King Saud University

Merajuddin Khan

Mahmood M S Abdullah

Hamad Zaid Alkhathlan

Ayman Mohamady Atta

Hamad Abdulla Al-Lohedan

Abdullah Mohammed Al-Mayouf

Abdulrahman O Ezzat

Extracts offlowers are shown to exhibit anticorrosive activity when used with mild steel in acidic media. A process is shown for obtaining such anticorrosive extracts from the flowers of. In particular, certain methanolic, aqueous methanolic and water extracts, as well as ethyl acetate and n-butanol fractions, offlowers are shown to demonstrate particular anticorrosive activity when used with mild steel in acidic media. An isolated flavonoid compound fromflowers, designated as apigenin-7-O-&#x3b2;-D-glucoside, is particularly useful for anticorrosive activity when used with mild steel in acidic media.

Method of protecting metal from corrosion using plant derived anti-corrosion agent

The biosynthesized magnetic metal nanoparticles for oil spill remediation are magnetic nanoparticles capped with an extract of. The magnetic nanoparticles are formed by co-precipitation of ferric chloride hexahydrate and ferrous chloride tetrahydrate in an ethanol solution of the extract with the dropwise addition of ammonium hydroxide to raise the pH to between 8 and 11. The extract may be an extract of the aerial parts ofin a low polar extraction solvent, such as an n-alkane solvent or mono-di-, or trichloromethane. The extract is hydrophobic, improving dispersion of the magnetic nanoparticles in oil spills in seawater, resulting in 90% removal of oil for a 1:10 ratio of nanoparticles:oil by weight.

Biosynthesized magnetic metal nanoparticles for oil spill remediation

Growing community of inventors

Riyadh, Saudi Arabia

Merajuddin Khan