What is the structure of xylene?
C₈H₁₀Xylene / Formula
What two groups in the meta position does m-xylene have?
m-Xylene (meta-xylene) is an aromatic hydrocarbon. It is one of the three isomers of dimethylbenzene known collectively as xylenes. The m- stands for meta-, indicating that the two methyl groups in m-xylene occupy positions 1 and 3 on a benzene ring.
What is meta xylene used for?
M-xylene is an aromatic hydrocarbon, based on benzene with two methyl substituents. It is an isomer of xylene. Xylene occurs naturally in petroleum and coal tar, and is major component of gasoline and fuel oil. Xylene is used mainly as a solvent and in the printing, rubber, and leather industries.
What are the three xylenes?
Summary: 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.
How xylene is produced?
Xylene is an aromatic hydrocarbon that occurs naturally in petroleum and coal tar and is a constituent of smoke from most combustion sources. In the U.S., xylene is produced primarily using catalytic reforming of petroleum (approximately 95%).
What is the price of xylene?
The price of 10% Ortho Xylene products is between ₹55 – ₹60 per Kg.
How do you make meta xylene?
A process for producing m-xylene, which comprises isomerizing a hydrocarbon material containing o-xylene as a main ingredient in the presence of a catalyst composition selected from the group consisting of zeolite ZSM-4, zeolite omega and mixtures thereof at a temperature of about 100° to 200° C. to selectively form m- …
How many NMR signals does m-xylene have?
Each isomer of xylene produces a slightly different 1H NMR spectrum. The highly symmetric p-xylene produces two signals, one aliphatic signal due to the substituent methyl protons, and a second aromatic proton signal.
Why is xylene used as a solvent?
Xylene is commonly used as a paint solvent because it’s excellent at removing old paint on a variety of surfaces. It’s also effective at removing greasy stains, resins, enamels, and glue. As a paint thinner, this chemical has some advantages over other paint thinning agents like toluene.
Where is xylene produced?
What is xylene made from?
Xylenes are produced by the methylation of toluene and benzene. Commercial or laboratory-grade xylene produced usually contains about 40–65% of m-xylene and up to 20% each of o-xylene, p-xylene and ethylbenzene.
What is mix xylene?
Mixed xylenes are colorless liquids that are practically insoluble in water and have a sweet odor. ( 1) The odor threshold for m-xylene is 1.1 ppm. ( 4) The chemical formula for mixed xylenes is C H , and the molecular weight is 106.16 g/mol. (
What is the flash point of xylene?
Flash point: 32°C c.c. The substance can be absorbed into the body by inhalation, through the skin and by ingestion.
What is M&P-xylene?
Chemical Abstracts Service (CAS) Number: 1330-20-7. General Information. Commercial or mixed xylene usually contains about 40-65% m-xylene and up to 20% each of o- xylene and p-xylene and ethylbenzene. Mixed xylenes are colorless liquids that are practically insoluble in water and have a sweet odor.
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.
How is M-Xylene produced?
Industrial production
Xylenes are produced by the methylation of toluene and benzene. Commercial or laboratory-grade xylene produced usually contains about 40–65% of m-xylene and up to 20% each of o-xylene, p-xylene and ethylbenzene.
What happens when you mix xylene and water?
Xylene evaporates and burns easily. Xylene does not mix well with water; however, it does mix with alcohol and many other chemicals. Most people begin to smell xylene in air at 0.08– 3.7 parts of xylene per million parts of air (ppm) and in water at 0.53–1.1 ppm.
How is xylene produced?
Xylene is an aromatic hydrocarbon that occurs naturally in petroleum and coal tar and is a constituent of smoke from most combustion sources. In the U.S., xylene is produced primarily using catalytic reforming of petroleum (approximately 95%). There were 20 production facilities for mixed xylenes in the U.S. in 1989.
How is xylene formed?
How is xylene produced? Xylene and xylene compounds are usually formed by toluene and benzene methylation. Commercial or laboratory-grade xylene that is produced typically contains around 40-65% of m-xylene and up to 20% of o-xylene, p-xylene, and ethylbenzene respectively.
How is xylene prepared?
It is produced by catalytic reforming as well as by coal carbonization. It also occurs naturally in crude oil, aircraft fuels, and gasoline. The mixture of xylene is slightly greasy and has a sweet smell, usually encountered as a solvent.
What type of chemical is xylene?
Xylene is also known as xylol or dimethylbenzene. Xylene is primarily a synthetic chemical. Chemical industries produce xylene Page 2 2 XYLENE 1. PUBLIC HEALTH STATEMENT from petroleum. Xylene also occurs naturally in petroleum and coal tar and is formed during forest fires, to a small extent.
What is the difference between xylene and mixed xylene?
The mixture is referred to as both xylene and, more precisely, xylenes. Mixed xylenes refers to a mixture of the xylenes plus ethylbenzene. The four compounds have identical empirical formulas C 8H 10. Typically the four compounds are produced together by various catalytic reforming and pyrolysis methods.
At what temperature does xylene evaporate?
Properties
| Xylene isomers | ||
|---|---|---|
| General | ||
| Soluble in non-polar solvents such as aromatic hydrocarbons | ||
| Melting point | −47.4 °C (−53.3 °F; 226 K) | −25 °C (−13 °F; 248 K) |
| Boiling point | 138.5 °C (281.3 °F; 412 K) | 144 °C (291 °F; 417 K) |
Is xylene soluble in water or oil?
Properties
| Xylene isomers | ||
|---|---|---|
| General | ||
| Density and phase | 0.864 g/mL, liquid | 0.86 g/mL, liquid |
| Solubility in water | Practically insoluble | |
| Soluble in non-polar solvents such as aromatic hydrocarbons |
What is the difference between Xylol and xylene?
Xylenes are one of the highest-volume chemicals produced and used by industry. A mixture of all three isomers is termed xylol. It is a colorless, flammable, liquid hydrocarbon with a characteristic aromatic odor. It is commonly found in products such as varnish, ink, paint thinners, degreasers, and insecticides.