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Aluminium Silicate
Aluminium silicate is an inorganic compound composed of aluminum, silicon, and oxygen, often found naturally as a major component of clay minerals such as kaolinite, halloysite, and other aluminosilicates. It is a white to off-white powder with excellent thermal stability, chemical inertness, and physical durability. Due to its wide range of physicochemical properties—including high melting point, non-toxicity, and adsorptive capabilities—aluminium silicate is extensively used across diverse industries including ceramics, paints, paper, rubber, plastics, cosmetics, and pharmaceuticals. Its unique structure imparts benefits such as heat resistance, improved mechanical strength, and anti-caking properties, making it a vital raw material in both industrial and consumer products.
Description
Aluminium Silicate Uses
Primary Uses
Ceramics & Refractories
- Essential raw material in porcelain, sanitary ware, tiles, and advanced ceramic products.
- Key ingredient in refractory bricks and kiln linings, providing resistance to heat, thermal shock, and chemical corrosion.
- Enhances mechanical strength and dimensional stability at high temperatures.
Paints & Coatings
- Functions as an extender pigment, improving opacity, durability, and weather resistance.
- Improves adhesion and hardness of coatings, contributing to abrasion resistance and surface protection.
- Controls rheology and prevents cracking in dried paint films.
Paper Industry
- Used as a coating pigment and filler to boost brightness, opacity, and smoothness of paper surfaces.
- Improves printability, ink holdout, and reduces dusting during handling.
- Contributes to paper’s tactile quality and strength.
Rubber & Plastics
- Reinforcing filler in tires, hoses, belts, and molded plastic products to enhance strength, abrasion resistance, and durability.
- Improves thermal and dimensional stability of rubber and plastic compounds.
- Modifies electrical and thermal conductivity in specialized applications.
Cosmetics & Pharmaceuticals
- Acts as an absorbent and anti-caking agent in powders, deodorants, face masks, and makeup products.
- Used in tablet and capsule formulations to improve flowability and manufacturing consistency.
- Its inertness makes it suitable for sensitive skin and topical formulations.
Catalysts & Adsorbents
- Serves as a catalyst support in petrochemical refining and environmental applications.
- Used in purification processes for water treatment and gas filtration.
- Adsorbs heavy metals and organic contaminants due to its porous structure.
Secondary Uses
Detergents
- Used as a builder and anti-caking agent in powdered detergents, enhancing cleaning efficiency and powder flow.
Agriculture
- Acts as a soil conditioner and slow-release alumina/silica source in fertilizers.
- Prevents clumping in granular fertilizers.
Construction Materials
- Added to cement and concrete to improve strength, chemical resistance, and reduce porosity.
- Used in adhesives, sealants, and insulating materials.
Electronics & Electrical Applications
- Electrical insulator and dielectric material in microelectronics and circuit boards.
- Used in manufacturing capacitors and resistors due to thermal stability.
Food Additive
- E559, used as an anti-caking agent in powdered foods like salt, spices, and drink mixes.
- Prevents clumping, improves flow properties, safe within regulatory limits.
Animal Feed & Veterinary Uses
- Used as binder or anti-caking agent in animal feed powders.
- Carrier for veterinary supplements and medicines.
Environmental Applications
- Soil remediation agent immobilizing heavy metals.
- Used in barriers and liners to prevent pollutant leaching.
Textile Industry
- Filler and coating agent in textile finishing to improve smoothness, whiteness, and durability.
KEY ATTRIBUTES
1. Basic Identification Attributes
- Chemical Name (IUPAC): Aluminium Silicate
- Common/Trade Names: Kaolin, Mullite (when heated), Aluminosilicate
- CAS Number: 12173-37-6 (kaolinite form)
- Molecular Formula: Variable; general formula Al₂O₃·2SiO₂·2H₂O (kaolin)
- HS Code: 2521.00.00 (varies by country)
- Synonyms: Kaolin, China clay, Aluminosilicate
2. Physical & Chemical Properties
- Physical State: Powder or granular solid
- Color & Odor: White to off-white, odorless
- Melting Point: Decomposes >1750°C
- Boiling Point: N/A (decomposes)
- Density: ~2.6 g/cm³ (varies by form)
- Solubility: Insoluble in water and most solvents
- pH: Slightly acidic to neutral (~4.5-7 depending on source)
- Thermal Stability: High, withstands high temperatures without melting
- Surface Area: Variable, often high surface area due to fine particle size
3. Safety & Hazard Attributes
- Hazard Class (GHS): Generally regarded as non-hazardous
- NFPA Ratings: Health 1 (slight irritant), Flammability 0, Reactivity 0
- Exposure Limits: No established limits; considered low toxicity
- Reactivity: Stable under normal conditions; inert
- Incompatibilities: Strong acids and bases can degrade
4. Storage & Handling Attributes
- Storage: Store in dry, cool environment to prevent moisture uptake
- Container: Sealed bags or drums, moisture-proof packaging recommended
- Shelf Life: Indefinite if stored properly
- Handling: Avoid dust generation; use dust masks and goggles if airborne particles present
5. Regulatory & Compliance Attributes
- FDA: Approved as a food additive (E559) for anti-caking
- EFSA: Approved as food additive
- OSHA/NIOSH: No specific limits
- Transportation: Non-hazardous for transport
- Disposal: Can be disposed of as non-hazardous solid waste, following local regulations
6. Environmental & Health Impact
- Ecotoxicity: Low toxicity to aquatic and terrestrial organisms
- Biodegradability: Non-biodegradable but inert and stable in environment
- Persistence: Persistent but minimal bioaccumulation
- Carcinogenicity: Not classified as carcinogenic or mutagenic
- Environmental Fate: Remains stable, does not readily leach
SAFETY HANDLING PRECAUTIONS
Safety Handling Precautions
- PPE: Use gloves, goggles, dust masks when handling powders.
