What is p-xylene used for?
Paraxylene is widely used as a feedstock (or “building block”) to manufacture other industrial chemicals, notably terephthalic acid (TPA), purified terephthalic acid (PTA) and dimethyl-terephthalate (DMT). TPA, PTA and DMT are used to manufacture polyethylene terephthalate (PET) polyesters, a kind of plastic.
Why is xylene used in Diels Alder reaction?
Xylene (dimethylbenzene) is used as a high-boiling solvent so that the reaction will work fast enough to complete conveniently. The “cyclohexene” ring produced in every Diels-Alder reaction is hard to visualize, but consists of the six labeled atoms in the product.
What is another name for p-xylene?
p-dimethylbenzene
p-Xylene
| Names | |
|---|---|
| Other names p-Xylene, p-dimethylbenzene; p-xylol; 1,4-xylene; p-methyltoluene; paraxylene; chromar; scintillar; 4-methyltoluene; NSC 72419; or 1,4-dimethylbenzene. | |
| Identifiers | |
| CAS Number | 106-42-3 |
| 3D model (JSmol) | Interactive image |
Are there different types of xylene?
There are three forms of xylene in which the methyl groups vary on the benzene ring: meta-xylene, ortho-xylene, and para-xylene (m-, o-, and p-xylene). These different forms are referred to as isomers.
Does xylene remove paint?
Xylene thinner is frequently used for removing paint. When handled safely and in a well-ventilated area, xylene can be a very effective paint remover.
Why is xylene a good solvent?
Xylene is a hydrocarbon composed solely of carbon and hydrogen and like other hydrocarbons it does not dissolve well in water. This makes it an excellent solvent for hydrocarbons and many hydrophobic or water-insoluble compounds like greases and various pesticides and herbicides.
What is the boiling point of xylene?
282.2°F (139°C)
Xylene/Boiling point
Is xylene lighter than air?
Xylene is a clear, colorless liquid. It is volatile, readily producing flammable and toxic concentrations at room temperature. Its vapor is heavier than air and may accumulate in low-lying areas.
What is the difference between xylene and o xylene?
The key difference between O-xylene and P-xylene is that O-xylene contains two methyl groups attached to the benzene ring at adjacent substituent positions, whereas P-xylene contains two methyl groups attached to the benzene ring at opposite substituent positions. The chemical formula of xylene is (CH3)2C6H4.
Is p-xylene a hydrocarbon?
Laboratory Chemical Safety Summary (LCSS) p-Xylene is an aromatic hydrocarbon based on benzene with two methyl substituents with the chemical formula C8H10 or C6H4(CH3)2. P-XYLENE is a colorless watery liquid with a sweet odor. P-xylene is a xylene with methyl groups at positions 1 and 4.
What is xylene used for?
In terms of volume, xylene is one of the top 30 chemicals produced in the United States. Xylene is primarily used as a solvent (a liquid that can dissolve other substances), particularly in the printing, rubber and leather industries. Xylene is also used as:
What is the color of xylene?
Xylene is a colorless liquid that had a sweet odor. Xylene is flammable and practically insoluble. Xylene is primarily a synthetic chemical; however, it can occur naturally in petroleum, coal tar, and during forest fires.
What are the side effects of p-xylene?
Vapors cause headache and dizziness. Liquid irritates eyes and skin. If taken into lungs, causes severe coughing, distress, and rapidly developing pulmonary edema. If ingested, causes nausea, vomiting, cramps, headache, and coma. Can be fatal. Kidney and liver damage can occur. (USCG, 1999) P-XYLENE may react with oxidizing materials.
