RO Antiscalant for Barium/Strontium Sulfate Scale
CAS Number: N/A (blend)
Specialty RO antiscalant formulated with high-efficacy threshold inhibitors and crystal modifiers to prevent BaSO₄ and SrSO₄ scale — the most difficult sulfate scales to control due to their extremely low solubility. Effective at LSI up to +2.5 and SDI <5 in brackish water RO systems.
Technical Specifications
| dosage | 2–5 mg/L (site-specific; higher for elevated Ba²⁺/Sr²⁺) |
| pH range | Compatible with feed pH 5.0–9.0 |
| packaging | 25 kg drum or IBC 1000 L |
| appearance | Clear to light yellow liquid |
| LSI inhibition | Up to +2.5 Langelier Saturation Index |
| active content | 25–35% |
| effective scale | BaSO₄ and SrSO₄ (primary); CaCO₃ and CaSO₄ (secondary) |
Applications
- Brackish water RO systems with elevated barium or strontium
- Groundwater RO where BaSO₄ saturation index exceeds 100%
- Industrial cooling water RO makeup with sulfate-rich feed
- Oilfield produced water RO treatment
- Mining process water reverse osmosis
- Geothermal water desalination
Key Features
- Targeted BaSO₄/SrSO₄ inhibition: outperforms general antiscalants on low-solubility sulfate scales
- High LSI tolerance (up to +2.5) enables aggressive recovery rates without scale risk
- Compatible with polyamide, cellulose acetate, and PVDF membranes
- Broad secondary coverage for CaCO₃, CaSO₄, and iron fouling control
- Liquid formulation for easy metering with standard dosing pumps