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The following reaction conditions require special attention during the synthesis of ATMP: Temperature control: generally between 120-180°C; Reaction time: should be adjusted in a timely manner according to the concentration of reactants and the progress of the reaction; Catalyst selection: acidic catalysts (such as sulfuric acid), alkaline catalysts (such as sodium hydroxide), or organic catalysts;…
Hydroxyethylidene diphosphonic acid (HEDP) and its sodium salt exhibit good stability in a variety of environments, but their stability and effectiveness can be affected by factors such as pH, temperature, and coexisting ions. The following is an overview of the stability of HEDP and its sodium salt in different environments: Hydroxyethylidene diphosphonic acid (HEDP) and…
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Phosphonobutane-1,2,4-tricarboxylic acid (PBTC) is a high-performance phosphonate-based scale and corrosion inhibitor widely used in water treatment. Due to its excellent calcium tolerance, chlorine resistance, and thermal stability, it is often combined with other chemicals to enhance performance. Below are the most common drug/chemical combinations with PBTC and their applications: 1. PBTC + Corrosion Inhibitors (1) Zinc Salts (Zn²⁺)…
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PCA (Polycarboxylic Acid, e.g., PAA, HPMA, PESA) is widely used as a scale inhibitor and dispersant in water treatment. Its cost depends on type, dosage, and application, but generally offers a cost-effective balance between performance and price compared to alternatives like phosphonates or polyphosphates. 1. Factors Affecting PCA Cost (1) Type of PCA PCA Type Relative Cost Key Features PAA…
GLDA·Na₄ (Tetrasodium Glutamate Diacetate) is a biodegradable, non-toxic chelating agent derived from L-glutamic acid. It is widely used in detergents, personal care, oilfield chemicals, and water treatment due to its excellent metal-chelating ability and environmental safety. Key Temperature Stability Data: Condition Stability Performance Notes Solid Form (Powder) Stable up to 200°C (392°F) Decomposes slowly above this temperature. Aqueous Solution…
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Yes, wearing appropriate protective clothing is recommended when handling PBTC (Phosphonobutane-1,2,4-Tricarboxylic Acid), especially in concentrated forms or during prolonged exposure. While PBTC is generally less corrosive than strong acids, it can still cause mild skin/eye irritation and requires basic safety precautions. Here’s a detailed guide: 1. When to Wear PPE for PBTC Concentrated Solutions (>20% active ingredient). Prolonged or…
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EDTMP•Na₅ is a highly effective phosphonic acid-based scale and corrosion inhibitor, widely used in industrial water treatment due to its strong chelating ability, thermal stability, and excellent metal ion control. Below are its key applications and benefits in the water treatment industry. 1. Key Properties of EDTMP•Na₅ Parameter Specification Chemical Name Ethylenediaminetetra(methylene phosphonic acid) Pentasodium Salt CAS…
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TETHMP·Na₁₂ is a highly phosphonated, multi-functional scale and corrosion inhibitor used in extreme conditions (high temperature, high hardness, oxidizing environments). Below is a step-by-step synthesis and formulation process flow. 1. Raw Materials Preparation Key Chemicals Required: Hexamethylenediamine (HMDA) – Primary amine source. Phosphorous acid (H₃PO₃) – Phosphonation agent. Formaldehyde (CH₂O, 37% solution) – Crosslinking agent. Sodium hydroxide (NaOH, 50%) – Neutralization/pH adjustment….
The pH range of DTPMPA (Diethylenetriamine Penta(methylene Phosphonic Acid)) depends on its application, but its chemical stability and effectiveness generally span a wide pH spectrum due to its robust phosphonate groups. Here’s a detailed breakdown: 1. Optimal pH Range for Performance Application Effective pH Range Notes Scale Inhibition pH 2–12 – Works best in alkaline conditions (pH 7–12) for CaCO₃/CaSO₄ inhibition. – Maintains…
DTPMPA (Diethylene Triamine Penta(methylene Phosphonic Acid)) is a highly effective scale and corrosion inhibitor widely used in water treatment and industrial processes. Its outstanding properties make it a preferred choice in demanding applications: 1. Exceptional Chelation Ability Broad-spectrum metal ion binding: Strongly chelates Ca²⁺, Mg²⁺, Fe³⁺, Ba²⁺, Sr²⁺, and other multivalent cations, preventing scale formation (e.g., CaCO₃, CaSO₄,…
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