Nalco 77216 is a bisulfite-based oxygen scavenger for boiler systems. It provides fast reaction with oxygen and is particularly suitable for low- to medium-pressure boilers.
Nalco 77216
Chemical Formula:
Product Name:
Nalco 77216
Bisulfite (HSO₃⁻)
Area of usage:
- Boiler feedwater treatment
- Oxygen control in steam generation
Recommended Dosage:
- 10–40 ppm based on dissolved oxygen levels
Technical Data Summary:
- Appearance: Clear, slightly yellow liquid
- pH: 9 – 11,(100 %)
- Solubility: Fully soluble in water
- Stability: Sensitive to oxidation on air exposure
- Shelf Life: 24 months
Why Choose This Product / Key Benefits:
- Cost-effective oxygen scavenger
- Prevents pitting corrosion
- Suitable for food-grade boiler applications
FAQs:
Q: Is bisulfite safer than sulfite?
A: It is more reactive at lower temperatures but less stable during storage.
Q: Can Nalco 77216 be overdosed?
A: Yes, overdosing may increase boiler blowdown and TDS.