Aluminium Metal Fine Extra Pure

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SHORT DESCRIPTION

Aluminium Metal Fine Extra Pure is a high-purity, silvery-grey powder composed of finely divided aluminum particles, ideal for precision laboratory work and specialized chemical reactions. Known for its high surface area and excellent reactivity, it is widely used in thermite reactions, metallurgical experiments, and the synthesis of aluminum-based compounds. Its fine particle size enhances its role as a reducing agent in organic and inorganic chemistry, as well as in combustion and pyrotechnic research. The extra pure grade ensures minimal trace impurities, supporting consistent and accurate results in sensitive analytical and preparative procedures. Due to its flammability and potential for dust explosions, it must be handled with caution in well-ventilated areas and stored in sealed, moisture-free containers.

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Category: LABORATORY CHEMICALS Tags: AluminiumStandard, AnalyticalReagent, FineMetalPowder, HighPurityMetal, ReactiveMetal, RedoxReactions, SpecialtyLabUse, ThermiteReagent

Description

USES

Primary Uses

Reagent in Redox and Thermite Reactions
- Used in classic and advanced redox experiments (e.g. the thermite reaction with Fe₂O₃) to demonstrate highly exothermic reactions.
Reducing Agent in Inorganic Synthesis
- Acts as a strong reducing agent in the preparation of certain metal powders from their oxides or salts.
Reactant in Hydrogen Generation Studies
- Reacts with bases like NaOH in water to produce hydrogen gas; used in studying gas evolution and stoichiometry.
Material for Metallurgical & Pyrotechnic Research
- Used in laboratory-scale studies on alloy formation, combustion analysis, and energy-release experiments.
Conductivity and Surface Area Research
- Studied for its high surface reactivity and electrical conductivity in solid-state physics or nanomaterial synthesis.

Secondary Uses

Combustion and Energetic Material Studies
- Used in research on energetic materials, propellant testing, or ignition behavior under lab-controlled conditions.
Electrochemistry and Galvanic Cell Experiments
- Acts as an electrode material or sacrificial anode in experimental electrochemical cells.
Catalyst Support or Carrier
- Sometimes used as a support for catalytic materials in prototype catalyst development.
Corrosion & Passivation Research
- Enables investigation into the formation and behavior of aluminum oxide passivation layers.
Educational Demonstrations of Reactivity Series
- Ideal for comparing reactivity of metals and exploring displacement reactions in teaching labs.

KEY PRODUCT FEATURES

KEY ATTRIBUTES

1. Basic Identification Attributes

Chemical Name: Aluminium (IUPAC: Aluminium metal, fine powder)
CAS Number: 7429-90-5
HS Code: 7603.10.00 (Aluminium powders of non-lamellar structure)
Molecular Formula: Al
Synonyms:
- Aluminium powder
- Aluminum metal powder
- Atomized aluminium
- Aluminium dust
- Fine aluminium particles

2. Physical & Chemical Properties

Physical State: Solid (fine powder)
Color & Odor: Silvery-gray powder; odorless
Boiling Point: ~2,470°C
Melting Point: ~660.3°C
Density/Specific Gravity: ~2.70 g/cm³
Solubility:
- Water: Insoluble; reacts slowly in moist air
- Acids: Soluble in hydrochloric acid, sulfuric acid (forms hydrogen gas)
- Bases: Soluble in strong alkalis (forms aluminates)
pH Level: Not applicable
Vapor Pressure & Volatility: Negligible at room temperature
Flash Point: Highly flammable as a powder
Autoignition Temperature: ~590°C (in air, fine powder)
Viscosity: Not applicable

3. Safety & Hazard Attributes

Hazard Class (GHS):
- Flammable solid (Category 2)
- May form explosive dust-air mixtures
- Reacts with acids and bases
NFPA Ratings:
- Health: 1
- Flammability: 3
- Reactivity: 1
Exposure Limits:
- OSHA PEL (Total dust): 15 mg/m³
- ACGIH TLV (Respirable fraction): 1 mg/m³ (as Al)
Reactivity:
- Reacts with water in presence of heat
- Reacts violently with oxidizers and some acids/bases
- Risk of dust explosion if dispersed in air

