Substance profile
Copper dihydroxide
Copper dihydroxide is a blue to blue green gel or light blue crystalline powder.
01 · Identification
What Copper dihydroxide is
Copper dihydroxide is a blue to blue green gel or light blue crystalline powder. It is soluble in water.
Under the GHS it carries the signal word Danger.
Other names for Copper dihydroxide
- copper(II) hydroxide
02 · GHS classification
Hazards and label elements
Harmonised classification under CLP Annex VI. This is the legally binding classification in the EU; other jurisdictions may differ.
| Code | Hazard statement |
|---|---|
| H330 | Fatal if inhaled. |
| H302 | Harmful if swallowed. |
| H318 | Causes serious eye damage. |
| H400 | Very toxic to aquatic life. |
| H410 | Very toxic to aquatic life with long lasting effects. |
Precautionary statements: P260, P270, P271, P273, P280, P301, P304, P305, P310, P312, P330, P338, P391, P501
03 · Physical and chemical properties
Copper dihydroxide properties
Every value is shown with the conditions it was measured under and the source it came from. Where sources disagree, all values are listed rather than one being picked — the difference is usually a different form of the substance, not an error.
| Property | Value | Conditions | Source |
|---|---|---|---|
| Melting point | Decomposes at melting point, with loss of water. | decomposes | HSDB |
| Density | 3.37 g/cm³ | HSDB | |
| 3.368 g/cm³ | at 25 °C | DOE PAC | |
| Solubility | Sol in acids, ammonium hydroxide; sol in concn alkali when freshly precipitated. | HSDB | |
| Soluble in acid solutions, concentrated alkaline solutions | HSDB | ||
| Soluble in ammonium hydroxide | HSDB |
Values compiled from PubChem Laboratory Chemical Safety Summary. Temperatures converted to Fahrenheit for reference.