[email protected] to get [email protected] composite, filtered, washed with

[email protected] was prepared using white open cell flexible polyurethane foam polyether type which supply from an Egyptian company for foam production.

A 5 g of PUF cubes was soaked in 1 mol/L HCl leaving it whole night soaked then squeezed it very well to get over all HCl remain and then washed it with water. A 30 ml concentrated HCl was added to 5 g PUF-NH2 cubes until this mixture was warmed. A 60 ml of saturated solution of ammonium thiocyanate (1:2) was added slowly to PUF-NH2 cubes until got turbid solution. The foam was poured into cold water, washed and dried at room temperature (Mathapati et el.

Don't waste your time
on finding examples

We can write the essay sample you need

, 2012). The next step is adding vanillin to PUF (1:1) to reflux with 200 ml ethanol for 2h. SVT-PUF (yellow foam) was refluxed with ZnONPs for 6 h to get [email protected] composite, filtered, washed with ethanol and air dried.A 0.1 g of brilliant green (Br.G; C27H34N2O4S, 482.65 g/mol), toluidine blue (To.B; C15H16ClN3S, 305.83g/mol) and trypan blue (Tr.B; C34H24N6O14S4Na4, 960.81 g/mol) were dissolved in 100 ml distilled water.


I'm Owen!

Would you like to get a custom essay? How about receiving a customized one?

Check it out