Copper pyrophosphate
Description
Copper pyrophosphate (CAS 10102-90-6) is an inorganic copper salt used primarily as an electrolytic bath component in industrial metal finishing and electroplating operations. It deposits uniform, adherent copper layers across complex geometries.
This chemical provides a high-performance alternative to traditional methods without the toxicity concerns associated with cyanide-based copper plating systems. It is essential for achieving high-quality surface finishes in modern manufacturing.
In printed circuit board manufacturing, copper pyrophosphate electrolytes enable through-hole plating and fine-line circuitry deposition where dimensional accuracy and conductivity are critical. These properties are vital for high-end electronics.
Textile and paper industries use it as a surface modification agent to impart antimicrobial or conductive properties to fiber substrates and coated materials. It allows for specialized functional coatings on various industrial surfaces.
Leather finishing operations apply copper pyrophosphate-based treatments to achieve controlled surface chemistry and improved dye uptake. Packaging and printing processes also incorporate it to enhance ink adhesion or substrate wettability.
Copper pyrophosphate is supplied as a blue-green crystalline powder or fine granules. Technical grade is the standard commercial form, with purity specifications typically ranging from 97% to 99% for industrial use.
Buyers sourcing for electronics or precision plating applications should confirm bath-grade specifications with the supplier. This includes checking trace metal impurity limits to ensure the material meets specific process requirements.
Physical Properties
| Melting Point | 1140 °C |
| Density | 4.2 g/cm³ |
| Appearance | Light blue granules or powder |
| Odor | Odorless |
| Water Solubility | 9mg/L at 20℃ |
Safety & Handling (Learn More)
Documentation
Other Names
diphosphoric acid, unspecified copper salt|diphosphoric acid copper salt|Pyrophosphoric acid, copper salt|RefChem:1082191|dicopper(2+) ion (phosphonatooxy)phosphonate|Copper(II) pyrophosphate|copper;phosphono dihydrogen phosphate|copper(2+) (phosphonooxy)phosphonic acid
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