By Meghachem Technical Team · Last updated: November 4, 2026
Copper oxide is an inorganic compound formed when copper reacts with oxygen. It exists primarily in two stable forms: Cupric Oxide (CuO) and Cuprous Oxide (Cu2O). Both forms are widely used across industrial, agricultural, and chemical applications due to their unique properties such as high thermal stability, catalytic activity, and antimicrobial characteristics.
As one of the most versatile copper compounds, copper oxide plays a critical role in manufacturing processes ranging from electronics to ceramics.
Types of Copper Oxide
1. Cupric Oxide (CuO)
Cupric oxide is a black, monoclinic crystalline solid. It is the more common form used in industrial applications and is known for its strong oxidizing properties.
- Molecular Formula: CuO
- Appearance: Black powder or granules
- Melting Point: 1,326 degrees Celsius
- Solubility: Insoluble in water, soluble in acids
2. Cuprous Oxide (Cu2O)
Cuprous oxide is a reddish-brown crystalline solid used extensively as a pigment and in antifouling paints.
- Molecular Formula: Cu2O
- Appearance: Red or reddish-brown powder
- Key Use: Marine antifouling coatings, fungicides
Key Industrial Applications of Copper Oxide
Copper oxide finds use across a wide range of industries. Below are some of the most significant applications:
Glass and Ceramics Industry
CuO is used as a colouring agent in glass, enamels, and ceramic glazes, producing blue, green, and red hues depending on the firing conditions and atmosphere.
Agriculture and Pesticides
Cuprous oxide is a key active ingredient in fungicides and bactericides. It is widely used to protect crops from fungal infections and bacterial diseases, especially in vineyards and vegetable farming.
Electronics and Semiconductors
Due to its p-type semiconductor properties, copper oxide is used in solar cells, gas sensors, lithium-ion batteries, and supercapacitors. It is also used in the manufacture of rectifiers and photoconductive cells.
Chemical Catalysis
Copper-based catalysts (Cu/ZnO) are used in methanol synthesis, and CuO is used in oxidation catalysts for exhaust gas purification.
Pigments and Coatings
Both forms of copper oxide are used in protective coatings, antifouling marine paints, and as pigments in specialty inks and dyes.
Petroleum and Gas Industry
CuO is used as a sulfur sorbent to remove H2S and other sulfur compounds from gas streams (hydrodesulfurization itself uses Co-Mo or Ni-Mo catalysts).
Why Quality Matters When Buying Copper Oxide
For industrial applications, the purity and consistency of copper oxide directly impacts product performance. Impurities can affect catalytic efficiency, colour uniformity in ceramics, or pesticidal efficacy in agriculture. Buyers should look for:
- High purity grades (minimum 97% CuO or Cu2O)
- Controlled particle size distribution
- Low moisture content
- Consistent batch-to-batch quality
- Proper packaging to prevent moisture absorption
Meghachem Industries: Your Copper Oxide Supplier
Meghachem Industries, based in GIDC Vatva, Ahmedabad, Gujarat, is one of India’s leading manufacturers and exporters of copper-based chemicals including copper oxide. With experience since 2002 in the chemical industry, Meghachem supplies to 12+ countries worldwide.
Why Choose Meghachem as Your Copper Oxide Supplier?
- High-purity copper oxide meeting strict industrial specifications
- Stringent quality control at every stage of production
- Customised packaging and flexible order quantities
- Timely delivery backed by an efficient supply chain
- Experienced team with deep technical knowledge of copper chemistry
- Export-ready documentation and compliance support
We cater to industries including chemicals, agriculture, electronics, ceramics, and more. Our commitment to consistent quality and on-time supply makes them a preferred sourcing partner for businesses across India and internationally.
We manufacture cupric oxide (CuO); see our cupric oxide specifications. Property data: PubChem: Cupric oxide.
Frequently Asked Questions
CuO (Cupric Oxide) is black and has a +2 oxidation state, while Cu2O (Cuprous Oxide) is reddish-brown with a +1 oxidation state. CuO is more commonly used in industrial and chemical applications, whereas Cu2O is preferred in agriculture and pigment applications.
Copper oxide can be harmful if inhaled or ingested in large quantities. Standard industrial handling precautions such as PPE, proper ventilation, and safe storage practices should be followed. Meghachem provides Safety Data Sheets (SDS) with all shipments.
Meghachem supplies copper oxide to the agriculture, ceramics, glass, electronics, chemicals, coatings, and petroleum industries, among others.
