What is gold sol
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Yogita Ingle 5 years ago
Sulphur sol and gold sol are Lyophobic sols and are unstable and are build to colloidal size from small particles by the Condensation method by Chemical reactions.
Oxidation sulphur sol is prepared by passing H2S into SO2
H2S + SO2 → S (sol) + H2O
Reduction of AuCl3 with formaldehyde gives gold sol.
AuCl3+ HCHO + 3H2O → Au (sol) + 3HCOOH + 6HCl0Thank You