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Manganese Dioxide Extra Pure
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Manganese Dioxide Extra Pure is a high-purity, dark brown or black powder widely used in laboratories and industrial processes for its strong oxidizing properties. In analytical chemistry, it serves as an effective oxidizing agent and is often involved in the decomposition of hydrogen peroxide and other redox reactions. It is also used in the preparation of oxygen and chlorine gases in laboratory settings. Beyond the lab, manganese dioxide plays a crucial role in battery manufacturing, particularly in dry cell batteries, and in ceramics and glass production for coloring and decolorizing. Its consistent purity makes it ideal for sensitive experiments and formulations.
Description
Manganese Dioxide Extra Pure
Primary Laboratory Uses:
- Strong Oxidizing Agent:
- Commonly used in redox reactions and organic oxidation experiments, such as converting alcohols to ketones or aldehydes.
- Decomposition of Hydrogen Peroxide:
- Serves as a catalyst to decompose H₂O₂ into water and oxygen, often used in demonstrations of catalytic reactions.
Secondary Laboratory Uses:
- Battery Research:
- Studied in electrochemistry as a component of dry cell batteries and for lithium battery cathodes.
- Pigment and Material Science:
- Used in experiments involving ceramic glazes or glass coloration due to its pigmenting properties.
- Gas Generation Reactions:
- Assists in laboratory setups for generating oxygen gas during chemical demonstrations.
PRODUCT KEY FEATURES
1. Basic Identification Attributes
- Chemical Name: Manganese Dioxide
- Synonyms: Pyrolusite, Manganese(IV) oxide
- CAS Number: 1313-13-9
- Molecular Formula: MnO₂
- Molecular Weight: 86.94 g/mol
- Appearance: Black or dark brown powder
- Odor: Odorless
- Solubility: Insoluble in water and alcohol
- Grade: Extra Pure
2. Safety & Hazard Attributes
- GHS Classification:
- Health hazard (Chronic)
- Environmentally hazardous (Aquatic chronic)
- Hazard Statements:
- H373: May cause damage to organs through prolonged or repeated exposure
- H411: Toxic to aquatic life with long-lasting effects
- Precautionary Statements:
- P260: Do not breathe dust
- P273: Avoid release to the environment
- P281: Use personal protective equipment as required
- Personal Protective Equipment (PPE):
- Lab coat
- Gloves
- Safety goggles
- Dust mask or respirator (if dust is generated)
- First Aid Measures:
- Inhalation: Move to fresh air; seek medical attention if symptoms persist
- Skin Contact: Wash thoroughly with soap and water
- Eye Contact: Rinse cautiously with water for several minutes
- Ingestion: Rinse mouth; seek medical attention
- Fire Hazards:
- Non-flammable, but may react with combustible materials
- Use appropriate extinguishing media for surrounding fire
3. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, and well-ventilated area
- Keep container tightly closed
- Avoid storage near acids and reducing agents
- Handling Tips:
- Minimize dust generation
- Avoid contact with incompatible substances
- Handle with care in designated chemical areas
4. Laboratory Applications
- Primary Uses:
- Oxidizing agent in organic and inorganic synthesis
- Reagent in analytical chemistry
- Decomposition of hydrogen peroxide in catalytic experiments
- Secondary Uses:
- Manufacture of dry-cell batteries (Leclanché cells)
- Glass and ceramics coloring agent
- Laboratory preparation of chlorine and oxygen gases
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear a lab coat, nitrile gloves, and safety goggles.
- Use a dust mask or operate in a fume hood to avoid inhalation.
Handling:
- Avoid contact with skin, eyes, and clothing.
- Do not breathe dust. Prevent dust generation.
- Wash hands thoroughly after handling.
- Handle in accordance with good industrial hygiene and safety practices.
Storage:
- Store in a cool, dry, and well-ventilated location.
- Keep the container tightly closed and away from incompatible materials (e.g., strong acids and reducing agents).
- Protect from moisture and direct sunlight.
FIRST AID MEASURES
Inhalation:
- Move people to fresh air.
- Get medical attention if respiratory symptoms occur.
Skin Contact:
- Wash with soap and water.
- Remove contaminated clothing.
- Seek medical advice if irritation develops.
Eye Contact:
- Rinse thoroughly with plenty of water for at least 15 minutes.
- Remove contact lenses if present and easy to do.
- Seek medical attention if irritation persists.
Ingestion:
- Rinse mouth with water.
- Do not induce vomiting.
- Get medical attention if symptoms occur.
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable, but may enhance combustion of other materials due to oxidizing nature.
Extinguishing Media:
- Use dry chemical, CO₂, foam, or water spray as appropriate for surrounding fire.
Hazardous Combustion Products:
- May release manganese oxides if involved in fire.
Firefighter Protection:
- Wear self-contained breathing apparatus (SCBA) and full protective gear.
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