Copper pyrophosphate

CAS Number
10102-90-6
EC Number
233-279-4

What is Copper pyrophosphate?

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.

Where is Copper pyrophosphate used?

  • Metal finishing and electroplating: deposits uniform, adherent copper layers across complex geometries
  • Printed circuit board manufacturing: electrolytes enable through-hole plating and fine-line circuitry deposition where dimensional accuracy and conductivity are critical
  • Textile and paper: surface modification agent imparting antimicrobial or conductive properties to fiber substrates and coated materials
  • Leather finishing: treatments achieve controlled surface chemistry and improved dye uptake
  • Packaging and printing: enhances ink adhesion or substrate wettability
  • It provides a high-performance alternative to cyanide-based copper plating systems without the associated toxicity concerns.

Good to know: Not to be confused with cyanide-based copper plating systems, which carry toxicity concerns. Buyers sourcing for electronics or precision plating should confirm bath-grade specifications, including trace metal impurity limits, with the supplier.

Commercial specifications

  • Technical grade, purity typically 97% to 99% for industrial use

Other Names (Synonyms)

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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What are the physical properties of Copper pyrophosphate?

Melting Point 1140 °C
Density 4.2 g/cm³
Appearance Light blue granules or powder
Odor Odorless
Water Solubility 9mg/L at 20℃

How is Copper pyrophosphate classified and handled safely? Learn More

Warning
GHS07· Irritant GHS09· Environmental Hazard

Hazard Statements

H319 Causes serious eye irritation
H332 Harmful if inhaled
H400 Very toxic to aquatic life
H410 Very toxic to aquatic life with long lasting effects
H411 Toxic to aquatic life with long lasting effects

Precautionary Statements

P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P271 Use only outdoors or in a well-ventilated area.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
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