Thionyl bromide Chemical Properties

Melting point:

-52 °C (lit.)

Boiling point:

48 °C/20 mmHg (lit.)

Density 

2.683 g/mL at 25 °C (lit.)

vapor pressure 

10 mm Hg ( 31 °C)

refractive index 

n20/D 1.675(lit.)

Flash point:

156°C

storage temp. 

2-8°C

solubility 

Miscible with benzene, toluene and ether.

form 

yellow liquid

Specific Gravity

2.683

color 

yellow liquid

Water Solubility 

hydrolyzed by H2O; miscible with benzene, chloroform, CCl4 [MER06]

Sensitive 

Moisture & Light Sensitive

Merck 

14,9347

Dielectric constant

9.0600000000000005

Dielectric constant

13.0（20℃）

CAS DataBase Reference

507-16-4(CAS DataBase Reference)

NIST Chemistry Reference

Thionyl bromide(507-16-4)

EPA Substance Registry System

Thionyl bromide (507-16-4)

Safety Information

Hazard Codes 

C

Risk Statements 

14-20/21-34

Safety Statements 

26-36/37/39-45

RIDADR 

UN 3264 8/PG 1

WGK Germany 

3

F 

8

TSCA 

Yes

HazardClass 

8

PackingGroup 

II

MSDS

• Language:English Provider:Thionyl bromide
• Language:English Provider:SigmaAldrich
• Language:English Provider:ALFA

Thionyl bromide Usage And Synthesis

Chemical Properties

Orange-yellow liquid. On prolonged standing, slowly decomposes into SO2, Br2 and S2Br2 and turns reddish; very sensitive to moisture. M.p. -49.5°C. Its thermal stability is poor and therefore SOBr2 can be distilled only in vacuum.

Uses

Thionyl Bromide is used in the preparation of carbon nanotube-phosphorylcholine polymer composite used in blood condition.

Preparation

Reaction of SO2 with Br2 in the presence of PCl3: 64 g. of SO2 is added to a mixture of 138 g. of PCl3 and 160 g. of Br2 , while the reactor is cooled. The yield, after fractional distillation, is 180 g. of SOBr2.

Hazard

Extremely destructive to tissue of mucous membranes, upper respiratory tract, eyes, and skin. Reacts vigorously with acetone to form a lachrymator. Should be handled in a fume hood.

storage

less stable than thionyl chloride and will slowly decompose, even in a stoppered container. Stable if kept dry, but reacts violently with water.

Thionyl bromide (507-16-4)Related Product Information

• 1,3-Dibromo-5,5-dimethylhydantoin
• 2,2-Bis(bromomethyl)propane-1,3-diol
• Sodium bromite
• Thionyl chloride
• Rocuronium bromide
• Sodium bromate
• Iodosobenzene
• Propionyl bromide
• Sulfuryl chloride
• Allyl bromide
• Ethidium bromide
• 1,2-Dibromopropane
• SULFURYL FLUORIDE
• ALDICARB-SULFOXIDE
• Dimethyl sulfoxide
• Methyl bromide
• SULFOXIDE
• thionyl bromide chloride