What is the charge on a gold sol?
Answers
Suspensions of gold nanoparticles of various sizes. The size difference causes the difference in colors.
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Colloidal gold is a sol or colloidal suspension of nanoparticles of gold in a fluid, usually water. The colloid is usually either an intense red colour (for spherical particles less than 100 nm) or blue/purple
⭕ ➡ gold sol is negatively charged ⭕
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