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Benzene exposure in mothers has been linked to fetal brain defects especially neural tube defects. In one study, BTEX (Benzene, toluene, ethylbenzene, xylenes) exposure during the first trimester of pregnancy has been clearly indicating negative association with biparietal brain diameter between 20 and 32 weeks of pregnancy. Women with high ...
Xylene is used in the laboratory to make baths with dry ice to cool reaction vessels, [17] and as a solvent to remove synthetic immersion oil from the microscope objective in light microscopy. [18] In histology, xylene is the most widely used clearing agent. [19] Xylene is used to remove paraffin from dried microscope slides prior to staining.
The international pictogram for chemicals that are sensitising, mutagenic, carcinogenic or toxic to reproduction. Reproductive toxicity refers to the potential risk from a given chemical, physical or biologic agent to adversely affect both male and female fertility as well as offspring development. [1]
Exposure to xylene comes in two main forms: vapor and liquid. Breathing in xylene is the most common form of exposure. Small amounts of xylene vapors can cause headaches, dizziness, drowsiness and ...
o-Xylene (ortho-xylene) is an aromatic hydrocarbon with the formula C 6 H 4 (CH 3) 2, with two methyl substituents bonded to adjacent carbon atoms of a benzene ring (the ortho configuration). It is a constitutional isomer of m -xylene and p -xylene , the mixture being called xylene or xylenes.
Pregnant people are unknowingly being exposed to harmful chemicals that can increase the risk of cancer and harm child development, according to a new study by
The p-xylene is then separated out in a series of distillation, adsorption or crystallization and reaction processes from the m-xylene, o-xylene, and ethylbenzene. Its melting point is the highest among this series of isomers, but simple crystallization does not allow easy purification due to the formation of eutectic mixtures.
For mixtures containing organic solvents such as toluene, styrene or xylene, the combined exposure with noise increases the risk of occupational hearing loss in a synergistic manner. [5] [50] The risk is greatest when the co-exposure is with impulse noise. [51] [52] Carbon monoxide has been shown to increase the severity of the hearing loss ...