Reverse Osmosis Antiscalant
CAS Number: 2809-21-4
Reverse osmosis antiscalants are specialty chemical formulations dosed into RO system feed water to prevent mineral scaling on membrane surfaces. They inhibit the crystallization and precipitation of sparingly soluble salts including calcium carbonate, calcium sulfate, barium sulfate, strontium sulfate, and silica. Proper antiscalant dosing maximizes recovery, extends membrane life, and reduces cleaning frequency.
Technical Specifications
| pH | 2.0–8.0 |
| dosage | 2–5 mg/L (typical) |
| density | 1.05–1.15 g/cm³ |
| appearance | Clear colorless to light yellow liquid |
| compatibility | All TFC polyamide membranes |
Applications
- Brackish water RO systems
- Seawater desalination RO trains
- Industrial water reuse RO systems
- Power plant boiler feedwater RO
- Pharmaceutical water purification
Key Features
- Inhibits all common RO scaling species including silica
- Very low dosage requirement — high cost efficiency
- NSF/ANSI 60 certified for potable water applications
- Suitable for high LSI and high SDI feed waters
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CAS Number
2809-21-4
Category
Water Treatment ChemicalsAvailability
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