Overview
Cuprous oxide (CAS 1317-39-1 ), also known as copper(I) oxide, is an inorganic compound used industrially as a biocidal pigment and surface-active agent.
It delivers both color and antimicrobial performance in a single raw material, making it a practical choice across protective coatings and agricultural formulations.
In marine and antifouling coatings, cuprous oxide acts as the primary biocidal pigment, preventing barnacle and algae attachment on submerged surfaces.
Agricultural formulations rely on it as a copper-based fungicide and bactericide for crop protection, particularly in seed treatments and foliar sprays.
Textile and leather processing use it for imparting antimicrobial properties to finished fabrics and hides. In electronics, it functions as a conductive pigment.
Cuprous oxide is supplied as a fine red-to-brown powder in varying particle size distributions suited to coating or agricultural end uses for industrial clients.
Technical grade is the standard commercial form, with purity levels typically ranging from 97% to 99%. Specialized grades with controlled particle size are available.
These grades are ideal for antifouling paint formulations where dispersion consistency directly affects biocidal performance and long-term surface protection.
Contact us for supply of Cuprous oxide
Physical Properties
| Melting Point | 1235 °C |
| Boiling Point | 1800 °C |
| Density | 6.0 g/cm³ |
| Flash Point | 1800°C |
| Appearance | red-brown powder |
| Color | red |
| Form | powder |
| Water Solubility | practically insoluble |
| Refractive Index | 2.705 |
Safety & Handling
Danger GHS05 GHS07 GHS09 GHS08 Hazard Statements H302 Harmful if swallowed H318 Causes serious eye damage H319 Causes serious eye irritation H332 Harmful if inhaled H335 May cause respiratory irritation H370 Causes damage to organs H400 Very toxic to aquatic life H410 Very toxic to aquatic life with long lasting effects Precautionary Statements P260 Do not breathe dust/fume/gas/mist/vapours/spray. P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P264 Wash … thoroughly after handling. P270 Do not eat, drink or smoke when using this product. 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. P317 Get emergency medical help. P319 Get medical advice/attention if you feel unwell. P321 Specific treatment (see … on this label). P330 Rinse mouth. P391 Collect spillage. P405 Store locked up. P501 Dispose of contents/container in accordance with local regulations. P264+P265 Wash … thoroughly after handling. P301+P317 Get emergency medical help. P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing. P308+P316 Get emergency medical help immediately. P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help. P403+P233 Store in a well-ventilated place. Keep container tightly closed. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
Trade & Regulatory
| HS Code | 28255000 |
| UN Number | 3077 |
| ADR Class | 9 |
| Packing Group | III |
| Storage Class | 11 - Combustible Solids |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 1317-39-1
- EC Number
- 215-270-7
- Mol. Weight
- 143.09
- HS Code
- 28255000
- Category
- Pigments & Colorants