- Ventilation: Handle in well-ventilated areas to reduce inhalation of dust.
- Hygiene: Wash hands after use; avoid eating/drinking/smoking while handling.
- Spills: Sweep up dry; avoid water dispersal to prevent dust cloud.
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if irritation persists.
- Skin Contact: Wash with soap and water; seek medical care if irritation continues.
- Eye Contact: Flush with water for 15 minutes; get medical advice if irritation persists.
- Ingestion: Rinse mouth; seek medical advice if large amounts ingested.
Firefighting Measures
- Fire Hazards: Non-flammable; dust may pose minor explosion risk in confined spaces.
- Extinguishing Media: Water, foam, dry chemical for surrounding fires.
- Special Precautions: Avoid dust clouds; wear respiratory protection if dust present.
Related products
Almond Wax
Almond Wax is a plant-based wax derived from almond oil, typically used in cosmetics and skincare products. It is known for its emollient (moisturizing) properties, helping to soften and smooth the skin. Almond wax is rich in fatty acids and vitamin E, making it suitable for sensitive or dry skin. It is often used as a natural alternative to synthetic waxes in formulations like lip balms, creams, and lotions. Additionally, it provides a smooth texture and helps to stabilize emulsions in skincare products.
Aluminum Fine Powder
Aluminum fine powder consists of finely divided aluminum particles, typically metallic and silvery-white in appearance. It is produced by atomization or grinding of bulk aluminum and is valued for its high surface area, excellent conductivity, and lightweight metallic properties. Aluminum fine powder is extensively used in various industrial applications including metallurgy, pyrotechnics, coatings, additive manufacturing, and as a pigment. Due to its reactivity, it requires careful handling and storage. Its fine particulate nature makes it particularly useful where rapid oxidation or reaction is desired, such as in explosives or energetic materials. It is also employed in the manufacturing of paints, inks, and cosmetics to impart metallic luster.
Aluminum hydroxide
Aluminum Hydroxide, chemically known as Al(OH)₃, is a white, odorless, and odorless powder or gelatinous substance. It is widely used in pharmaceuticals as an antacid to neutralize stomach acid and relieve indigestion and heartburn. Beyond healthcare, aluminum hydroxide is a crucial component in water purification, fire retardants, and as a precursor or filler in various industrial applications. It functions as a flame retardant by releasing water upon heating, thus cooling the material and diluting flammable gases. Due to its amphoteric nature, it can react both as an acid and base, enhancing its versatility. Aluminum hydroxide is often utilized in manufacturing aluminum salts and in producing aluminum oxide.
Aquasol
Aquasol is a water-soluble, high-purity soluble powder typically formulated for use as a mineral supplement or a delivery system in various industries. It often contains vitamins, minerals, or other active ingredients in a readily bioavailable aqueous form. Aquasol products are known for their excellent solubility in water, rapid absorption, and versatility in applications ranging from pharmaceuticals to food fortification and animal nutrition. The exact composition can vary depending on the intended use, but the common trait is its ability to dissolve quickly and evenly in aqueous media.
Arabic Gum
Arabic Gum, also known as Gum Acacia, is a natural gum harvested from the sap of Acacia trees, primarily Acacia senegal and Acacia seyal. It is a complex mixture of polysaccharides and glycoproteins, valued for its excellent emulsifying, stabilizing, and thickening properties. Arabic Gum is water-soluble, forms clear solutions, and is widely used in the food industry as a stabilizer and emulsifier. Additionally, it finds applications in pharmaceuticals, cosmetics, and printing industries due to its biodegradability, non-toxicity, and versatility.
Avocado wax
Safety Handling Precautions
- Use gloves and safety goggles to avoid skin and eye irritation.
- Store away from ignition sources as the wax is combustible but with low flammability risk.
- Handle in well-ventilated areas to minimize inhalation of dust or fumes during processing.
- Wash hands thoroughly after handling.
First Aid Measures
- Inhalation: Move to fresh air if respiratory irritation occurs; seek medical attention if symptoms persist.
- Skin Contact: Wash with soap and water; seek medical advice if irritation develops.
- Eye Contact: Rinse eyes thoroughly with water for at least 15 minutes; seek medical help if irritation continues.
- Ingestion: Rinse mouth with water; seek medical advice if large quantities are ingested.
Firefighting Measures
- Fire Hazards: Combustible; may burn producing smoke and toxic fumes.
- Extinguishing Media: Use foam, dry chemical powder, or carbon dioxide (CO₂) extinguishers. Avoid water jets which may spread fire.
- Special Precautions: Firefighters should wear full protective gear and self-contained breathing apparatus (SCBA).
Basic Chrome
Basic Chrome Sulfate, commonly referred to as Basic Chrome, is a chromium-based chemical compound primarily used in the leather tanning industry. It appears as a greenish crystalline powder and contains chromium(III) sulfate complexed with basic chromium salts. Basic Chrome is favored for its ability to produce soft, flexible, and durable leather by crosslinking collagen fibers. It is the most widely used tanning agent worldwide due to its effectiveness and cost-efficiency. Besides tanning, Basic Chrome finds applications in other industries like pigments and catalysts.
Beeswax
Beeswax is a natural wax produced by honeybees of the genus Apis. It is secreted by worker bees from specialized glands and used to build honeycomb cells. Beeswax is a complex mixture of esters, fatty acids, and hydrocarbons, characterized by a pale yellow to brown color, a pleasant honey-like aroma, and a firm yet pliable texture. It has excellent emulsifying, binding, and protective properties, making it widely used in cosmetics, pharmaceuticals, food, and industrial applications. Beeswax is prized for its natural origin, biodegradability, and skin-friendly characteristics.
