Gold Precipitant 16 oz Refining Test Acid Aqua Regia Metals SMB Pyrosulfite

1 lb Sodium Metabisulfite (SMB) – GTE Gold Precipitant for Gold Refining

GTE Gold Precipitant is a high-quality Sodium Metabisulfite (SMB) used during the gold refining process to recover dissolved gold from refining solutions. Sodium Metabisulfite is one of the most commonly used chemicals for precipitating gold from aqua regia and gold chloride solutions.

When added to a prepared refining solution, SMB releases sulfur dioxide which causes dissolved gold to fall out of solution as fine gold powder. The recovered gold can then be filtered, washed, dried, and melted into refined metal.

This 1 lb supply is ideal for refiners working with scrap jewelry, electronic waste, and other gold-bearing materials.

Product Details

1 lb Sodium Metabisulfite (SMB) – GTE Gold Precipitant

• Used to precipitate dissolved gold from aqua regia solutions

• Commonly used in scrap gold refining and precious metal recovery

• Packaged for convenient use in gold refining applications

• Trusted chemical used by hobbyists and professional refiners

Common Applications

• scrap gold refining

• e-waste gold recovery

• aqua regia refining processes

• precious metal recycling

• hobby and professional refining

How It Is Used

During the gold refining process:

Gold is dissolved into solution using refining methods such as aqua regia.

The refining solution is prepared and neutralized if necessary.

Sodium Metabisulfite (SMB) is added to precipitate gold from the solution.

The gold settles as fine powder which can be filtered, washed, and melted into refined gold.

Additional Information

• Fresh refining chemical

• Suitable for common gold recovery methods

• Used by refiners, jewelers, and precious metal recyclers