Table of Contents
Is xylene a petroleum product?
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 boiling point of M Xylene?
282.2°F (139°C)m-Xylene / Boiling point
How do you make xylene?
At an industrial level xylenes are synthesized by the process of methylation of benzene and toluene. The obtained Xylol contains 40 to 65% of m-xylene and approximately 20% of o-xylene, 20% of p-xylene and 20% of ethylbenzene.
Do you mix xylene with water?
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.
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.
What does M stand for in m-xylene?
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 are the uses of p-xylene?
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.
Does xylene mix with water?
How toxic is xylene?
Exposure to xylene can irritate the eyes, nose, skin, and throat. Xylene can also cause headaches, dizziness, confusion, loss of muscle coordination, and in high doses, death. Workers may be harmed from exposure to xylene.
What can xylene be used for?
It is primarily used as a solvent (a liquid that can dissolve other substances) in the printing, rubber, and leather industries. Along with other solvents, xylene is also widely used as a cleaning agent, a thinner for paint, and in varnishes.
How long do you leave xylene on concrete?
Take a small amount of Xylene and place it on the area that is still covered with the sealer and let it stand for 20 seconds. Remove any excess Xylene and touch the area.
How long does xylene take to dry?
The Xylene needs to be completely removed before applying more sealer. If you only used a light small amount then it may evaporate completely. Otherwise, you need to allow it to dry for 24 hours and then gently wash the xylene off with clean water and allow to completely dry prior to applying more sealer.
What are xylene xylenes?
Xylenes are produced mainly as part of the BTX aromatics ( benzene, toluene, and xylenes) extracted from the product of catalytic reforming known as reformate . Several million tons are produced annually. In 2011, a global consortium began construction of one of the world’s largest xylene plants in Singapore.
What is p xylene used for?
p -Xylene is the principal precursor to terephthalic acid and dimethyl terephthalate, both monomers used in the production of polyethylene terephthalate (PET) plastic bottles and polyester clothing. 98% of p -xylene production, and half of all xylenes produced is consumed in this manner. o -Xylene is an important precursor to phthalic anhydride.
How can we prevent occupational health issues from xylene exposure?
The use of impervious gloves and masks, along with respirators where appropriate, is recommended to avoid occupational health issues from xylene exposure. Xylenes are metabolized to methylhippuric acids.
What is the use of xylene in microscopy?
Xylene is used in the laboratory to make baths with dry ice to cool reaction vessels, and as a solvent to remove synthetic immersion oil from the microscope objective in light microscopy. In histology, xylene is the most widely used clearing agent. Xylene is used to remove paraffin from dried microscope slides prior to staining.