Product Series
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Organophosphorus scale and corrosion inhibitor chelating agent
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Bis(1,6-hexamethylene triamine penta(methylenephosphonic acid) sodium salt, BHMTPH·PN(Na₂))
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Tetrasodium 2-phosphonobutane-1,2,4-tricarboxylate, PBTCA·Na₄
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Potassium hexamethylenediamine tetramethylene phosphonate HDTMPA·K6
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Sodium ethylenediaminetetramethylenephosphonic acid pentasodium EDTMP·Na5
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Sodium diethylenetriaminepenta(methylene phosphonate) DTPMP·Na2
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Dietilenetriaminepenta(methylene phosphonic acid) heptasodium salt DTPMP·Na7
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Diethylenetriamine penta(methylene phosphonic acid) pentasodium salt DTPMP·Na5
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Bis(1,6-hexanediyl)triethylenetetramine pentamethylene phosphonate BHMTPMPA
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Sodium pentasodium amino tris(methylene)phosphonate ATMP•Na5
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Polycarboxylate scale inhibitor dispersant
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Acrylic Acid–Acrylate–Phosphonic Acid–Sulfonic Acid Tetrapolymer PR-241
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Sodium Salt of Maleic Acid–Acrylic Acid Copolymer Dispersant MA-AA·Na
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Carboxylate-sulfonate-sulfonated styrene ternary copolymer AA/AMPS/SSS
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Carboxylate-Sulfonate-Acrylate Ternary Copolymer AA/AMPS/HPA
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Acrylic acid-2-acrylamide-2-methylpropane sulfonic acid copolymer AA/AMPS
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Circulating Water Treatment Chemicals
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P0-600 High-Efficiency Corrosion Inhibitor and Scale Inhibitor (National Standard)
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PO-620 Power Plant-Specific Corrosion Inhibitor and Scale Preventer (Electrical Standard)
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PO-800 Eco-friendly, Phosphate-free Corrosion Inhibitor and Scale Preventer
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PO-820 Eco-friendly, Phosphate-free Corrosion Inhibitor and Scale Preventer
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PO-640 Steel Plant TRT Corrosion Inhibitor and Scale Preventer
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PO-610 Water Stabilizer (Scale Inhibitor and Corrosion Inhibitor)
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PO-660 Special Corrosion Inhibitor and Scale Preventer for Central Air Conditioning
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Wastewater treatment chemicals
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Full range of defoaming chemicals
Contact Information
Company Address No. 3716 Qingdao Road, Huaiyin District, Jinan City, Shandong Province, Unit 1801, China Construction Jinxiu Plaza.
Production base Juye Chemical Industry Park, Heze City, Shandong Province.
Nanjing Branch Company Room B2304, Nanjing University of Technology (Dingjiaqiao Campus), No. 5 Xinmofanma Road, Gulou District, Nanjing City, Jiangsu Province.
Phone : +86-531-88986356
Phone :+86-15562623709
Email : sdprio@sdprio.com
Polyaspartic acid (sodium) PASP
Detailed introduction
Sodium Saolt of Polyaspartic Acid ( PASP )
CAS No.181828-06-8;35608-40-6
Molecular formula: C4H5NO3M ( C4H4NO3M ) m ( C4H4NO3M ) nC4H4NO3M2
Relative molecular mass: 1000-5000
Structural formula:

Performance and Applications:
PASP It is a water-soluble polymer and a novel green water treatment agent, characterized by being phosphate-free, non-toxic, environmentally benign, and fully biodegradable. It exhibits exceptionally strong chelating ability toward ions, providing dual functions of corrosion inhibition and scale prevention. It demonstrates excellent scale‑inhibition performance against scaling salts such as calcium carbonate, with a scale‑inhibition rate for calcium carbonate reaching… ≥95% It also exhibits dispersing properties and can effectively prevent corrosion of metallic equipment.
PASP It can replace phosphorus‑containing water treatment agents, thereby preventing eutrophication of water bodies and mitigating secondary pollution from effluent discharge.
Technical Indicators:
| Compliant with HG/T 3822-2020 |
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| Project |
Indicator |
| Appearance |
Yellow to reddish-brown liquid |
| Solid content % |
≥40.0 |
| pH (stock solution) |
8.5-10.5 |
Instructions for use:
PASP As a scale inhibitor and corrosion inhibitor, it is widely used in water treatment applications such as industrial circulating water, boiler water, reverse osmosis feedwater, and oilfield water, particularly under conditions of high hardness, high alkalinity, and high… pH It demonstrates excellent performance in high concentration‑multiplication systems, with scale‑inhibition efficacy superior to that of commonly used phosphonate‑based scale inhibitors. PASP and PBTCA It exhibits a synergistic effect when compounded.
Due to its environmentally friendly characteristics, PASP It can serve as a novel detergent助剂 and a variety of non‑toxic, non‑polluting specialty fine chemicals.
PASP In agriculture, it can serve as a nutrient‑absorption enhancer, promoting the growth of vegetables, fruits, flowers, and other crops; when used in combination with pesticides, it can also enhance their efficacy.
Packaging and Storage:
PASP Packaged in plastic drums, each drum 25kg or 250kg , or as determined according to user requirements. Store in a cool, indoor location; shelf life is twelve months.
Security Protection:
PASP It is alkaline; take appropriate personal protective measures during handling, and avoid contact with skin, eyes, etc. If contact occurs, rinse thoroughly with plenty of water.
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