Chloroaurie acid save notes

●
Chloroaurie acid deliquescence, should be dry and protected from light.
●
Chloroaurie acid strong corrosive to metal, so the preparation of gold chloride acid solution should not
use metal spoon weighing HAuCl.
● for the preparation of colloidal gold should be double-distilled water distilled water distilled

water or three, or high quality deionized water.
● Preparation of colloidal gold is a glass container must be absolutely clean, use should be preceded

by the acid and rinse with distilled water. Is best handled by silicification, silicification method can

dichloro-5% chloroform solution of a silane soak a few minutes, rinse with distilled water and dried

after use.
● Identification and preservation of colloidal gold: Preparation of colloidal gold is not difficult,

but good quality colloidal gold system is not an easy task. Therefore, each system should be a good

colloidal gold test, mainly the indicators particle size, uniformity of size and whether the aggregation

of particles.

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