Is dibenzofuran volatile?

It is a volatile white solid that is soluble in nonpolar organic solvents. It is obtained from coal tar, where it exists as a 1% component….Dibenzofuran.

What is dibenzofuran used for?

Dibenzofuran is a white, crystalline (sand-like) powder, which is derived from Coal Tar. It is used as an insecticide and to make other chemicals.

Is dibenzofuran aromatic?

Dibenzofuran is a heterocyclic organic compound with the chemical structure shown at right. It is an aromatic compound that has two benzene rings fused to a central furan ring.

Is dibenzofuran a dioxin?

Abstract. Polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) are a class of chemical compounds that are largely of anthropogenic origin. Tetrachlorodibenzo-p-dioxin (TCDD), the most toxic dioxin, also called “the most toxic man-made chemical,” has an estimated half-life of 7–11 years in humans.

Is dibenzofuran a PAH?

A reconstituted PAH mixture containing 17 congeners, including dibenzofuran, and the 2-, 3-, and 4-ring PAH fractions all caused a dose-dependent decrease in the splenic plaque-forming cell response of B6C3F1 mice to sheep red blood cells or trinitrophenyl-lipopolysaccharide antigens (Harper et al., 1996).

What is the structure of benzofuran?

Benzofuran is the heterocyclic compound consisting of fused benzene and furan rings. This colourless liquid is a component of coal tar. Benzofuran is the “parent” of many related compounds with more complex structures.

What do dioxins do?

Dioxins are highly toxic and can cause cancer, reproductive and developmental problems, damage to the immune system, and can interfere with hormones. Dioxins are found throughout the world in the environment , and they accumulate in food chain s , concentrating mainly in the fatty tissue of animals .

What does biphenyl smell like?

Biphenyl is insoluble in water, but soluble in typical organic solvents. The biphenyl molecule consists of two connected phenyl rings….Biphenyl.

What are the symptoms of dioxin?

Short-term exposure of humans to high levels of dioxins may result in skin lesions, such as chloracne and patchy darkening of the skin, and altered liver function. Long-term exposure is linked to impairment of the immune system, the developing nervous system, the endocrine system and reproductive functions.

Which PCBs are dioxin like?

They include:

• Polychlorinated dibenzo-p-dioxins (PCDDs), or simply dioxins.
• Polychlorinated dibenzofurans (PCDFs), or furans.
• Polychlorinated biphenyls (PCBs), derived from biphenyl, of which 12 are “dioxin-like”.
• Polybrominated compounds of the above classes may have similar effects.

Which one is the example of benzofuran derivative?

This colourless liquid is a component of coal tar. Benzofuran is the “parent” of many related compounds with more complex structures. For example, psoralen is a benzofuran derivative that occurs in several plants….Benzofuran.

Is benzofuran soluble in water?

Insol in water and aq alkaline solns; miscible with benzene, petroleum ether, absolute alcohol, ether. Soluble in ethanol.

Where can you find dibenzofuran in the environment?

Dibenzofuran is a common environmental pollutant. It has been found in air and groundwater. Some major sources of exposure for the general population are combustion (municipal waste incineration and automobile exhaust), chemical industry wastes, agricultural and industrial chemicals, and aqueous chlorination.

What kind of oil is dibenzofuran made out of?

Dibenzofuran is a component of coal tar (mainly in the wash or creosote oil fraction in the primary distillation of coal tar) which is made into creosote which is widely used as a wood preservative(2,3).

How is dibenzofuran used in the treatment of wood?

Dibenzofuran is a component of coal tar (mainly in the wash or creosote oil fraction in the primary distillation of coal tar) which is made into creosote which is widely used as a wood preservative(2,3). Dibenzofuran may be present in emissions from creosote-treated wood(SRC).

How much Dibenzofuran is in coal tar?

Dibenzofuran is present in coal tar at a level of about 1%. It is recovered from a wash oil fraction that boils between 275 and 290 deg C (containing about 30% dibenzofuran).