SILVER METAL purity test

Spot turns a creamy colour it is high quality silver, usually sterling. If it turns black it is coin quality silver and if it turns green it has high amounts of copper and therefore is poor quality silver and a gold colour means a lot of brass,

SKU: RXSOL-62-5509-025 Category:

Description

Silver testing solution manufacturer and supplier.   Place a drop of acid on the object to be tested. 

90 to 100% silver, the acid will show a creamy color. 
77-90% silver, the acid turns a gray color.
65-75% silver, then the acid will show a light green color.
90 to 100% silver, the acid will show a creamy color. 
77-90% silver, the acid turns a gray color.
65-75% silver, then the acid will show a light green color.

Technical Bulletin

Label

Silver testing

When dissolved in an RXSOL SIL solution, Pure silver will turn the solution bright red, sterling silverwill turn it dark red, low grade coin silver(0.800 fine) will turn brown (largely due to the presence of copper which turns the solution brown) and even green for 0.500 silver.

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