The oil and gas industry remains one of the principal suppliers for raw materials, such as phenols and aromatic amines
, for manufacture of functional additives.
* Permanent Hair Dyes ($25): Although hair dyeing has been used as a cosmetic treatment throughout history, the process as we know it today stems from the discoveries in the 19th Century that hydrogen peroxide bleaches the natural color of hair and oxidizes chemicals such as aromatic amines
on hair to impart dark colors.
According to the statement, azo dyes could release carcinogenic substances known as aromatic amines
when they mix with sweat, which accounted for the ban on the use of the dye in many countries of the world.
And, those who liked their meat or fish charred had the highest levels of heterocyclic aromatic amines
(HAAs), chemicals that affect the inner lining of blood vessels and have been associated with atherosclerosis, which causes arteries to narrow and is a primary cause of heart disease.
Primary aromatic amines
(PAAs) are food contaminants.
It is worth noting that the mono-N-methylation of primary aromatic amines
with dimethyl carbonate could occur in high selectivity [15, 16].
The state health services on Tuesday recalled two plastic slotted spatulas after lab tests that showed that the primary aromatic amines
(PAA) released by the products were at higher levels than those permitted by law.
The toxicity of azo acids is because they produce aromatic amines
during natural processes of degradation (3-6).
Condensation reactions of compound (c) and different aromatic amines
with a few drops of glacial acetic acid was heated under reflux in absolute ethanol for 2 h and this yielded the azo Schiff bases 1-6 in excellent yields (scheme 2).
The aim of present research was to isolate such bacterial strains which are capable of degrading dye-originated aromatic amines
. Ten samples of wastewater and sludge were collected from outlets and wastewater streams of different textile industries.
Bladder cancer mortality of workers exposed to aromatic amines
: A 58-year follow-up.