Xylene
Synonym(s):Xylenes in dimethyl sulfoxide;Xylenes solution
- CAS NO.:1330-20-7
- Empirical Formula: C8H10
- Molecular Weight: 106.17
- MDL number: MFCD00077264
- EINECS: 215-535-7
- SAFETY DATA SHEET (SDS)
- Update Date: 2023-12-26 17:07:23
![Xylene Structural](https://img.chemicalbook.in/CAS/GIF/1330-20-7.gif)
What is Xylene?
Description
Xylene is used as a solvent. In this application, the mixture of isomers is often referred to
as xylenes or xylol. Solvent xylene often contains a small percentage of ethylbenzene. Like
the individual isomers, the mixture is colourless, sweet smelling, and highly flammable.
Application of xylene is extensive and includes, but is not limited to, printing, rubber, and
leather industries.
Similarly, it is used as a cleaning agent for steel and silicon wafers. In the petroleum
industry, xylene is also a frequent component of paraffin solvents, used when the tubing
becomes clogged with paraffin wax. Xylene is incompatible with strong oxidisers and is
known to cause fires and explosions. There are three forms of xylene in which the methyl
groups vary on the benzene ring: (i) meta-xylene, (ii) ortho-xylene, and (iii) para-xylene.
These forms are referred to as isomers. Xylene is a colourless, sweet-smelling liquid.
Xylene occurs naturally in petroleum and coal tar. Chemical industries produce xylene
from petroleum. It is also used as a cleaning agent and a thinner for paint and in paints,
in glues, in printing inks, and in varnishes. Xylene evaporates quickly from the soil and
surface water into the air.
Description
Xylenes are a mixture of the three isomers of dimethylbenzene (1,2-Dimethylbenzene, 1,3-Dimethylbenzene, and 1,4-Dimethylbenzene). Xylenes are used in organic chemistry primarily as a solvent. Replacing toluene (bp: 110 C) with xylenes (bp: 138 C) is sometimes useful if you want a similar solvent with a higher boiling point.
The Uses of Xylene
Xylene is used as a chemical feedstock in the chemical industry. Xylenes can undergooxidation where the side methyl groups are oxidized to give a carboxyl group (COOH)yielding a carboxylic acid. The particular acid produced depends on the isomer oxidized. Wheno-xylene is oxidized phthalic acid is produced, and when p-xylene is oxidized terephthalic acidresults. Terephthalic acid is one of the main feedstocks in making polyesters.Terephthalic acid reacts with ethylene glycol to form the ester polyethylene terephthalate(PET). PET is one of the most common plastics used as food and beverage containers. PETcontainers contain the recycling symbol with a number 1. PET is marketed using a numberof commercial names; the most generic of these is polyester. It is also the material known asDacron. Mylar is PET in the form of thin films. Although all three isomers of xylene are usedas chemical feedstocks, the greatest demand is for para-xylene to produce terephthalic acid.The smallest demand is for meta-xylene. Approximately 30 million tons of xylenes are usedannually worldwide.
What are the applications of Application
Xylene, mixed isomers is a mix of isomers used in histology
Properties of Xylene
Melting point: | -34 °C |
Boiling point: | 137-140 °C (lit.) |
Density | 0.86 g/mL at 25 °C (lit.) |
Flash point: | 77 °F(lit.) |
storage temp. | Flammables area |
form | Liquid |
appearance | Colorless liquid |
color | APHA: ≤10 |
Water Solubility | <0.1 g/L (20 ºC) |
Safety information for Xylene
Signal word | Danger |
Pictogram(s) |
![]() Flame Flammables GHS02 ![]() Exclamation Mark Irritant GHS07 ![]() Health Hazard GHS08 |
GHS Hazard Statements |
H226:Flammable liquids H304:Aspiration hazard H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation H373:Specific target organ toxicity, repeated exposure H412:Hazardous to the aquatic environment, long-term hazard |
Precautionary Statement Codes |
P210:Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P273:Avoid release to the environment. P280:Wear protective gloves/protective clothing/eye protection/face protection. P331:Do NOT induce vomiting. P301+P310:IF SWALLOWED: Immediately call a POISON CENTER or doctor/physician. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. |
Computed Descriptors for Xylene
InChIKey | KAKOUNRRKSHVJO-UHFFFAOYSA-N |
Abamectin manufacturer
ANJI BIOSCIENCES
JSK Chemicals
Krishna Solvechem Ltd.
Ridhdhi Sidhdhi Chemicals
S D Fine Chem Limited
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