Overview
Copper hydroxide ( CAS 20427-59-2 ), also known as cupric hydroxide, is an inorganic copper salt used industrially as a biocide, fungicide, and pH-regulating agent.
Its controlled reactivity and copper ion release make it a functional active ingredient across agriculture, water treatment, and specialty chemical applications for various industrial sectors.
In agriculture, it is the active ingredient in crop protection formulations targeting fungal and bacterial diseases in fruits, vegetables, and cereals including downy mildew and fire blight.
Water treatment operations use it to control algae and microbial growth in industrial cooling systems and municipal infrastructure. It is also used in wood preservation and as a process chemical.
It functions as a precursor in the production of other copper compounds and specialty catalysts. The material is supplied as a blue powder or paste, with particle size varying by grade.
Agricultural-grade material typically conforms to specifications aligned with FAO/WHO guidelines and is formulated into wettable powders (WP) or suspension concentrates (SC) for field use.
Technical grade is available for industrial and chemical synthesis applications. This ensures high purity and consistent performance for manufacturers requiring specific chemical properties in their processes.
Contact us for supply of Copper hydroxide
Physical Properties
| Density | 3.37 g/cm³ |
| Appearance | Blue, gelatinous or amorphous powder. Insoluble in water. |
| Color | Blue |
| Form | Powder |
| Water Solubility | Slightly soluble in waterSoluble in acids, ammonium hydroxide, dilute hydrochloric acid, concentrated alkali and potassium cyanide. Insoluble in water, ethanol, and acetone. |
| Vapor Pressure | 0Pa at 25℃ |
| pH | 7.69(1 mM solution);7.69(10 mM solution);7.69(100 mM solution) |
Safety & Handling
Danger GHS05 GHS06 GHS09 GHS07 Hazard Statements H302 Harmful if swallowed [Warning Acute toxicity, oral] H318 Causes serious eye damage [Danger Serious eye damage/eye irritation] H330 Fatal if inhaled [Danger Acute toxicity, inhalation] H400 Very toxic to aquatic life [Warning Hazardous to the aquatic environment, acute hazard] H410 Very toxic to aquatic life with long lasting effects [Warning Hazardous to the aquatic environment, long-term hazard]
Trade & Regulatory
| HS Code | 28255000 |
| Storage Class | 6.1B - Non-combustible acute toxic Cat. 1 and 2 very toxic hazardous materials |
| WGK (Germany) | 3 |
Other Names
Related Products
Chemical Properties
- CAS Number
- 20427-59-2
- EC Number
- 243-815-9
- Mol. Weight
- 97.56
- HS Code
- 28255000
- Category
- Salts & Minerals