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Copper powder Extra Pure
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LABORATORY GRADE

Copper Turnings Extra Pure

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Copper Turnings Extra Pure are thin, spiral-shaped shavings of elemental copper, produced from high-purity metal and widely used in laboratory applications requiring clean, reactive metal surfaces. Their large surface area makes them ideal for redox reactions, hydrogen generation experiments, and the preparation of copper salts through acid reactions. In educational and research settings, they are preferred for demonstrations involving displacement reactions and metal activity series studies. The extra pure grade guarantees minimal contamination, ensuring accurate and reproducible results. To prevent oxidation and maintain reactivity, copper turnings should be stored in dry, airtight containers.

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Description

Primary Uses
Reactant in Inorganic Synthesis

Used to prepare copper salts (e.g., copper nitrate, copper sulfate) by reacting with acids like nitric or sulfuric acid.

Demonstrations of Redox Chemistry

Ideal for showing metal displacement reactions, such as copper replacing less reactive metals from solutions (or being replaced by more reactive ones).

Electrochemical Experiments

Employed as electrodes in galvanic and electrolytic cells to demonstrate oxidation at the anode or reduction at the cathode.

Metal Recovery Studies

Used in precipitation reactions to recover other metals (e.g., silver or mercury) from their ionic solutions.

Secondary Uses
Thermal Conductivity & Heat Transfer Experiments

Because of its high thermal conductivity, it’s used to demonstrate metallic heat conduction.

Teaching Tool in Reagent Purity or Metal Identification

Helpful in qualitative tests for identifying pure metals or checking reaction completeness.

Support for Organic Reaction Catalysis (when activated)

Though less common than copper powder, cleaned or activated turnings may act as mild catalysts in some organic coupling reactions.

Study of Metal Surface Reactions

Used to study surface oxidation, passivation, or acid etching effects under controlled conditions.

PRODUCT KEY FEATURES

Basic Identification Attributes
Chemical Name: Copper (turnings)

CAS Number: 7440-50-8

Chemical Formula: Cu

Molar Mass: 63.55 g/mol

Synonyms: Copper metal shavings, Copper filings, Metallic copper

2. Physical & Chemical Properties
Appearance: Reddish metallic shavings or curled strips

Odor: Odorless

Solubility:

Insoluble in water

Soluble in nitric acid and hot concentrated sulfuric acid

Melting Point: ~1083 °C

Boiling Point: ~2562 °C

Electrical Conductivity: Excellent

Thermal Conductivity: Excellent

3. Safety & Hazard Attributes
GHS Classification:

H302: Harmful if swallowed

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

Fire Hazard:

Not readily flammable, but fine residues or dust may pose ignition risk

NFPA Ratings:

Health: 1

Flammability: 1

Reactivity: 1

First Aid Measures:

Inhalation (dust): Move to fresh air and seek medical attention if symptoms occur

Skin Contact: Wash thoroughly with water and soap

Eye Contact: Rinse cautiously with water for several minutes

Ingestion: Rinse mouth, do not induce vomiting, get medical help

4. Storage & Handling Attributes
Storage Conditions:

Store in a dry, cool, ventilated space

Keep away from strong oxidizing agents

Handling Advice:

Avoid generating fine dust when handling or machining

Use protective gloves and eye protection

Container Recommendations: Closed, labeled metal or plastic containers

5. Regulatory & Compliance Attributes

EINECS Number: 231-159-6

REACH Status: Registered

UN Number: Not regulated for transport in solid metal form

6. Applications in Laboratory & Industry
Laboratory Use:

Common reagent in redox and displacement reactions

Used in preparation of copper salts (e.g., copper(II) nitrate)

Ideal for reactions where pure solid copper is required

Other Uses:

Electrochemistry experiments

Alloy and metallurgy demonstrations

Thermal conductivity studies

SAFETY HANDLING PRECAUTIONS

PPE Required:

Lab coat

Safety goggles

Nitrile gloves

Handling:

Handle with clean, dry tools to avoid oxidation

Avoid contact with acids and oxidizers

Wash hands after handling

Storage:

Store in labeled, sealed containers

Keep in a dry environment to prevent corrosion or patina formation

Separate from strong acids and oxidizers

FIRST AID MEASURES
Inhalation:

Not expected to be hazardous in solid form

Move to fresh air if exposed to metal fumes (e.g., during heating)

Skin Contact:

Wash thoroughly with soap and water

Seek attention if irritation occurs

Eye Contact:

Rinse with water for at least 15 minutes

Get medical advice if irritation persists

Ingestion:

Rinse mouth

Not expected to be toxic in small amounts, but seek medical attention

FIREFIGHTING MEASURES
Flammability: Not flammable in turnings form

Explosion Risk: None in normal conditions

Extinguishing Media:

Use dry powder, sand, or foam

Water or COâ‚‚ are typically safe but avoid with nearby reactive chemicals

Firefighter Protection:

Standard protective equipment

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