SODIUM BISULPHATE ANHYDROUS

S.No. CHARACTERISTICS SPECIFICATIONS
1 Product Name: SODIUM HYDROGEN SULPHATE
2 Other Names: SODIUM BISULPHATE, SODIUM ACID SULPHATE
3 Specifications: 99 % Minimum
4 Chemical Formula: NaHSO4
5 CAS No: 7681-38-1
6 EINECS No: 231-665-7

Industrial uses of SODIUM BISULPHATE:    

  • Household cleaners, toilet cleaners etc
  • Acid cleaner for industry, breweries, dairies etc
  • Silver pickling
  • To reduce alkalinity and pH in swimming pools. Commercially it is sold as “pH Decreaser”, “pH Minus” or “pH Down”.
  •  As a preservative for soil and water samples in analytical laboratory analysis
  • An auxillary agent for the bleaching and dyeing of wool.
  • A polishing and grinding agent for glass.
  • A pickling salt for the plumping and bleaching of skins in the leather industry.
  • As a flux for metal pickling.
  • When mixed with potassium dichromate it is used as a bleach in photography

How to use SODIUM BISULPHATE / Dry acid in pools & spas ? 

Sodium bisulfate is used to lower the pH and to maintain total alkalinity TA in swimming pools and spas. It is safer and easier to use than hydrochloric acid (muriatic). It is easier to store but it also must be handled with care. The ideal pH of pool water should be 7.0-7.6 and total alkalinity should be maintained between 80 and 120ppm.

Using SODIUM BISULPHATE as silver / metal pickle

The purpose of the sodium bisulfate solution is to remove ‘borax glass’ or fire scale left on metal during the heating process. The pickle solution can be made a 30% solution i.e. 300g per litre of water. Leave in the pickle until the surface appears white and free of fire scale. Note: Pickle should be kept warm, but not boiling. The warmer the solution the faster the process takes place. The optimum temperature is 57C to 95C. SODIUM BISULPHATE is Acidic and it is an electrolyte. Never put iron into pickle. This will impart a copper tone to sterling silver.

 

Translate »
Feedback & Support