Letter 8051

Nitric acid as polishing agent 

+

Beside using phosphoric acid and sulphuric acid for chemical polishing, can I replace H3PO4 with nitric acid? If yes, what's the ratio between HNO3 and H2SO?

A.Rahman
- Selangor

We would need more information on what you are trying to do. What metal,what is required, what are you actually using?

Geoff Whitelaw
- Port Melbourne, Vic., Australia

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