Bromine

Base Information

• Chemical Name: Bromine
• CAS No.: 7726-95-6
• Deprecated CAS: 23724-81-4
• Molecular Formula: Br2
• Molecular Weight: 159.808
• Hs Code.: 2801302000
• European Community (EC) Number: 231-778-1
• ICSC Number: 0107
• UN Number: 1744
• UNII: SBV4XY874G
• DSSTox Substance ID: DTXSID1035238
• Nikkaji Number: J2.253.101H
• Wikipedia: Bromine
• Wikidata: Q2685750
• NCI Thesaurus Code: C163632
• Mol file: 7726-95-6.mol

Synonyms:Bromine;Bromine 79;Bromine-79

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Chemical Property of Bromine

Chemical Property:

• Appearance/Colour: red brown liquid
• Vapor Pressure: 190mmHg at 25°C
• Melting Point: -7.2 °C(lit.)
• Refractive Index: 1.55
• Boiling Point: 58.7 °C
• Flash Point: 113°C
• PSA: 0.00000
• Density: 2.91 g/cm³
• LogP: 1.69120
• Water Solubility.: 35 g/L (20℃)
• XLogP3: 1.9
• Hydrogen Bond Donor Count: 0
• Hydrogen Bond Acceptor Count: 0
• Rotatable Bond Count: 0
• Exact Mass: 159.83463
• Heavy Atom Count: 2
• Complexity: 0
• Transport DOT Label: Corrosive Poison Inhalation Hazard

Purity/Quality:

Safty Information:

• Pictogram(s): T+,C,N
• Hazard Codes: T+:Very toxic
• Statements: R26:; R35:; R50:
• Safety Statements: S26:; S45:; S61:; S7/9:

MSDS Files:

SDS file from LookChem

Total 1 MSDS from other Authors

Useful:

• Chemical Classes: Toxic Gases & Vapors -> Other Toxic Gases & Vapors
• Canonical SMILES: BrBr
• Recent ClinicalTrials: Study of Cobicistat-Boosted Atazanavir (ATV/co), Cobicistat-Boosted Darunavir (DRV/co) and Emtricitabine/Tenofovir Alafenamide (F/TAF) in Children With HIV
• Inhalation Risk: A harmful contamination of the air will be reached very quickly on evaporation of this substance at 20 °C.
• Effects of Short Term Exposure: Lachrymation. The substance is corrosive to the eyes, skin and respiratory tract. Corrosive on ingestion. Inhalation may cause asthma-like reactions. Inhalation may cause pneumonitis. Inhalation may cause lung oedema, but only after initial corrosive effects on eyes and/or airways have become manifest. The effects may be delayed. Medical observation is indicated. Exposure could cause death.
• Effects of Long Term Exposure: The substance may have effects on the respiratory tract and lungs. This may result in impaired functions.

Technology Process of Bromine

There total 758 articles about Bromine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield:

Acetyl bromide (506-96-7) + p-benzoquinone (106-51-4) → 2,5-dibromohydroquinone diacetate (40101-03-9) + hydrogen bromide (10035-10-6,12258-64-9) + bromine (7726-95-6)

Guidance literature:

Reference yield:

ethanol (64-17-5) + water (7732-18-5) + bromoacetic acid (79-08-3) → hydrogen bromide (10035-10-6,12258-64-9) + bromine (7726-95-6)

Guidance literature:

in Gegenwart von KOH;

Reference yield:

1,1,2,2-tetrabromoethane (79-27-6) → 1,1,2-tribromoethylene (598-16-3) + hydrogen bromide (10035-10-6,12258-64-9) + bromine (7726-95-6)

Guidance literature:

at 190 ℃;

upstream raw materials:

N-Bromosuccinimide

N-(bromomethyl)phtalimide

1-bromopyrrolidin-2-one

hydrogen bromide

Downstream raw materials:

pyridine

2-thenyl bromide

α-bromopropionyl bromide

2-bromocyclohexanone

Refernces

• 1、 Olsen, J. C.,Ryan, E. P.. "". . p. 2215 - 2218. Retrieved 1932.
• 2、 Patrin, J. C.,Weaver, J. H.. "". . . Retrieved 1993.
• 3、 Abbatt,Oldridge,Symington,Chukalovskiy,McWhinney,Sjostedt,Cox. "Release of gas-phase halogens by photolytic generation of OH in frozen halide-nitrate solutions: An active halogen formation mechanism?". . p. 6527 - 6533. Retrieved 2010.
• 4、 Harries, G. S.,Payne, D. S.. "". . . Retrieved 1958.
• 5、 Jackson, C. G.. "". . p. 1066 - 1071. Retrieved 1911.
• 6、 Luckey, G. W.. "". . p. 791 - 796. Retrieved 1953.
• 7、 Masters, J. I.. "". . p. 611 - 613. Retrieved 1969.
• 8、 Richards, T. W.,Hoenigschmid, O.. "". . . Retrieved 1910.
• 9、 Moser, Maximilian,Rodriguez-Garcia, Laura,Amrute, Amol P.,Perez-Ramirez, Javier. "Catalytic bromine recovery: An enabling technology for emerging alkane functionalization processes". . p. 3520 - 3523. Retrieved 2013.
• 10、 Biswas, Sudeshna,Mukherjee, Kallol,Basu, Samarendra Nath,Mukherjee, Dulal Chandra,Moulik, Satya Priya. "Oscillatory reaction of bromate-gallic acid. A calorimetric and electrometric study in aquo-organic solvent media". . p. 575 - 592. Retrieved 2001.