RO Antiscalant
General Purpose (Phosphonate & Polymer Blend)
Title Tag: RO Antiscalant (HEDP/PAA Blend) CAS: 2809-21-4 (HEDP); 9003-01-4 (Polyacrylic Acid)
| General RO Antiscalant | Carbonate & Sulfate Scale Control
Description: General purpose RO antiscalant based on phosphonate + polyacrylate technology for CaCO₃/CaSO₄ scaling control. Suitable for brackish water RO systems.
Product Overview
RO Antiscalant (General Purpose) is a balanced phosphonate/polymer formulation used as a threshold inhibitor and dispersant. It is designed to control common mineral scaling (carbonate and sulfate) and maintain stable RO performance under typical industrial operating conditions.
Key Applications
Brackish water RO systems (industrial plants)
RO systems with moderate hardness and alkalinity
RO pretreatment programs requiring scale inhibition + dispersion
General membrane protection and performance stabilization
High Silica (Polycarboxylate/AMPS Copolymer Based)
Title Tag: High Silica RO Antiscalant (AA/AMPS Copolymer) CAS: 27103-90-8 (AMPS); 79-10-7 (Acrylic Acid)
| RO Antiscalant | High Silica Control
Description: High silica RO antiscalant based on acrylic/AMPS copolymer dispersant technology. Helps control silica/silicate and mixed scaling in challenging feed water.
Product Overview
High Silica RO Antiscalant is a polymer-based dispersant designed for RO/NF systems treating high-silica feed water. It helps inhibit silica/silicate deposition and improves dispersion of colloids, reducing differential pressure increase and extending CIP intervals.
Key Applications
RO / NF systems with high silica (SiO₂) feed water
Industrial RO pretreatment chemical programs
Reuse water / brackish water desalination systems
Plants requiring higher recovery operation (subject to water chemistry)
High Hardness / Ba-Sr Sulfate (DTPMPA Based)
Title Tag: High Hardness RO Antiscalant (DTPMPA) CAS: 15827-60-8
| High Hardness Antiscalant | BaSO₄ / SrSO₄ Control
Description: DTPMPA-based high hardness RO antiscalant for severe scaling tendency, including calcium sulfate and barium/strontium sulfate control in high TDS feed water.
Product Overview
High Hardness / Ba-Sr Sulfate RO Antiscalant is designed for difficult waters with high hardness and sulfate, where scaling risk from CaSO₄, BaSO₄ and SrSO₄ is elevated. The formulation typically uses phosphonate threshold inhibition with polymer dispersion to help maintain recovery and reduce scaling-related shutdowns.
Key Applications
RO systems with high hardness / high sulfate feed water
Groundwater RO with barium/strontium scaling risk
High-recovery RO operation (subject to chemistry limits)
Industrial desalination and reuse water RO systems
*Reach us to obtain a TDS & MSDS with details
FAQ Section
Is your scale inhibitor compatible with major membrane brands like Dow or Hydranautics?
Yes, Oneschem RO antiscalants are formulated to be compatible with all leading polyamide composite membranes (RO/NF), including brands like FilmTec (Dow), Hydranautics, and Toray. They do not block membrane pores.
How do I calculate the correct dosage for my RO system?
The dosage depends on your raw water analysis (specifically Calcium, Magnesium, Silica, and pH). Generally, the standard dosing is 2-6 ppm. We can provide a specific projection report using our simulation software if you send us your water quality report.
Can this antiscalant replace acid dosing?
In many cases, yes. Our high-efficiency antiscalant can control Calcium Carbonate scaling effectively even at a higher LSI (Langelier Saturation Index), often eliminating the need for hazardous acid transportation and storage on-site.
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