4. Storage & Handling Attributes

Storage Conditions:
- Store in tightly sealed containers in a cool, dry, flame-proof area
- Avoid friction, heat, or sparks near storage area
Incompatible Materials:
- Strong oxidizers (e.g., nitrates, peroxides)
- Acids and alkalis (can produce hydrogen gas)
Container Type:
- Metal or antistatic plastic containers, inert-sealed if ultra-fine grade
Shelf Life & Expiration Date:
- Indefinite if stored properly and uncontaminated
Special Handling Requirements:
- Use under fume hood if risk of dust dispersion
- Antistatic PPE, explosion-proof tools, grounded equipment recommended

5. Regulatory & Compliance Attributes

Regulatory Status:
- Listed in TSCA, REACH
- Regulated as a hazardous material in powdered form
Transportation Restrictions:
- UN Number: UN1396 (Aluminium powder, uncoated)
- Hazard Class: 4.1 (Flammable solid)
- Packing Group: II
Waste Disposal Method:
- Do not dispose of with combustible materials
- Collect and treat as hazardous waste according to local regulations

6. Environmental & Health Impact

Ecotoxicity:
- Low toxicity in solid form
- May be harmful to aquatic organisms in fine particle suspensions
Persistence in Environment:
- Stable in dry form; oxidizes slowly over time
Carcinogenicity/Mutagenicity:
- Not classified as carcinogenic
Biodegradability:
- Not biodegradable; oxidizes to inert aluminium oxide (Al₂O₃)

SAFETY HANDLING PRECAUTIONS

SAFETY PRECAUTIONS

Personal Protective Equipment (PPE):
- Wear chemical-resistant gloves, lab coat, and safety goggles.
- Use a dust mask or respirator when handling powders, especially in enclosed spaces.
Handling:
- Handled in a dry, inert environment—very fine aluminum powders can be pyrophoric (spontaneously flammable in air).
- Avoid friction, impact, and formation of airborne dust.
- Use non-sparking tools and ground all equipment to prevent static discharge.
Storage:
- Store in a tightly sealed container under dry, cool, inert conditions.
- Keep away from water, moisture, heat sources, open flames, and oxidizing agents.
- Avoid accumulation of dust and store away from incompatible substances (acids, halogens, strong oxidizers).
Hygiene Measures:
- Wash hands thoroughly after handling.
- Avoid contact with eyes and skin, and do not breathe dust.
- Keep lab area clean and free from combustible materials.

4. FIRST AID MEASURES

Inhalation:
- Move the person to fresh air immediately.
- Provide oxygen if breathing is difficult.
- Seek medical attention if symptoms (e.g., coughing, shortness of breath) persist.
Skin Contact:
- Wash skin with plenty of soap and water.
- Remove contaminated clothing.
- Seek medical attention if irritation occurs.
Eye Contact:
- Rinse eyes gently with water for at least 15 minutes.
- Lift eyelids occasionally while flushing.
- Seek prompt medical attention if irritation or injury persists.
Ingestion:
- Rinse mouth with water.
- Do not induce vomiting.
- Seek immediate medical attention even though metallic aluminum is generally considered low in toxicity.

FIRE FIGHTING MEASURES

Suitable Extinguishing Media:
- Use Class D dry powder extinguishers (e.g., dry sand, sodium chloride, or Met-L-X) for metal fires.
- Do not use water, foam, or CO₂—these may react violently with burning aluminum.
Specific Hazards:
- Highly flammable in fine powder form.
- Dust clouds may form explosive mixtures with air.
- Burning aluminum produces intense heat and bright white light, along with aluminum oxide fumes.
Protective Equipment for Firefighters:
- Use full fire-resistant protective clothing and self-contained breathing apparatus (SCBA).
Firefighting Instructions:
- Avoid disturbing the powder during fire.
- Fight fire from a safe distance and upwind.
- Isolate the area and evacuate unnecessary personnel.