Industrial grade Copper pyrophosphate CAS 10102-90-6

What is Cupric Pyrophosphate?

Cupric pyrophosphate is an inorganic copper salt composed of divalent copper ions and pyrophosphate ions.

in:

· Cupric represents divalent copper, i.e., Cu²⁺ + Cu²⁺ .

· Pyrophosphate refers to pyrophosphate, specifically P2O74 − P2 O74− .

Its common chemical formula can be represented as:

Cu2P2O7

From an ionic composition perspective, two divalent copper ions combine with one pyrophosphate ion to form copper pyrophosphate:

2Cu2++P2O74−→Cu2P2O7 2Cu 2+ +P2O74− → Cu 2P2O 7

Judging from the English name:

· Cupric : divalent copper;

· Pyrophosphate : pyrophosphate;

· Cupric pyrophosphate : Copper pyrophosphate.

In simple terms, cupric pyrophosphate is an inorganic salt material containing copper and pyrophosphate . Unlike copper sulfate, which is primarily water-soluble, it is more suitable for use in pyrophosphate complex systems, copper electroplating processes, ceramic pigments, and the manufacture of inorganic materials .

Industrial-grade cupric pyrophosphate is typically a green, blue-green, or light green powder , with the specific color varying depending on hydration state, particle size, purity, and manufacturing process. It is generally poorly soluble in water, but can form complexes in systems containing pyrophosphate, ammonia, or other complexing agents, making it particularly suitable for certain electroplating and surface treatment processes.

Industrial-grade cupric pyrophosphate typically has the following characteristics:

· Green or blue-green powder ;

· Contains copper ;

· Contains pyrophosphate ;

· It is usually difficult to dissolve in water ;

· It can be used in pyrophosphate complex systems ;

· It can be used as a copper plating source ;

· It can be used in the fields of ceramics, glass, pigments and materials ;

· Requirements exist for copper content, impurities, particle size, and dispersibility ;

· It cannot be used in food, medicine, health products, or animal feed .

What are the main uses of industrial-grade Cupric Pyrophosphate?

The application value of industrial-grade Cupric Pyrophosphate mainly comes from its copper source properties, pyrophosphate complexation characteristics, material coloring ability, and compatibility with inorganic materials .

1. Used for copper plating with pyrophosphate.

This is one of the most important and typical uses of industrial-grade Cupric Pyrophosphate.

Main function:

· As a copper source for plating solution;

· It forms a copper complex system with pyrophosphate;

· Provides stable divalent copper;

· It helps to form a uniform and fine copper plating layer;

· Improve coating adhesion;

· Suitable for both functional and decorative copper plating.

Possible applications:

· Metal plating;

· Copper plating on electronic connectors;

· Printed circuit board manufacturing process;

· Metallization treatment;

· Copper plating on mechanical parts;

· Surface treatment of automotive parts;

· Decorative copper plating.

In copper pyrophosphate plating systems, copper pyrophosphate is usually used in combination with potassium pyrophosphate or sodium pyrophosphate.

2. Used for metal surface treatment

In addition to traditional electroplating, copper pyrophosphate may also be used in certain metal surface treatments, pre-plating copper, or functional coating systems.

Main function:

· Improve the electrical conductivity of metal surfaces;

· Improve the adhesion of subsequent coatings;

· Provide an intermediate copper layer;

· Improve corrosion resistance;

· Improve the decorative effect;

· Supports multi-layer electroplating systems.

Possible applications:

· Steel parts processing;

· Zinc alloy parts processing;

· Aluminum alloy surface treatment requires process adaptation;

· Processing of copper alloy parts;

· Multi-layer nickel and chromium plating pretreatment;

· Undercoating of electronic connectors.

3. Used in ceramics, glass, and inorganic pigments.

Industrial-grade cupric pyrophosphate can be used as a copper source in ceramic glazes, glass, and inorganic pigment systems.

Main function:

· Provides copper;

· Participating in glaze coloring;

· Improve inorganic pigment formulations;

· Affects the firing color;

· Participating in high-temperature reactions;

· Used for special color effects.

Possible applications:

· Ceramic glazes;

· Architectural ceramics;

· Decorative ceramics;

· Glass coloring;

· Inorganic pigments;

· Art ceramics;

· Glaze for handicrafts.

It should be noted that different firing atmospheres, temperatures, and glaze systems can affect the color of copper.

4. Used in catalysts and copper-based materials

Cupric phosphate can be used as a precursor for copper-based or phosphate materials in catalytic or functional materials research and production.

Main function:

· Provide copper source;

· Provides a phosphate structure;

· As a catalyst precursor;

· Participating in solid-phase reactions;

· Used in copper-based composite materials;

· Used for the preparation of functional inorganic materials.

Possible applications:

· Catalytic materials;

· Inorganic functional materials;

· Electrochemical materials;

· Energy storage materials research;

· Copper-based composite materials;

· Specialty materials development.

5. Used in the manufacture of chemical intermediates and copper salts.

Industrial-grade cupric pyrophosphate can also be used as an intermediate raw material in the preparation of certain copper salts or composite materials.

Main function:

· Provides copper;

· Provides pyrophosphate;

· Used as a reactive raw material;

· Used in the preparation of other copper-based materials;

· As a raw material for inorganic synthesis.

Possible applications:

· Copper-based chemical products;

· Inorganic salt manufacturing;

· Phosphate materials;

· Surface treatment agent;

· Composite pigments;

· Specialty chemicals.

Summarize

Cupric pyrophosphate , also known as copper pyrophosphate , is an inorganic copper salt composed of divalent copper ions and pyrophosphate groups. Its common chemical formula is:

Cu₂P₂O₇ Cu₂P₂O ₇

Industrial-grade cupric pyrophosphate is mainly used for:

· Copper plating with pyrophosphate;

· Metal surface treatment;

· Ceramics, glass, and inorganic pigments;

· Catalysts and copper-based materials;

· Manufacturing of chemical intermediates and copper salts.

In our daily lives, we may indirectly come into contact with Cupric Pyrophosphate through the following scenarios:

· Electroplated metal products;

· Electronic and electrical products;

· Ceramic and glass products;

· Building and decorative materials;

· Industrial catalysis and materials products;

· Laboratory and research environment.

Finally, it must be emphasized that industrial-grade cupric pyrophosphate should not be used in food, beverages, pharmaceuticals, health foods, animal feed, or any other application involving human or animal ingestion. In practical industrial applications, key considerations should be given to copper content, pyrophosphate content, particle size, impurities, complexing properties, plating solution stability, dust protection, copper-containing wastewater treatment, and supplier quality documentation.