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Using Safety Pickle

Directions for use and information on safety pickle

This safety pickle has been formulated for the removal of oxides from the surface of precious metal components after casting, soldering, annealing and any other processes involving heat. It is an ideal alternative to the dangerous acids normally used.

Directions: Heat 1 litre of tap water to approximately 50°C (122°F) in a container capable of resisting acids and caustic solutions (a chemical or polypropylene container is recommended, although glass, most glazed china and most plastics are fine). Add approximately 50g of the granules to the water (always add pickle to water, not water to pickle) and stir with a wooden spoon or spatula. To mix a smaller amount, use 250ml of water (approximately 1 cup) and add 12.5g of crystals (approximately 2 level teaspoons).

Components to be deoxidised should be immersed in the solution, which should be maintained at 50°C if possible (the heat speeds up the process but is not entirely necessary ) and left overnight.

Always use plastic, brass or copper tweezers as steel can contaminate the solution, causing a chemical reaction which can copper plate your sterling silver. Also make sure all binding wire is removed as this will have the same reaction.

Goggles or safety glasses should be worn and any splashes washed off immediately-see below for precautions.

Identification of material: Safety Pickle: White powder / flakes / spheres with a light sulphur aroma.

Composition: Sodium hydrogen sulphate (a modified salt based predominately on sodium bisulphate). The product is not corrosive if kept dry, but in damp or wet conditions it readily absorbs water, forming an acidic liquid which is mildly corrosive when in contact with skin, eyes or by ingestion or inhalation.  

Hazards identification:

Inhalation: Mildly corrosive if inhaled

Ingestion:  Can be mildly corrosive

Skin Contact: Can be mildly corrosive and cause skin ulceration and dermatitis.

Eye Contact: Can be mildly corrosive and cause corneal necrosis and conjunctivitis.    

First aid measures:

Skin Contact: Wash of with soap and water

Eye Contact: Irrigate immediately with lots of plain water and seek medical attention if required.

Inhalation: Remove to fresh air

Ingestion:  Rinse mouth out and drink plenty of water.        

Fire fighting measures: Not considered flammable. Extinguishing media dependant on other constituents of fire. May give off sulphur dioxide fumes so wear breathing apparatus.      

Spillage / disposal: No specific precautions required. Sweep up powder and collect in a suitable container.                                               

Handling / storage: No specific precautions required but, when handling, wear protective mask, gloves, goggles and non-absorbent clothing.

Every effort has been made to ensure that the information on this leaflet is reliable but we cannot accept liability for any loss, damage or injury, which may result from its use. Data given in this leaflet is solely for guidance in safe handling and use of its product - it does not form part of any specification.

If you have any queries or concerns not covered here, please do not hesitate to contact us.


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  • If you are not satisfied with your purchase, you can return the product for a refund or exchange.
  • Please contact within 14 days after receiving the item to arrange the return.  
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