164462-16-2
≥40% active liquid or ≥90% powder
Build Detergency & Remove Soil · Chelate Metals & Soften Water — Laundry detergents, Dishwashing products, Industrial and institutional cleaning
Topic cluster
Chelants and Scale Control for Water Treatment
Use this hub to compare chelants, phosphonates and polymeric scale-control materials by mechanism, system conditions and commercial grade.
HCSchem
How should water-treatment ingredients be selected?
Start with water analysis, pH, temperature, recovery or concentration cycles and the deposit risk. Chelation, threshold inhibition and dispersion are different mechanisms, so the current grade specification and system testing should determine the final program.
Chelant and scale-control products
Review identity, active content, form and application context before requesting a grade.
Chelant and scale-control products
5
Name
CAS No.
Content / Grade
Function & Usage
RFQ
51981-21-6
47%
Build Detergency & Remove Soil · Chelate Metals & Soften Water — Green chelant, Household and industrial cleaning, Water treatment
51274-37-4 / 109578-44-1 (polymer identifiers; confirm supplier identity)
≥40% liquid solids or ≥90% powder / granules
Build Detergency & Remove Soil · Disperse Solids & Control Deposits — Cooling water, Boiler water, Seawater desalination
94525-01-6 (sodium polyaspartate; confirm supplier grade identity)
≥40% solids
Build Detergency & Remove Soil · Disperse Solids & Control Deposits — Biodegradable water treatment, Cooling and boiler water, Detergent builder
37971-36-1
50% active content
Chelate Metals & Soften Water · Control Oilfield Scale & Corrosion — Cooling water treatment, Oilfield water systems, High-hardness water
Applications
Related water applications
Choose the operating problem first when a specific chemistry has not yet been selected.
Chelate Metals & Soften WaterBinds metal ions, supports water softening and improves cleaning or process-water performance.View application →Scale & Corrosion ControlChelants, phosphonates, polymers and inhibitors for scale, corrosion and metal-ion control in process systems.View application →RO, Membrane & DesalinationAntiscalants, dispersants and microbial-control products for RO pretreatment, membranes and desalination systems.View application →
Insights
Selection guides
Use the technical guide to define the data needed for a meaningful product comparison.
HCSchem
Technical sources
These sources support the market and selection context; current supplier documents remain decisive.
HCSchem
Need help defining a water-treatment grade?
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