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Marble Chips Extra Pure
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Marble Chips Extra Pure are high-grade, naturally occurring calcium carbonate fragments that have been carefully processed to ensure exceptional purity. These white or off-white chips are widely used in laboratory experiments, especially in demonstrations involving acid-carbonate reactions where the release of carbon dioxide is observed. Beyond educational and research use, they also serve as a buffering agent, filtration medium, and mild abrasive in various industrial applications. Due to their chemical stability and high calcium content, marble chips are ideal for use in controlled environments where contaminants must be minimized.
Description
Marble Chips Extra Pure
Primary Laboratory Uses:
- Source of Calcium Carbonate in Acid Reactions:
- Commonly used to demonstrate the reaction of calcium carbonate (CaCO₃) with acids (e.g., hydrochloric acid) to produce carbon dioxide gas, water, and calcium salt.
- Gas Generation in Experiments:
- Frequently used in school and lab setups to generate COâ‚‚ in a controlled reaction setup.
Secondary Laboratory Uses:
- Buffering Agent:
- Acts as a mild base to neutralize acids or maintain pH in some chemical or biological reactions.
- Demonstration of Carbonate Reactions:
- Ideal for visual and practical demonstrations in chemical education (e.g., limestone cycle, acid rain effects).
- Gravimetric Analysis:
- Occasionally used in mass-based calculations to determine the quantity of acid consumed or gas evolved.
PRODUCT KEY FEATURES
1. Basic Identification Attributes
- Chemical Name: Calcium Carbonate (natural, as marble chips)
- Common Name: Marble Chips
- CAS Number: 471-34-1
- Molecular Formula: CaCO₃
- Molecular Weight: 100.09 g/mol
- Appearance: White to off-white irregular solid chips
- Odor: Odorless
- Grade: Extra Pure
- Solubility: Insoluble in water; reacts with acids to release COâ‚‚ gas
2. Safety & Hazard Attributes
- GHS Classification:
- Not classified as hazardous under normal laboratory conditions
- Hazard Statements:
- Generally considered non-hazardous in solid form
- May cause mechanical eye or respiratory irritation if dust is generated
- Precautionary Statements:
- P261: Avoid breathing dust
- P280: Wear protective gloves/eye protection
- P305+P351+P338: IF IN EYES: Rinse cautiously with water
- P402+P404: Store in a dry place. Keep container closed
- Personal Protective Equipment (PPE):
- Dust mask or respirator (if dusty)
- Safety goggles
- Gloves
- Lab coat
- First Aid Measures:
- Inhalation: Move to fresh air if dust is inhaled
- Skin Contact: Wash with water
- Eye Contact: Rinse with clean water for several minutes
- Ingestion: Rinse mouth with water; not considered toxic in small quantities
- Fire Hazards:
- Non-flammable
- Not combustible; use standard fire-fighting measures if involved in fire
3. Storage & Handling Attributes
- Storage Conditions:
- Store in a cool, dry, well-ventilated area
- Keep container tightly closed
- Protect from moisture and acids
- Handling Tips:
- Avoid generating dust
- Do not breathe particles
- Clean spills with minimal dust dispersal
4. Laboratory Applications
- Primary Uses:
- Neutralization agent for acids in experiments
- Source of COâ‚‚ gas in acid-carbonate reaction demonstrations
- Teaching aid in geology and chemistry practicals
- Secondary Uses:
- Buffering agent in soil science and environmental studies
- Mild abrasive in polishing experiments or mixtures
- Calcium supplement for biological experiments
SAFETY HANDLING PRECAUTIONS
SAFETY PRECAUTIONS
Personal Protective Equipment (PPE):
- Wear a lab coat, nitrile gloves, and safety goggles.
- Use a dust mask or ensure adequate ventilation when handling powdered or chipped material.
Handling:
- Avoid inhalation of dust and contact with eyes or skin.
- Handle with care to prevent dust generation.
- Wash thoroughly after handling.
Storage:
- Store in a cool, dry, and well-ventilated area.
- Keep the container tightly closed.
- Avoid contact with acids, as it can release carbon dioxide gas.
FIRST AID MEASURES
Inhalation:
- Move to fresh air.
- Seek medical attention if irritation or breathing difficulty occurs.
Skin Contact:
- Wash skin with soap and water.
- Seek medical advice if irritation develops.
Eye Contact:
- Rinse cautiously with clean water for several minutes.
- Remove contact lenses if present and easy to do.
- Seek medical help if irritation continues.
Ingestion:
- Rinse mouth with water.
- Seek medical attention if discomfort or symptoms develop.
FIRE FIGHTING MEASURES
Flammability:
- Non-flammable.
- Not considered a fire hazard.
Extinguishing Media:
- Use any standard extinguishing media suitable for surrounding fire.
Hazardous Combustion Products:
- May release carbon dioxide (COâ‚‚) if reacting with acids during a fire.
Firefighter Protection:
- Use standard protective gear and SCBA if involved with contaminated fire environments.
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