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Whiting
Whiting is a finely ground, white, chalky substance primarily composed of calcium carbonate (CaCO₃). It is widely used as a pigment, filler, and extender in various industrial and commercial applications. Whiting provides opacity, brightness, and smoothness to products, enhancing their appearance and physical properties. Its natural abundance and versatility make it an economical additive in multiple manufacturing processes.
Whiting
Primary Uses
- Paints and Coatings Industry
- Pigment & Filler: Used to improve opacity, whiteness, and consistency in paints, coatings, and primers.
- Paper Industry
- Filler: Enhances brightness, opacity, and printability of paper and cardboard products.
- Rubber Industry
- Filler: Improves mechanical properties, reduces cost, and enhances processing of rubber compounds.
- Plastic Industry
- Extender & Filler: Increases volume and improves surface finish in plastic products such as PVC.
Secondary Uses
- Cosmetics
- Ingredient: Used in powders and creams to provide opacity and absorb moisture.
- Pharmaceuticals
- Excipient: Acts as an inert filler in tablets and powders.
- Agriculture
- Soil Amendment: Used to adjust soil pH and improve soil structure in farming applications.
- Construction
- Component: Used in plasters, sealants, and as a mild abrasive in cleaning compounds.
1. Basic Identification Attributes
- Chemical Name (IUPAC): Calcium carbonate
- Common/Trade Name: Whiting, Chalk, Calcium Carbonate Powder
- CAS Number: 471-34-1
- HS Code: 2521.00.00
- Synonyms: Chalk, precipitated calcium carbonate (PCC), ground calcium carbonate (GCC)
2. Physical & Chemical Properties
- Physical State: Fine white powder
- Color & Odor: White, odorless
- Particle Size: Typically less than 10 microns (varies by grade)
- Solubility: Insoluble in water; soluble in dilute acids
- Density: Approx. 2.7 g/cm³
- pH: Neutral to slightly alkaline in aqueous suspension
3. Safety & Hazard Attributes
- GHS Classification: Not classified as hazardous
- Toxicity: Low toxicity; generally safe under normal handling
- Exposure Limits: Avoid inhalation of dust; follow workplace dust exposure limits
4. Storage & Handling Attributes
- Storage Conditions: Store in dry, well-ventilated areas away from moisture and contaminants
- Container Type: Bags, bulk bags, or bulk storage silos
- Shelf Life: Indefinite if kept dry and uncontaminated
- Handling Precautions: Minimize dust generation; use dust masks if needed
5. Regulatory & Compliance Attributes
- Complies with: Major industrial chemical regulations and REACH standards
- Manufactured under: Good manufacturing practices for industrial grade materials
- Suitable for: Industrial, cosmetic, and agricultural applications depending on grade
6. Environmental & Health Impact
- Biodegradability: Naturally occurring mineral; environmentally benign
- Ecotoxicity: Low risk to aquatic and terrestrial organisms
- Bioaccumulation: Not applicable
Safety Handling Precautions
- PPE Required: Dust mask and eye protection recommended when handling powders
- Handling Guidelines: Use adequate ventilation to control dust; avoid inhalation
- Storage Measures: Keep containers sealed to prevent moisture ingress
First Aid Measures
- Inhalation: Move to fresh air; seek medical attention if breathing difficulty occurs
- Skin Contact: Wash with water and soap if irritation develops
- Eye Contact: Rinse eyes thoroughly with water; seek medical advice if irritation persists
- Ingestion: Generally non-toxic; consult a physician if large quantities ingested
Firefighting Measures
- Fire Hazards: Non-flammable
- Extinguishing Media: Not applicable; use appropriate media for surrounding fire
- Hazardous Combustion Products: None from whiting itself
Related 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.
Calcium Carbonate Filler
Calcium Carbonate Filler is a high-quality, uncoated ground calcium carbonate (GCC) specially engineered for use as a filler in polyethylene (PE) and other polyolefin resins. This grade of calcium carbonate is designed to enhance the physical and mechanical properties of plastics while providing cost-effective bulk and improved processing. It is a fine, white, odorless powder with excellent brightness, high purity, and uniform particle size distribution. Its use improves stiffness, impact resistance, dimensional stability, and surface finish in polyethylene applications such as films, sheets, pipes, and molded parts.
Calcium Carbonate Uncoated
Calcium Carbonate Uncoated is a naturally occurring mineral compound composed primarily of calcium, carbon, and oxygen with the chemical formula CaCO₃. It appears as a fine white powder or granules, widely used as a filler, pigment, and functional additive across various industries. The uncoated form means the calcium carbonate particles are not surface-treated, retaining their natural properties. It is valued for its high brightness, whiteness, and excellent compressibility. Uncoated calcium carbonate is used to enhance opacity, improve processing, and reduce costs in plastics, paints, coatings, adhesives, rubber, paper, and construction materials.
Carbon Black
Carbon Black Concentrate Dispersions are homogeneous, ready-to-use formulations consisting of high-quality carbon black uniformly dispersed in a compatible liquid or solid carrier system. These products are engineered to deliver precise, repeatable carbon black loading levels at concentrations of 15%, 25%, 40%, and 50%, enabling manufacturers to achieve consistent jetness, tint strength, UV protection, electrical conductivity, and reinforcement across a wide range of industrial applications. Each variant is identified by a unique product code (169FF, 121FF, 13FF, 32PP) denoting the specific carbon black grade, with the percentage indicating the exact weight concentration of carbon black in the dispersion. These products eliminate the handling hazards, dust contamination, and dispersion inconsistencies associated with raw powdered carbon black, while significantly improving manufacturing efficiency, color matching, and end-product performance. They are designed to be "let down" (diluted) into a compatible base material at recommended ratios to achieve the target carbon black level for specific formulation requirements. These are industrial-grade products and are not intended for food, pharmaceutical, or cosmetic applications unless explicitly certified otherwise.
Sodium Alumina Silicate
Sodium Alumina Silicate is an inorganic compound consisting of sodium, aluminum, and silicon oxides. It is typically found as a white, amorphous powder with excellent adsorption and ion-exchange properties. Commonly used as a detergent builder, water softener, and desiccant, sodium alumina silicate improves cleaning efficiency, controls water hardness, and aids moisture absorption. Its thermal stability and chemical inertness make it valuable across detergent manufacturing, water treatment, and various industrial processes.
White Cement
White Cement is a specialized type of Portland cement characterized by its bright white color and high purity. Manufactured from raw materials low in iron and manganese, it offers superior aesthetic qualities and is widely used for architectural and decorative applications. White Cement provides excellent strength, durability, and resistance to harsh environmental conditions, making it suitable for high-quality finishes, precast structures, and artistic concrete work.
