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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.
Binder
A binder is a broad category of substances—organic or inorganic—used to hold different materials together in a cohesive mass. Common binders include natural polymers (starch, cellulose derivatives, proteins), synthetic resins (PVA, acrylics, phenolics), and inorganic binders (clays, cement, lime). They are essential in industries such as pharmaceuticals, construction, coatings, ceramics, adhesives, and printing, where they provide structural integrity, adhesion, and controlled release properties.
Calcium Carbonate Light
Calcium Carbonate Light is a finely ground, low bulk density natural mineral composed primarily of calcium carbonate (CaCO₃). Compared to standard grades, it has a lower density and larger particle size distribution, making it suitable for applications where light weight and high brightness are important. This form is extensively used as a filler and extender in industries such as plastics, paints, rubber, paper, adhesives, and construction materials to improve opacity, brightness, and texture, while maintaining low weight and cost efficiency. Its chemical inertness and whiteness provide functional and aesthetic advantages across formulations.
Calcium Sulphate
Calcium Sulphate is an inorganic compound composed of calcium, sulfur, and oxygen, commonly found in two forms: dihydrate (gypsum, CaSO4·2H2O) and anhydrous (CaSO4). It appears as a white or off-white crystalline powder or granules with low solubility in water. Calcium Sulphate is widely used in construction, agriculture, pharmaceuticals, food industry, and various industrial applications. It acts as a filler, hardening agent, and drying agent due to its physical and chemical properties. The dihydrate form (gypsum) is notable for use in plaster and cement, while the anhydrous form is often used as a drying agent and in refractory materials.
Filler WTD
Filler WTD is a versatile, finely processed powdered filler primarily used in a wide range of industrial applications including paints, coatings, plastics, adhesives, sealants, rubber compounds, and construction materials. It is engineered to improve product performance by enhancing mechanical properties, increasing volume, reducing cost, and improving processing characteristics. Filler WTD typically exhibits excellent dispersibility, consistent particle size distribution, and good compatibility with various resin systems and binders. Its primary role is to act as an inert extender or reinforcing agent, providing bulk and stability while maintaining or enhancing the physical and chemical properties of the final formulation.
Magnesium Carbonate Light
Magnesium Carbonate Light is a fine, white, odorless powder primarily composed of magnesium carbonate (MgCO₃). It is characterized by its light texture and high purity. This mineral compound is widely used across various industries due to its excellent absorption properties, mild alkalinity, and non-toxic nature. Magnesium Carbonate Light is commonly employed as an antacid, drying agent, filler, and flow aid in food, pharmaceutical, cosmetic, and industrial applications.
Sodium Sulphate
Sodium Sulphate (Na₂SO₄) is a white crystalline powder or granule, odorless and highly soluble in water. This 25kg packaged product is widely used in detergents, glass manufacturing, chemical industries, and pulp and paper processing. It acts as a filler, bulking agent, and drying agent, with excellent stability and non-reactivity under standard storage conditions. Its cost-effectiveness and availability make it an essential raw material in many 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.
