Potassium Bisulfate CAS 7646-93-7
Potassium Bisulfate, with CAS number 7646-93-7, is a solid acidic acidic salt. It is an industrial commonly used solid strong acid, used for acid washing and scale removal, and as a catalyst for adjusting acid levels.
1. The aqueous solution is highly acidic and belongs to an acid salt.
2. Potassium Bisulfate is soluble in water but insoluble in ethanol.
3. Potassium Bisulfate can decompose at high temperatures, releasing sulfur trioxide.
4. Potassium Bisulfate is corrosive and has a strong acidity.
| Item | Standard |
| Characters | White crystalline powder |
| Assay | 99.0%~101.0% |
| Appearance of solution | (Comply with the standard) |
| Water-insoluble | 0.00002 |
| Chloride | 0.000005 |
| Nitrogen compound | 0.00002 |
| Phosphate | 0.00001 |
| Silicate | 0.00001 |
| Sodium | 0.0002 |
| Magnesium | 0.000005 |
| Aluminium | 0.00001 |
1. Acid regulator
Used as a mild solid strong acid to replace sulfuric acid, it is used in industrial, cosmetics and water treatment for acid adjustment.
2. Metallurgy / Electroplating
Metal pickling, rust removal, electrolytic additives, ore decomposition fluxing agents.
3. Chemical raw materials
Potassium bisulfate - organic synthesis catalyst, esterification reaction catalyst, sulfonation additive.
4. Daily use and cleaning
Scale remover, cleaning agent raw material, for removing scale and rust stains;
Feed additive, soil acidification modifier.
• Standard Packing: 25 kg/bag; 25 kg/drum
• MOQ: to be confirmed by grade and destination
• Lead Time: to be confirmed by order quantity and production schedule
• Shipping: sea / air / express options available
• Store in a cool, dry, and well-ventilated place.
• Keep container tightly closed and protected from moisture.
• Avoid direct sunlight, heat, and open flame.
• Follow SDS guidance for incompatible materials.










