Representative AA/AMPS copolymer units
- Formula
- (C₃H₄O₂)m(C₇H₁₃NO₄S)n
- Mol. weight
- Low molecular weight
- CAS
- 40623-75-4
Co Polymer of AA/AMPS – ZEELCHEM™ 3100
Copolymer of acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid (AMPS) with high calcium tolerance. Inhibits calcium phosphate, carbonate and zinc scale and disperses iron oxide.
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What is AA/AMPS Copolymer?
AA/AMPS copolymer is a sulfonated scale inhibitor and dispersant with very high calcium tolerance. It controls calcium phosphate, carbonate and zinc scale and disperses iron oxide in high-pH cooling water. ZEELCHEM™ 3100 is sold in 60 kg carboys.
| CAS number | 40623-75-4 |
|---|---|
| Formula | (C₃H₄O₂)m(C₇H₁₃NO₄S)n |
| Molecular weight | Low molecular weight |
| Product code | ZEELCHEM™ 3100 |
| HSN code | 39069090 |
| Price | ₹140/kg, ₹8,400 per 60 kg carboy + GST |
| Made in | Vadodara, Gujarat, India |
About AA/AMPS Copolymer
The carboxylic groups of ZEELCHEM™ 3100 provide scale inhibition and dispersion, while the sulfonic acid groups of AMPS add polarity and very high calcium tolerance.
It inhibits calcium phosphate, calcium carbonate and zinc scale, works synergistically with organophosphorus additives, and suits high-pH, highly alkaline water.
Key benefits
- Very high calcium tolerance
- Excellent calcium phosphate and zinc scale inhibition
- Disperses ferric oxide and suspended solids
- Stable in high-pH alkaline programs
- Synergistic with phosphonates and zinc salts
Also known as: acrylic acid AMPS copolymer, AA-AMPS, sulfonated copolymer, carboxylate sulfonate copolymer
Technical specifications
| Product code | ZEELCHEM™ 3100 |
|---|---|
| Appearance | Water-white to pale yellow transparent liquid |
| Solid content | 48.0–50.0% |
| Free monomer (as AA) | ≤ 5.0% |
| Density @ 20 °C | ≥ 1.20 g/cm³ |
| pH (1% aqueous solution) | 2.5–3.5 |
| Packaging | 60 kg HDPE carboy |
Applications of AA/AMPS Copolymer
- Open recirculating cooling water
- Oilfield water systems
- Metallurgy, iron and steel plants (ferric oxide dispersion)
- Phosphate and zinc-based corrosion programs
Dosage and how to use
- Typical dose in cooling water: 5–15 mg/L.
- With organophosphorus additives and zinc salt, recommended pH range 7.0–9.5.
Dosing estimator
Estimate only. Confirm dosage with a water analysis and trial – our team can help.
Safety, storage and handling
- Acidic liquid: wear gloves and goggles.
- Store in a cool, shaded place in closed containers.
Industrial use only. Read the current safety data sheet before handling.
Documents
Batch COA is sent with every dispatch. Ask for any document on WhatsApp.
Frequently asked questions
What is AA/AMPS copolymer used for?
Controlling calcium phosphate, carbonate and zinc scale and dispersing iron oxide in cooling and oilfield water.
Why choose AA/AMPS over PAA?
AMPS sulfonate groups give much higher calcium tolerance, so it works in hard, high-pH water where PAA can precipitate.
Technical content reviewed by M.R. Patel, Technical Head. Last updated 26 October 2026.
Related products
Polyacrylic Acid (PAA) CAS 9003-01-4 – ZEELCHEM™ 1000
- CAS
- 9003-01-4
- Code
- ZEELCHEM™ 1000
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