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Copper powder Extra Pure
LABORATORY GRADE

Copper Hydroxide Extra Pure

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Copper Hydroxide Extra Pure is a finely powdered, blue-green compound used in laboratory settings for analytical, inorganic, and qualitative chemistry applications. Its high purity makes it ideal for precipitation reactions, synthesis of copper-based compounds, and studies involving hydroxide ion behavior. In educational labs, it demonstrates typical base-metal hydroxide characteristics, such as low solubility and reactivity with acids to form copper salts. Due to its instability under light and air, it should be handled with care and stored in well-sealed, light-resistant containers to maintain its integrity for reliable experimental outcomes.

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Description

Primary Uses
Precursor for Other Copper Compounds

Used to prepare copper salts (e.g., copper sulfate, copper acetate) through controlled acid reactions.

Analytical Chemistry Reagent

Employed in qualitative analysis for detecting reducing sugars (e.g., in Fehling’s and Benedict’s tests after formation of cupric ions).

Base for Synthesis in Inorganic Chemistry

Used in the formation of coordination complexes and as a source of Cu²⁺ ions in controlled reactions.

Demonstration of Double Displacement Reactions

Commonly used in teaching labs to show precipitation reactions (e.g., copper sulfate + sodium hydroxide → Cu(OH)₂).

Secondary Uses
Pigment Precursor in Material Science Studies

Studied in synthesis of cupric oxide (CuO) through thermal decomposition for use in ceramics and pigments.

Model Compound in Coordination Chemistry

Investigated for its geometry and behavior in ligand binding experiments and spectroscopy studies.

Demonstrations in pH-Dependent Solubility

Shows amphoteric behavior: dissolves in strong acids and bases, useful for pH and solubility teaching.

Electrochemical Research

Sometimes used to prepare copper electrodes or for redox studies involving Cu(II)/Cu(I) transitions.

PRODUCT KEY FEATURES

Basic Identification Attributes
Chemical Name: Copper(II) Hydroxide

CAS Number: 20427-59-2

Chemical Formula: Cu(OH)₂

Molar Mass: 97.56 g/mol

Synonyms: Cupric hydroxide, Copper dihydroxide

2. Physical & Chemical Properties
Appearance: Blue to bluish-green fine powder

Odor: Odorless

Solubility:

Insoluble in water

Soluble in acids and ammonium hydroxide

Decomposition: Decomposes on heating to copper(II) oxide and water

Stability: Stable under normal laboratory conditions

3. Safety & Hazard Attributes
GHS Classification:

⚠️ Warning

H302: Harmful if swallowed

H315: Causes skin irritation

H319: Causes serious eye irritation

H410: Very toxic to aquatic life with long-lasting effects

NFPA Ratings:

Health: 2

Flammability: 0

Reactivity: 0

First Aid Measures:

Inhalation: Move to fresh air; seek medical advice if symptoms persist

Skin Contact: Wash with soap and water

Eye Contact: Flush with water for 15 minutes; seek medical attention

Ingestion: Rinse mouth; seek immediate medical help

4. Storage & Handling Attributes
Storage Conditions:

Store in tightly sealed containers

Keep in a cool, dry, well-ventilated place

Protect from heat and incompatible substances (e.g., acids, ammonium salts)

Shelf Life: Long if kept dry and sealed

Container Recommendations: Use plastic or glass containers

5. Regulatory & Compliance Attributes
Hazard Symbols:

 

 

EINECS Number: 243-815-9

REACH Status: Registered

UN Number: Not classified as hazardous for transport

6. Applications in Laboratory & Industry
Laboratory Use:

Reagent for synthesis and analytical chemistry

Intermediate in copper salt preparation

Other Uses:

Fungicide and algicide in agriculture

Pigment in ceramics and glass

Precursor for catalysts and other copper compounds

SAFETY HANDLING PRECAUTIONS

PPE Required:

Lab coat

Nitrile or neoprene gloves

Safety goggles

Dust mask or use fume hood for powder handling

Handling:

Handle in a well-ventilated space or under a fume hood

Avoid dust generation and inhalation

Prevent skin and eye contact

Do not ingest

Storage:

Store in a tightly closed container

Keep in a cool, dry, well-ventilated area

Avoid contact with acids (releases toxic copper salts)

Keep away from heat and incompatible substances

FIRST AID MEASURES
Inhalation:

Move to fresh air

Seek medical attention if breathing becomes difficult

Skin Contact:

Wash immediately with soap and water

Remove contaminated clothing

Get medical help if irritation persists

Eye Contact:

Flush eyes with plenty of water for at least 15 minutes

Seek medical attention promptly

Ingestion:

Rinse mouth thoroughly

Do not induce vomiting

Seek immediate medical help

Copper compounds can be toxic if swallowed

FIREFIGHTING MEASURES
Flammability: Not flammable

Hazardous Combustion Products: May produce toxic metal fumes (copper oxides)

Suitable Extinguishing Media:

Use any appropriate method for surrounding fire (dry powder, foam, CO₂, water spray)

Firefighter Protection:

Wear full protective gear and SCBA

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