PRODUCT DESCRIPTION

Nitric acid is the inorganic compound with the formula HNO3. It is a highly corrosive mineral acid. The compound is colorless, but samples tend to acquire a yellow cast over time due to decomposition into oxides of nitrogen. Nitric acid is also commonly used as a strong oxidizing agent.

PRODUCT FEATURES

• Nitric acid is effective for detecting the presence of copper in an alloy.
• A hard cupric reaction indicates lots of copper.
• Mild cupric reaction indicates that at best the item is low karat gold (10K or below)
• No cupric reaction does not indicate that the item is gold, just that there little or no copper.
• Test the core of the item, not just the surface.
• Nitric acid gold testing is a way to narrow down the possibility of an item being gold or not.

PRODUCT PROPERTIES