl-9H-fluoren-2-yl)-9,9-dimethyl-9H-fluoren-2-amine-->1,4-Bis(dimethylsilyl)benzene-->1-(4-Bromophenyl)-naphthlene-->4-(NAPHTHALEN-2-YL)PHENYLBORONIC ACID
-->4-BROMO-4'-METHOXYBENZOPHENONE-->1-Bromo-4-propylbenzene-->2,5-DIBROMOBIPHENYL-->4'-(4,4,5,5-Tetramethyl-1,3,2-dioxaborolan-2-yl)biphenyl-4-carbonitrile-->1 4-BIS(DIPHENYLAMINO)BENZENE |
|