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Calcium Carbonate

Calcium Carbonate is a versatile mineral used in manufacturing, water treatment, and food industries across East Africa.

Calcium Carbonate functions primarily as a pH regulator and functional filler across diverse industrial settings.

Packaging

25kg bags, 50kg bags, 200L drums

Supply Region

East Africa, Kenya

Supplier

Zenco Systems Ltd

What is Calcium Carbonate?

Calcium Carbonate functions primarily as a pH regulator and functional filler across diverse industrial settings. It neutralizes acidic environments efficiently due to its chemical reactivity with acids, a property that drives many of its uses. This compound is an essential additive in paints and coatings, plastics, water treatment, food processing, agriculture, and pharmaceuticals.

Known chemically as CaCO3, Calcium Carbonate is found as a white crystalline powder or granular solid. Its physical form and purity significantly influence performance in specific applications. In East Africa—including Kenya, Uganda, and Tanzania—Zenco Systems Ltd provides consistent grades of Calcium Carbonate tailored to suit various industrial requirements, emphasizing local supply reliability and compliance with regional standards.

The mineral’s adaptability, combined with its abundance and cost-effectiveness, makes it a staple ingredient for manufacturers and processors requiring both chemical functionality and economical filler material. Industries specific to this region increasingly depend on Calcium Carbonate for enhancing product durability, controlling acidity, and contributing crucial calcium content where needed.

Calcium Carbonate: Detailed Product Overview

Calcium Carbonate is composed of calcium, carbon, and oxygen atoms arranged in a stable crystalline matrix. Its chemical formula, CaCO3, reflects its composition as a calcium salt of carbonate. This mineral’s primary industrial function comes from its ability to neutralize acids through a reaction with hydrogen ions, yielding carbon dioxide and water. This acid-neutralizing mechanism underpins its widespread use in water treatment processes, where it buffers pH to maintain chemical stability.

Physically, Calcium Carbonate is presented as either a fine, white crystalline powder or as a granular solid, with particle size distributions carefully controlled to suit application needs. Finer grades improve gloss and uniform dispersion in paints and coatings; coarser grades provide bulk and mechanical strength in construction fillers or agricultural lime.

Performance characteristics include high brightness, opacity, and chemical inertness under neutral or alkaline conditions. It is insoluble in water but readily soluble in mineral acids, a balance that allows versatility in formulations and processing. The mineral’s hardness and low abrasion ensure it does not excessively wear processing equipment.

Suppliers must rigorously test for parameters like purity levels, particle size distribution, and moisture content because these affect the efficiency and appearance of end products. Zenco Systems Ltd ensures each batch meets strict specifications aligned with industrial standards, supporting the East African market's diverse demands in paints, plastics, paper, pharmaceuticals, and mining formulations.

Applications and Uses of Calcium Carbonate

Water Treatment

Calcium Carbonate is used to neutralize acidic water sources by reacting with excess hydrogen ions to raise pH, preventing corrosion in pipes and improving water quality. Doses vary depending on water acidity, but typically it is applied as a slurry or suspension to adjust the pH balance efficiently. It also helps precipitate harmful metals, making water safer for industrial and domestic use.

Food Processing

In food manufacturing, Calcium Carbonate serves as a calcium supplement and acidity regulator. It is commonly added to dietary products, fortified foods, and baking powders. The mineral provides a stable, non-reactive calcium source that does not alter taste significantly. Its carefully controlled purity levels ensure compliance with food-grade standards.

Manufacturing Raw Material

Calcium Carbonate acts as a filler and pigment extender in paints, coatings, adhesives, and plastics. Its high brightness and opacity improve product aesthetics while reducing manufacturing costs by replacing more expensive raw materials. Particle size and surface treatment are optimized to enhance dispersion and adhesion in polymer and coating formulations.

Construction Filler

In construction, Calcium Carbonate strengthens composites like cement and plaster by improving workability and durability. It reduces shrinkage and cracking within building materials, extending service life. Its inert nature ensures compatibility with other additives, making it a standard ingredient in East African construction formulations.

Pharmaceutical Ingredient

Used as an excipient and antacid, Calcium Carbonate acts as a pH buffer and calcium supplement in pharmaceutical formulations. It is included in tablet manufacturing to improve compressibility and in formulations requiring controlled dissolution rates. Its purity and particle size are tightly regulated to meet pharmacopeial standards.

Agricultural Lime

Calcium Carbonate amends soil acidity by neutralizing acidic soils, improving nutrient availability and microbial activity. Farmers in East Africa apply it to increase crop yields and improve soil structure. Application rates depend on soil testing, but its long-lasting effect on pH can reduce fertilizer requirements over time.

