1-diphosphonic acid CAS# 2809-21-4

1-Hydroxyethylidene, Promotion Season Now in Store and Free Sample for Testing with Factory Price

• Chemical Name:  1-diphosphonic acid
• CAS No.:     2809-21-4
• Molecular Fomula: ：C2H8O7P2
• Molecular weight：206.03
• Appearance:White crystals
• Sample：Available

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Description of 1-Hydroxyethylidene

• Etidronate is used as a calcium regulator. Etidronic acid is a bisphosphonate antiresorptive agent.

Basic Info of 1-Hydroxyethylidene

Basic Info
Numbering system
Properties
Safety Info
Basic Info

Numbering system

Properties

Safety Info

What is 1-diphosphonic acid ?

• With the progress of science and technology and the development of society, chemical products have invariably permeated our daily lives, in medicine, food, cosmetics, electronics, industry, and other areas, becoming an essential part of our lives. One such product is 1-diphosphonic acid   which has developed particularly rapidly in recent years. Do you know about 1-diphosphonic acid?
• The official answer：The pure product is a white crystal. The industrial product is a colorless to light yellow transparent liquid. Freely soluble in water, soluble in methanol and ethanol. Hydroxyethylenebisphosphonic acid is a chemical raw material, often used in industrial water treatment, household cleaning products, and personal care products.

What’s the application of 1-diphosphonic acid ?

• This product is the main material for cyanide-free electroplating. It is prepared into a cyanide-free copper plating solution, and the copper layer is well bonded by direct plating on sodium iron. The plating layer is smooth and has good color. The general dosage of 60% is 100-120ml/L. The dosage of copper sulfate is 15-20g/L. In addition, before plating, the plated parts are dipped in 1%-2% solution of this product to make the plated parts turn into an activated state and then plated to improve the effect. Commonly used as scale and corrosion inhibitor in the boiler water, circulating water, and oilfield water treatment. It is often combined with polyhydroxy acid type scale inhibitor and dispersant. It can also be used as a complexing agent for non-cyanide plating, a color fixing agent for the bleaching and dyeing industry, and a hydrogen peroxide stabilizer. Hydroxyethylenebisphosphonic acid (HEDP) is a new type of non-chlorine electroplating complexing agent, used as the main agent for water quality stabilization in circulating cooling water systems, playing a role in corrosion and scale inhibition. The product is one of the organic polyphosphoric acid water tablets, domestic production of such products and other varieties, such as amino-trimethylene phosphonic acid (ATMP): [CH2PO (OH) 2]3N and ethylenediamine tetramethylene phosphonic acid (EDTMP) and so on. Organic polyphosphoric acids are a class of water treatment agents developed in the late 1960s and identified around the 1970s, and the emergence of these agents has made a major step forward in water sheet technology. Compared with organic polyphosphoric acid, organic polyphosphoric acid has good chemical stability, is not easy to hydrolyze, can withstand higher temperatures and drug dosage, and has both slow and corrosion scale performance. Is a class of cathodic corrosion inhibitor, and a class of non-chemical equivalent scale inhibitor. When used in combination with other water treatment agents, it shows the ideal synergistic effect. It has excellent chelating performance for many metal ions such as calcium, magnesium, copper, zinc, etc. It even has a good de-activating effect on inorganic salts of these metals such as CaSO4, CaCO3, MgSiO3, etc. Therefore, it is widely used in water treatment technology. The product is low toxic, with LD50 of 486.4mg/kg for subcutaneous injection in mice.

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