1,2-DIBROMOBENZENE

Bromobenzenes are organic halogen compounds of cyclic aromatics formed by replacing hydrogen atoms in benzene by 1-6 atoms of bromine. There are 12 compounds of chlorobenzenes of mono-, three isomeric substances each of di-, tri-, and tetra-, as well as penta- and hexachlorobenzene.

Lower bromobenzenes are clear liquid at room temperature while higher bromobenzenes are white to yellowish solids. They are practically insoluble in water and denser than water. . The water solubility is decreasing if more brominated. The flammability of bromobenzenes are very low, the octanol/water partition coefficients are moderate to high, increasing with more brominated, and vapour pressures are low to moderate, decreasing with more bromobenzenes. The taste and odour thresholds are low, decreasing with lower bromobenzenes. The commercial bromobenzenes are used as heavy liquid solvents, motor oil additives. and as an intermediates to manufacture organic chemicals including pharmaceuticals, pesticides and flame retardants for polymeric materials.

1,2-DIBROMOBENZENE
PRODUCT IDENTIFICATION
CAS NO	583-53-9
EINECS NO.	209-507-3
FORMULA	C₆H₄Br₂
MOL WT.	235.92
H.S. CODE	2903.69
TOXICITY
SYNONYMS	o-dibromobenzene; o-Bromobenzene bromide;
o`-Bromophenyl bromide;`
SMILES
CLASSIFICATION
PHYSICAL AND CHEMICAL PROPERTIES
PHYSICAL STATE	pale yellow liquid
MELTING POINT	4 - 6 C
BOILING POINT	224 C
SPECIFIC GRAVITY	1.95 - 1.96
SOLUBILITY IN WATER	Insoluble
pH
VAPOR DENSITY
NFPA RATINGS	Health: 2; Flammability: 2; Reactivity: 0
AUTOIGNITION
REFREACTIVE INDEX
FLASH POINT
STABILITY	Stable under ordinary conditions.
GENERAL DESCRIPTION & APPLICATIONS
Bromobenzenes are organic halogen compounds of cyclic aromatics formed by replacing hydrogen atoms in benzene by 1-6 atoms of bromine. There are 12 compounds of chlorobenzenes of mono-, three isomeric substances each of di-, tri-, and tetra-, as well as penta- and hexachlorobenzene. Monobromobenzene (CAS RN: 108-86-1, Melting point: -31 C, Boiling point: 155 C) 1,2-dibromobenzene (CAS RN: 583-53-9, Melting point: 5 C Boiling point: 224 C) 1,3-dibromobenzene ( CAS RN: 108-36-1, Melting point: -7 C Boiling point: 218 C) 1,4-dibromobenzene (CAS RN: 106-37-6, Melting point: 87 C Boiling point: 219 C) 1,2,3-Tribromobenzene (CAS RN: n/a) 1,2,4-Tribromobenzene (CAS RN: 615-54-3, Melting point: 43 C Boiling point: 275 C) ) 1,3,5-tribromobenzene (CAS RN: 626-39-1, Melting point: 120 C Boiling point: 271 C) 1,2,3,4-Tetrabromobenzene (CAS RN: n/a) 1,2,3,5-Tetrachlorobenzene (CAS RN: 634-89-9, Melting point: , Boiling point: n.a) 1,2,4,5-Tetrabromobenzene (CAS RN: 636-28-2, Melting point: 180-182 C, Boiling point: n/a) Pentachlorobenzene (CAS RN: 608-93-5, Melting point: 84 - 87 C, Boiling point: 275-277 C) Hexachlorobenzene (CAS RN: 87-82-1, Melting point: )>300 C, Boiling point: n/a ) Lower bromobenzenes are clear liquid at room temperature while higher bromobenzenes are white to yellowish solids. They are practically insoluble in water and denser than water. . The water solubility is decreasing if more brominated. The flammability of bromobenzenes are very low, the octanol/water partition coefficients are moderate to high, increasing with more brominated, and vapour pressures are low to moderate, decreasing with more bromobenzenes. The taste and odour thresholds are low, decreasing with lower bromobenzenes. The commercial bromobenzenes are used as heavy liquid solvents, motor oil additives. and as an intermediates to manufacture organic chemicals including pharmaceuticals, pesticides and flame retardants for polymeric materials.
SALES SPECIFICATION
APPEARANCE	pale yellow liquid
ASSAY	98.0% min
TRANSPORTATION
PACKING	50kgs, 250kgs in drum
HAZARD CLASS	6.1 (Packing Group: II )
UN NO.	2811
OTHER INFORMATION
`Hazard Symbols: XI, Risk Phrases:`36/37/38`, Safety Phrases:` 24/25