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Phosphoric acid
Phosphoric acid, formula H₃PO₄, MW 97.99. Content: 75%, 81%, 85%. Colorless, transparent, viscous liquid. Odorless, very sour taste, melting point 42.35°C. Easily soluble in water, soluble in ethanol. Hygroscopic. Irritating to skin, may cause inflammation and tissue damage
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Phenolphthalein
Phenolphthalein, CAS 77-09-8, formula C₂₀H₁₄O₄, MW 318.33. An acid-base indicator that is colorless in acidic solution and turns pink to red in alkaline solution (pH 8.0–10.0). Previously used medicinally as a cathartic.
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Trifluoropropylmethylcyclotrisiloxane
D3F is a core cyclic fluorosilicone monomer with superior heat, oil and chemical resistance.
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EDTA 2Na(EDTA DISODIUM SALT)
EDTA 2Na(EDTA DISODIUM SALT), also known as Disodium Edetate. Molecular formula:C10H14N2O8Na2•2H2O, MW:372.24, CAS No.6381-92-6. It is white crystalline powder, a widely used chelating agent, stable and soluble in water.
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Copolymer of Maleic and Acrylic Acid(MA/AA)
MA/AA is a low molecular weight polyelectrolyte, copolymer of maleic anhydride and acrylic acid. It exhibits excellent dispersion for carbonate and scale inhibition for phosphate, with good thermal stability up to 300°C.
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Copolymer of acrylic acid and 2-acrylamido-2-methylpropane sulfonic acid (AA/AMPS)
AA/AMPS is copolymer of acrylic acid and 2-acrylamido-2-methylpropanesulfonic acid (AMPS). With carboxylic and sulfonic groups in molecular structure, it features high calcium tolerance, excellent scale inhibition and dispersion for calcium carbonate, calcium phosphate and zinc scale. It shows obvious synergistic effect when blended with organophosphorus. Suitable for water of high pH, high alkalinity and high hardness, ideal for high concentration ratio operation.
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2-Phosphonobutane-1,2, 4-tricarboxylic acid (PBTC)
2-Phosphonobutane-1,2,4-tricarboxylic acid (PBTC), CAS 37971-36-1, formula C₇H₁₁O₉P, MW 270.13. Low phosphorus content. With both phosphonic acid and carboxylic acid groups, it offers excellent corrosion and scale inhibition. Superior to common organic phosphonic acids at high temperatures. Improves zinc salt solubility, keeping zinc in solution even at pH 9.5.
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1-hydroxy ethylidene-1,1-diphosphonic acid (HEDP)
Hydroxyethylidene diphosphonic acid (HEDP), CAS 2809-21-4, formula C₂H₈O₇P₂, MW 206.03. Water-miscible, stable at high pH, low toxicity. Good scale inhibition below 200°C; decomposes above 250°C. Acid- and alkali-resistant. Forms stable complexes with Fe, Cu, Al, Zn, etc., and dissolves metal surface oxides. Low-arsenic grade: As ≤3.0 ppm.
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