To a polymerization tube was placed CMEMA and styrene monomer solution in
1,4-dioxane (2 ml as solvent) (0.5 g CMEMA-0.2 g styrene), in presence of AIBN as initiator.
To prepare the mixtures, the hydroxyapatite powder (0%, 15%, and 30% w/w) was blended with dry PLGA inside a 50-ml beaker, and then 7 mL of
1,4-dioxane was added to the blend to prepare solutions with the target polymer concentrations (7%, 10%, and 13% w/v), as listed in Table 2.
Group F is another example where all four correlated air toxics had positive associations ranging in magnitude from 1.24 (4,4'-methylenedianiline) to 2.87 (
1,4-dioxane).
It means that the association constants for binding are more significant in
1,4-dioxane at high temperature, concluding that the binding increases with the increased in temperature.
A report last month by engineering firm Jacobs said the probability that
1,4-dioxane could reach the reservoir's intake 7.5 miles from the Superfund site was low.
According to DeLeo, as a result of this survey, EPA has concluded that it is unlikely that
1,4-dioxane is intentionally used in formulations of currently available commercial and consumer products.
L-Aspartic acid (le) (7.98 g, 0.060 mol) and triethylamine ([NEt.sub.3]) (12.14 g, 0.12 mol) were dissolved in distilled water (250 mL), and Boc-Gly-ONSu (13.61 g, 0.050 mol) dissolved in
1,4-dioxane (250 mL) for 4 h was added to the solution.
Already,
1,4-dioxane (a carcinogen used as a solvent) has been detected in at least one residential well in Charlton, Ms.
The FDA has tried to put some restrictions on the cosmetic industry, by minimizing the amount of
1,4-Dioxane in children's products to a concentration not more than 10ppm (parts per million.