Natri bisunfit, NaHSO3

1.  Product Description

Recipe: NaHSO₃

Pack: Drum, cans, bottles

Properties:

• Colorless transparent liquid

Specifications:

• Concentration:: ≥ 35%
• SO₂ : ≤ 22-24 %
• pH : 4-6
• Fe : 0.01%
• Na₂S₂O₃ : 0.3%

• Na₂SO₄ : 0.1%

2. Use

Use in chromium-containing wastewater treatment (Cr6 +) is essential. Converting Cr6 + to Cr3 + is then precipitated by hydroxide reaction.

Chemical equation:

4CrO4 2- + 6HSO3 - + 14 H+ = 4Cr3+ + 6SO4 2 - +10H2O 

 Preservation:

• Preservation and use of equipment such as stainless steel, plastic, composite
• Store in a cool, dry place.
• After opening, use immediately

Dosage used:
Use based on test results and microbial development.