To a 250 ml conical flask, N-acetylglycine (0.177 g, 1 mmol) was suspended in toluene
(5.3 ml), heated the solution and stirred until it was clear and then a solution of isocyanate or diisocyanate (0.16 ml, 1 mmol) in chloroform (5.7 ml) was added drop wise and refluxed for 2 hrs after addition of 3-4 drops of triethylamine and then cooled to room temperature (25 AdegC).
In principle, in the manufacture of all products supplied by Siegwerk for NP&H (Nutrition, Pharma & Hygiene) applications, toluene
or raw materials containing toluene
are not used as intentionally-added ingredients.
The study included 50 workers exposed to a mixture of organic solvents (xylene, toluene
, and methyl-ethyl-ketone) and 50 unexposed workers, matched by age, sex, and education.
Degradation of Toluene
. In a conical flask, 100 ml of 30 ppm toluene
solution was taken and 0.4 mg of prepared Ti[O.sub.2] nanoparticles was added in the solution.
We used toluene
as an additive for the asymmetric distribution of Ag nanoparticles within the PDMS matrix.
The TDI section consists of three integrated units producing di nitro toluene
di amine (TDA), and toluene
di isocyanate (TDI).
and p-xylene are hazardous chemicals for human beings and environment.
This paper reports the results of an infrared spectroscopic study of the interactions between [C.sub.60] and [C.sub.70] nanoparticles and 2-pyrrolidone using toluene
as a solvent environment (Aksenova et al.
After stirring for 30 min, methylaluminoxane (MAO) was added, followed by a solution of the catalyst in toluene
+ MAO to start the polymerization.
The other petrochemical products to be produced are: Benzene at 126,000 MT yearly; toluene
(76,000 MT); mixed xylene (46,000 MT); C8+/C9+ Cut (18,000 MT); and non-aromatics (29,000 MT).
FE-SEM images demonstrated that the thinner or toluene
used as an adulterant in the gasoline destroyed the PCL electrospun fibers; which gave access to PDA polymer producing red color.
The proposed Toluene
installation is of the underground type (passive mitigation) the vessel is protected from any external fire.