Description

(1-Hydroxyethylidene)Bisphosphonic Acid, Zinc Salt is a high-purity, organophosphorus coordination compound valued for its excellent sequestering and corrosion inhibition properties. This product is essential for formulators seeking to enhance the stability and performance of aqueous systems by controlling scale formation and metal ion activity. It is primarily utilized by manufacturers in the water treatment, personal care, and industrial cleaning sectors.

Application

• Industrial Water Treatment: A key component in cooling water and boiler water treatment formulations for scale and corrosion inhibition, particularly against calcium carbonate and calcium sulfate.
• Personal Care Products: Used as a stabilizing and chelating agent in cosmetics, toiletries, and oral care products (e.g., toothpaste) to improve shelf life and product efficacy.
• Industrial & Institutional (I&I) Cleaners: Enhances the performance of detergent formulations, especially in hard water, by sequestering interfering metal ions like calcium and magnesium.
• Pulp & Paper Processing: Acts as a chelant and dispersant in bleaching and pulping processes to improve efficiency and protect equipment.
• Textile Processing: Used in dyeing and finishing baths to prevent adverse effects of metal ions on color and fabric quality.
• Oil Field Applications: Employed in scale control for water flooding and production systems to maintain well and pipeline integrity.

Basic Information

Product Name	(1-Hydroxyethylidene)Bisphosphonic Acid, Zinc Salt
CAS No.	25537-17-1
Molecular Formula	C2H8O7P2Zn
Molecular Weight	271.34 g/mol
Synonyms	Zinc HEDP; Zinc (1-Hydroxyethylidene)diphosphonate; Zinc Etidronate; Zinc 1-Hydroxyethane 1,1-diphosphonate; HEDP-Zn; Phosphonic acid, (1-hydroxyethylidene)bis-, zinc salt; Zinc Amino Tris(Methylene Phosphonate) (common misnomer); ZN-HEBP
EINECS	247-069-3

Quality Control

Our (1-Hydroxyethylidene)Bisphosphonic Acid, Zinc Salt is manufactured under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, zinc content, and active component levels. A Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture, which may affect product quality.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to standard
Assay (HEDP-Zn Content)	≥ 95.0 %
Zinc (Zn) Content	23.0 - 25.0 %
pH (1% Aqueous Solution)	2.0 - 4.0
Loss on Drying	≤ 2.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Chloride (Cl)	≤ 0.1 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.