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Chemical structure
PAPEMP – polyamino polyether methylene phosphonic acidnNCH3OCH3NH2O3PPO3H2PO3H2PO3H2

PAPEMP representative structure

Formula
Polyamino polyether methylene phosphonic acid
Mol. weight
~600 g/mol (typical)
CAS
130668-24-5
PhosphonatesZEELCHEM™ 151In stock

PAPEMP – Polyamino Polyether Methylene Phosphonic Acid | ZEELCHEM™ 151

Organic polyether phosphonate (40–45% active) with very high calcium tolerance. Inhibits CaCO₃, CaSO₄, BaSO₄ and SrSO₄ scaling under alkaline pH.

Price per pack₹11,700
₹195/kg+ 18% GST · freight to-pay
Pack size
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Quick answer

What is PAPEMP?

PAPEMP (polyamino polyether methylene phosphonic acid, CAS 130668-24-5) is a phosphonate scale inhibitor with outstanding calcium tolerance for high-hardness, alkaline cooling water and RO systems. ZEELCHEM™ 151 is supplied 40–45% active in 60 kg carboys and 240 kg drums.

CAS number130668-24-5
FormulaPolyamino polyether methylene phosphonic acid
Molecular weight~600 g/mol (typical)
Product codeZEELCHEM™ 151
HSN code29319090
Price₹195/kg, ₹11,700 per 60 kg carboy + GST
Made inVadodara, Gujarat, India

About PAPEMP

PAPEMP is a phosphonate-based chemical for scale inhibition, mineral dispersion and deposit control in industrial systems with high hardness and alkaline pH.

Its methylene phosphonate groups enter the crystal lattice to produce fragile, non-adherent particles, while the polyether-modified chain keeps them dispersed for removal by blowdown.

Key benefits

  • High calcium tolerance, low calcium-phosphonate precipitation
  • Stable from neutral to alkaline pH
  • Threshold inhibition of CaCO₃, CaSO₄, BaSO₄, SrSO₄
  • Suitable for RO and membrane programs
  • Compatible with polyacrylic and polymaleic acid

Also known as: PAPEMP, PAPEMPA, polyamino polyether methylene phosphonate

Technical specifications

Full chemical namePolyamino Polyether Methylene Phosphonic Acid
CAS number130668-24-5
Product code / SKUZEELCHEM™ 151
Chemical familyOrganic polyether phosphonate
AppearanceAmber to dark brown liquid
Active content40.0–45.0%
pH (1% aqueous)1.5–3.0
Density @ 20 °C1.15–1.25 g/cm³
Total phosphorus (as PO₄³⁻)15.0–17.0%
Water solubilityMiscible in all proportions
Packaging60 kg carboy / 240 kg drum (UN-approved HDPE)

Applications of PAPEMP

  • RO antiscalant pretreatment
  • Cooling water (high cycles, high hardness)
  • Boiler feedwater deposit control
  • Industrial phosphonate formulations

Dosage and how to use

  • Indicative: RO 3 ppm, cooling 8 ppm, high calcium 15 ppm, BaSO₄ control 25 ppm.
  • Final dosage must be confirmed by water analysis (Ca²⁺, HCO₃⁻, SO₄²⁻, pH) and trials.

Dosing estimator

–per day
–metering pump
–per month

Estimate only. Confirm dosage with a water analysis and trial – our team can help.

Safety, storage and handling

  • Store in a cool, dry, ventilated area away from sunlight, heat and strong oxidisers.
  • Keep containers tightly closed; use HDPE or lined vessels.
  • Refer to the SDS for GHS classification and PPE.

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 PAPEMP?

A polyether phosphonate water treatment chemical for scale inhibition, deposit control and mineral dispersion.

What is PAPEMP used for?

RO systems, cooling water, boiler water and membrane scale control, especially at high hardness and alkaline pH.

What is the dosage of PAPEMP?

There is no universal dose; it depends on water chemistry and system design. Use the calculator below as a starting point.

Where can I buy PAPEMP in India?

From ZEEL PRODUCT, Vadodara, in 60 kg carboys and 240 kg drums, with pan-India supply.

Technical content reviewed by M.R. Patel, Technical Head. Last updated 28 October 2026.

Related products

₹11,700+ GST, 60 kg carboy

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