ChemicalBook Product Catalog Chemical Reagents Organic reagents Halogenated aliphatic hydrocarbons 1,2-Dibromopropane

1,2-Dibromopropane

Product Name1,2-Dibromopropane
CAS78-75-1
MFC3H6Br2
MW201.89
EINECS201-139-1
MOL File78-75-1.mol

Chemical Properties

Melting point	−55.5 °C; −67.8 °F; 217.7 K
Boiling point	139 to 143 °C; 282 to 289 °F; 412 to 416 K
Density	1.937 g mL−1
refractive index	1.519
Flash point	50 °C (122 °F; 323 K)
storage temp.	Flammables area
solubility	organic solvents: miscible
form	liquid
color	Colourless
Water Solubility	slightly soluble
Merck	14,7853
BRN	1718884
Henry's Law Constant	5.3×10^-3 mol/(m³Pa) at 25℃, Albanese et al. (1987)
Dielectric constant	4.2999999999999998
Stability	Stable. Flammable. Incompatible with strong oxidizing agents, strong bases, magnesium.
InChI	1S/C3H6Br2/c1-3(5)2-4/h3H,2H2,1H3
InChIKey	XFNJYAKDBJUJAJ-UHFFFAOYSA-N
SMILES	CC(Br)CBr
CAS DataBase Reference	78-75-1(CAS DataBase Reference)
NIST Chemistry Reference	Propane, 1,2-dibromo-(78-75-1)
EPA Substance Registry System	1,2-Dibromopropane (78-75-1)

Safety Information

Hazard Codes	Xn
Risk Statements	10-20/22-36/37/38-20/21/22-40
Safety Statements	23-24/25-36/37/39-26-16-45-27
RIDADR	UN 1993 3/PG 3
WGK Germany	3
RTECS	TX8574000
TSCA	TSCA listed
HazardClass	3
PackingGroup	III
HS Code	29033036
Storage Class	3 - Flammable liquids
Hazard Classifications	Acute Tox. 4 Inhalation Acute Tox. 4 Oral Aquatic Chronic 2 Eye Irrit. 2 Flam. Liq. 3 Skin Irrit. 2
Hazardous Substances Data	78-75-1(Hazardous Substances Data)

MSDS

Provider	Language
Propylene dibromide	English
SigmaAldrich	English
ACROS	English
ALFA	English

Usage And Synthesis

Chemical Properties

1,2-Dibromopropane is considered non-flammable and non-explosive liquid.

Uses

1,2-Dibromopropane is used in organic synthesis and solvent. It was used to study the effect of reductant concentration, reductant contact time and suspension pH on reductive dechlorination of carbon tetrachloride by soil manipulated with Fe(II) and HS-. It was used as internal standard during the determination of nitrogenous disinfection byproduct trichloronitromethane by gas chromatography mass spectrometry.

Preparation

1,2-Dibromopropane is synthesized from bromopropane by bromination.
First mix bromopropane and iron powder, heat to 40-50°C, slowly add bromine, and continue to reflux for 2h after adding. Then, the iron slag was filtered off, and the filtrate was washed several times with water, once with 5% sodium carbonate solution, and then with 5% sodium thiosulfate solution to remove free bromine. Dry with anhydrous calcium chloride. Fractional distillation, collecting 139-142 ℃ fraction is the finished product of 1,2-dibromopropane.

Application

Photodissociation dynamics of 1,2-dibromopropane at 234 and 265 nm has been investigated by using velocity map ion imaging method. 1,2-Dibromopropane was used to study the effect of reductant concentration, reductant contact time and suspension pH on reductive dechlorination of carbon tetrachloride by soil manipulated with Fe(II) andHS-. It was used as internal standard during the determination of nitrogenous disinfection byproduct trichloronitromethane by gas chromatography mass spectrometry.

General Description

1,2-dibromopropane is a colorless liquid. Prepared from propyl bromide and Br in the presence of AlCl3 or AlBr3. (NTP, 1992)

Air & Water Reactions

Insoluble in water.

Reactivity Profile

Halogenated aliphatic compounds, such as 1,2-Dibromopropane, are moderately or very reactive. Reactivity generally decreases with increased degree of substitution of halogen for hydrogen atoms. Materials in this group may be incompatible with strong oxidizing and reducing agents. Also, they may be incompatible with many amines, nitrides, azo/diazo compounds, alkali metals, and epoxides. 1,2-Dibromopropane is considered nonflammable.

Fire Hazard

1,2-Dibromopropane is considered non-flammable.

Biochem/physiol Actions

1,2-Dibromopropane induces hepatotoxicity and immunotoxicity in female BALB/c mice.

1,2-Dibromopropane

Chemical Properties

Safety Information

MSDS

Usage And Synthesis

Preparation Products And Raw materials

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