Cuprous Oxide Supplier in Malaysia
- Also known as
- copper(I) Oxide
- Red Copper Oxide
- Dicopper Oxide
- Cu2O
Cuprous oxide supplier for marine coating formulators, agrochemical blenders and ceramic producers in Malaysia. The same material is written copper(I) oxide, red copper oxide or Cu2O on a specification sheet, under CAS 1317-39-1. It is a red to reddish-brown powder, and finer grades can look closer to purple-brown.
Grade choice turns on Cu2O content and particle size distribution rather than on colour. Antifouling formulators work to a controlled particle size band, while agricultural and pigment users generally call for finer material. Purified grades exist for work where trace metal limits are tight.
The largest commercial pull is marine antifouling paint, where the oxide is the copper source carried in the film. Fungicide and seed-treatment blenders use it as a copper carrier, and ceramic, enamel and glass makers use it for red and ruby colouring. Rectifier, semiconductor, photocatalyst and catalysis work takes the purified grades.
Cuprous oxide is copper(I) oxide, not cupric oxide, the black copper(II) compound, so state which of the two the formulation needs. Copper sulphate, copper chloride, copper carbonate and copper metal powder are separate products with their own enquiries. Send the grade, Cu2O basis, particle size, quantity and delivery location, and availability, packing and documentation are confirmed with the quotation.
- CAS number
- 1317-39-1
- Formula
- Cu2O
- HS code
- 2825.50
- Grade
- antifouling, agricultural, pigment, purified
- Appearance
- red to reddish-brown or brick-red powder; finer grades can appear darker purple-brown
Cuprous Oxide grades and forms
We supply several forms to suit different formulating and dosing setups. If you need a size that is not listed, ask us.
| Grade | Form | Assay | Typical use | Packing |
|---|---|---|---|---|
| Antifouling grade cuprous oxide | red-brown powder | — | Marine antifouling paint manufacture, where formulators specify a controlled particle size band and a stated Cu2O content because both govern how the copper is distributed through the film. | Pack format is confirmed with the quotation. |
| Agricultural formulation grade cuprous oxide | fine red-brown powder | — | Copper carrier in fungicide and seed-treatment formulations, where fineness and wetting behaviour matter to the blender. Supply is subject to applicable requirements. | Pack format is confirmed with the quotation. |
| Pigment grade cuprous oxide | red to purple-brown powder | — | Red and ruby colouring in ceramic glaze, enamel and glass batch work, where the shade obtained depends on the firing atmosphere as much as on the oxide itself. | Pack format is confirmed with the quotation. |
| Purified cuprous oxide | red-brown powder | — | Rectifier, semiconductor, photocatalyst and catalysis work that sets trace metal and chloride limits tighter than a general technical grade. | Pack format is confirmed with the quotation. |
How to buy cuprous oxide from ChemTrade
Request a quote for cuprous oxide
Use the form below to request a quotation. You can also email sales@chemtrademalaysia.com or send us a message on WhatsApp.
Specifications
| Parameter | Value | Method |
|---|---|---|
| Appearance | red to reddish-brown or brick-red powder, darker purple-brown in some fine grades | — |
| CAS number | 1317-39-1 | — |
| Molecular formula | Cu2O | — |
| Molecular weight | approximately 143 g/mol | — |
| Copper oxidation state | copper(I), which is what separates it from copper(II) oxide | — |
| Cu2O content | stated for the selected grade with the quotation | — |
| Particle size distribution | selected by grade; the controlling property for antifouling and formulation work | — |
| Solubility | practically insoluble in water; dissolves in acids and in ammonia solutions | — |
Cuprous Oxide applications
Safety and handling
Keep containers closed in a dry, well-ventilated store, away from acids, and handle the powder so airborne dust is not generated. Follow the safety information supplied with the quoted grade. Supply is subject to applicable requirements.
Common questions about cuprous oxide
What is the difference between cuprous oxide and cupric oxide?
They are two different compounds. Cuprous oxide is copper(I) oxide, Cu2O, and is red to reddish-brown, while cupric oxide is copper(II) oxide, CuO, and is black. Their applications differ as well, so order the one your specification names by name rather than asking for copper oxide.
Is cuprous oxide the same as copper(I) oxide?
Yes, they are the same material. Copper(I) oxide is the systematic name, cuprous oxide is the trade name, and red copper oxide, dicopper oxide and Cu2O all refer to it too. Any of those on an enquiry is understood as the same product.
Which cuprous oxide grade suits antifouling paint?
Antifouling formulators normally work to a controlled particle size band with a stated Cu2O content, rather than to the finest powder available. Send the particle size specification and the loading you formulate to so the correct grade is quoted.
Which other copper compounds are ordered separately?
Copper sulphate, copper chloride, copper carbonate and copper metal powder are separate products with their own specifications and enquiries. If your process sheet names one of those, request it under that name instead of cuprous oxide.
Why does the colour of cuprous oxide vary between grades?
Particle size drives the apparent shade, so a coarser grade reads brick-red while a very fine grade can look purple-brown. Colour on its own is not a grade check, which is why the Cu2O content and particle size distribution are the figures worth specifying.
What should be included in a cuprous oxide enquiry?
Give the application, grade, Cu2O content basis, particle size requirement, quantity, pack preference and delivery location. Add any trace metal or chloride limits your specification carries so the quotation is matched to the real requirement.
How should cuprous oxide be stored and handled?
Keep it in closed containers in a dry, well-ventilated area away from acids, and handle it so dust is not raised. Follow the safety information supplied with the quoted grade. Supply is subject to applicable requirements.