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What do you mean by gold number ?...

What do you mean by gold number ?

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The number of milligrams of the dry protective colloid required to just prevent the coagulation of 10mL of stardard red gold sol when 1 mL of a 10% solution of sodium chloride is rapidly added to it.
Lesser the gold number, more is the protective power of the protective colloid.
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BETTER CHOICE PUBLICATION-SURFACE CHEMISTRY -Question Bank
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  2. What do you understand by protection of colloids ?

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  3. What do you mean by gold number ?

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  7. Write two differences between solution and emulsion.

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  8. Milk is an oil in water type emulsion.

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  9. How oil in water or water in oil type of emulsions can be identified b...

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  10. How oil in water or water in oil type of emulsions can be identified b...

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  11. What is emulsification ? Explain the role of emulsifier to stabilise t...

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  12. Define: Emulsification

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  13. What is emulsification ? Explain the role of emulsifier to stabilise t...

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  14. Mention two uses of emulsions.

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  15. Emulsions are normally prepared by shaking the two components together...

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  16. Define: Emulsification

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