Category: Work

The Use of Polyacrylic Acid Sodium Salt (PAAS) in Textile Printing and Dyeing

November 10, 2026 admin No Comments

Sodium Polyacrylate (PAAS) is used in textile printing and dyeing primarily as a dispersant, thickener, and sizing/ adhesion agent, with its function highly dependent on molecular weight. Low-molecular-weight PAAS excels at dispersing dyes and preventing back-staining, while higher-molecular-weight grades serve as thickeners and binders. Primary Applications 1. Washing Off & Anti-Back-Staining (Low Molecular Weight) After…

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The Working Principle of Polyacrylic Acid Sodium Salt (PAAS)

November 7, 2026 admin No Comments

Sodium polyacrylate (PAAS) works primarily through two mechanisms depending on its application: scale inhibition in water treatment and dispersion in particulate suspensions. Its effectiveness is fundamentally linked to its molecular weight and the density of its carboxylate groups. Scale Inhibition Mechanism In industrial water systems, PAAS prevents hard scale deposits (like calcium carbonate and calcium…

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Characteristics of Phosphino-Carboxylic Acid (PCA)

November 5, 2026 admin No Comments

Phosphino-Carboxylic Acid (PCA), also commonly referred to as POCA or PPCA, is a multifunctional water treatment polymer characterized by its combined phosphonic and carboxylic acid groups. Its key characteristics are its broad-spectrum scale inhibition, excellent dispersancy, and h3 stability under harsh conditions. Core Characteristics Broad-Spectrum Scale Inhibition PCA is effective against a variety of scales….

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Application Areas of 1,2-Benzisothiazolin-3-one (BIT)

November 4, 2026 admin No Comments

1,2-Benzisothiazolin-3-one (BIT) is a broad-spectrum, highly effective industrial biocide. Its core application areas concentrate on the preservation of industrial products and materials, particularly excelling in water-based systems, alkaline environments, and high-temperature processes where it demonstrates stability advantages over traditional isothiazolinone biocides. Main Application Areas 1. Paints, Coatings, and Polymer Emulsions This is one of BIT’s…

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Hydroxyethylamino-Di(Methylene Phosphonic Acid) (HEMPA)

November 3, 2026November 3, 2026 admin No Comments

HEMPA (Hydroxyethylamino-Di(Methylene Phosphonic Acid)) is a specialized organic phosphonate whose primary value lies in its exceptional tolerance to dissolved iron and its effectiveness against gypsum (calcium sulfate) scaling, distinguishing it from more common phosphonates like ATMP or HEDP. Identity and Basic Properties Chemical Identity: CAS Number 5995-42-6, with the molecular formula C₄H₁₃NO₇P₂ and a molecular…

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2,2-Dibromo-3-Nitrilo-Propionamide (DBNPA)

November 3, 2026 admin No Comments

DBNPA (2,2-Dibromo-3-nitrilopropionamide) is a fast-acting, broad-spectrum industrial biocide. Its key feature is that it degrades rapidly in the environment, particularly under alkaline conditions, which makes it favored in applications requiring short-term microbial control without persistent residues. Identity and Typical Properties Parameter Information CAS Number 10222-01-2 Molecular Formula C₃H₂Br₂N₂O Items Index Assay: 99% Physical Form White…

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Development of 2-Hydroxyphosphonoacetic Acid (HPAA)

October 31, 2026 admin No Comments

2-Hydroxyphosphonoacetic Acid (HPAA) has evolved from a niche, high-performance corrosion inhibitor into a versatile molecule with expanding applications. Its development is characterized by a mature industrial synthesis route, a well-established role in water treatment where its corrosion inhibition outperforms older phosphonates, and emerging uses in high-tech fields like cyanide-free electroplating and environmental remediation. Industrial Synthesis…

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2-Phosphonobutane -1,2,4-Tricarboxylic Acid (PBTC)

October 30, 2026 admin No Comments

2-Phosphonobutane-1,2,4-tricarboxylic acid (PBTC, also commonly referred to as PBTCA) is a high-performance scale and corrosion inhibitor used primarily in industrial water treatment. Its key advantage over older phosphonates like HEDP and ATMP is its superior stability under harsh conditions—specifically high chlorine levels, high temperatures, and high alkalinity . Key Properties Chemical Identity: CAS number 37971-36-1,…

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Properties and Functions of Polyamino Polyether Methylene Phosphonic Acid (PAPEMP)

October 29, 2026 admin No Comments

Polyamino Polyether Methylene Phosphonic Acid (PAPEMP) is a macromolecular organophosphonate distinguished by its exceptionally high calcium tolerance and broad-spectrum scale inhibition. Unlike conventional phosphonates that lose effectiveness at high hardness or high pH, PAPEMP is specifically designed for demanding conditions such as high hardness, high alkalinity, and high pH water systems. Core Properties High Calcium…

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The Function of Corrosion and Scale Inhibitors

October 27, 2026October 27, 2026 admin No Comments

Corrosion and scale inhibitors serve two distinct but complementary functions in industrial water systems: protecting metal surfaces from electrochemical degradation and preventing mineral deposits from forming on heat transfer surfaces. These functions are achieved through different chemical mechanisms, though many commercial formulations combine both activities in a single product. Corrosion Inhibition: Protecting Metal Surfaces The…

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