Paper and Plastics Filler

In paper manufacturing, Calcium Carbonate increases brightness and opacity while reducing raw material usage, enhancing print quality and reducing costs. In plastics, it improves stiffness and heat resistance while lowering density. The mineral’s particle size and surface treatment are tuned to optimize bonding and finish.

Mining and Metallurgy

Calcium Carbonate serves as a neutralizing agent in mineral processing, controlling pH during ore treatment and flotation processes. It also aids in flue gas desulfurization and slag conditioning. Its chemical stability and neutralizing capacity support various refining steps in mining operations.

Looking for alternatives for a specific process? Browse the full Paints & Coatings range or ask our technical team which grade fits your application.

Benefits and Advantages

Cost-Effective Filler

Calcium Carbonate provides an economical alternative to pricier raw materials in paints, plastics, and paper by increasing bulk without compromising key properties. Its abundance in East Africa contributes to manageable pricing, helping manufacturers optimize production costs while maintaining quality.

Reliable pH Control

By neutralizing acids precisely and consistently, Calcium Carbonate stabilizes industrial processes where pH matters—such as water treatment and food processing. This ensures efficient reactions, reduces equipment corrosion, and enhances product stability, critical factors for operational continuity.

Physical Property Enhancement

Adjusting particle size allows Calcium Carbonate to improve gloss, texture, and mechanical strength in coatings and plastics, tailoring products to exact performance specifications. Its inert nature also ensures no unwanted chemical interactions, preserving formulation integrity.

Broad Industry Applicability

The mineral meets stringent specifications required by food, pharmaceutical, agricultural, and construction sectors, offering a single versatile material suitable for multiple process streams. This versatility reduces supplier complexity and streamlines procurement.

Packaging Information

Zenco Systems Ltd supplies Calcium Carbonate in multiple packaging formats suitable for industrial clients across East Africa. Standard bulk packaging includes 25kg and 50kg woven polypropylene bags, ideal for small to medium scale operations. For larger industrial consumers, 200L drums are available, facilitating easier handling and storage. Cross-border logistics ensure supply continuity to Kenya, Uganda, Tanzania, and Rwanda, with options for customized packaging available upon request.

Standard formats: 25kg bags, 50kg bags, 200L drums

Storage and Handling

Calcium Carbonate should be stored in a dry, well-ventilated environment to prevent moisture uptake and caking. Its powder form makes it susceptible to airborne dust; therefore, handling in enclosed systems or with dust extraction equipment is recommended. Containers must be kept sealed when not in use to maintain quality. Avoid mixing with strong acids in storage areas to prevent hazardous reactions. Under proper conditions, the product remains stable indefinitely.

Safety Information

Calcium Carbonate is considered non-hazardous under typical handling conditions but its fine powder form can irritate respiratory passages if inhaled. Personal protective equipment such as dust masks and goggles is advised during handling. In case of eye contact, flush immediately with water. Dispose of unused material in accordance with local environmental regulations and avoid release into waterways. For comprehensive guidance, consult the Safety Data Sheet (SDS) provided by Zenco Systems Ltd.

Technical Specifications

pHTypically neutral to slightly alkaline
GradeConfirm with supplier
PurityConfirm with supplier
FormulaCaCO3
Packaging25kg bags, 50kg bags, 200L drums
AppearanceWhite crystalline powder or granular solid
CAS Number1317-65-3
SolubilityInsoluble in water; soluble in acids
Chemical NameCalcium Carbonate
Storage ConditionsKeep dry and well ventilated

Applications

  • Water treatment
  • Food processing
  • Manufacturing raw material
  • Construction filler
  • Pharmaceutical ingredient
  • Agricultural lime
  • Paper and plastics filler
  • Mining and metallurgy

Technical Data Sheet (TDS)

pHTypically neutral to slightly alkaline
GradeConfirm with supplier
PurityConfirm with supplier
FormulaCaCO3
Packaging25kg bags, 50kg bags, 200L drums
AppearanceWhite crystalline powder or granular solid
CAS Number1317-65-3
SolubilityInsoluble in water; soluble in acids
Chemical NameCalcium Carbonate
Storage ConditionsKeep dry and well ventilated

Product Features

  • - White crystalline powder or granular solid
  • - Insoluble in water, soluble in acids
  • - Neutral to slightly alkaline pH
  • - High brightness and opacity
  • - Chemically stable and inert
  • - Variable particle size for tailored use

Industries Served

  • - Paints and coatings
  • - Plastic manufacturing
  • - Water treatment
  • - Food and beverage
  • - Pharmaceuticals
  • - Agriculture
  • - Paper production
  • - Mining and metallurgy

Product Overview

Frequently Asked Questions About Calcium Carbonate

What industries use Calcium Carbonate in East Africa?

Calcium Carbonate is widely used across paints and coatings, plastics, water treatment, food processing, agriculture, pharmaceuticals, paper manufacturing, and mining industries in Kenya, Uganda, Tanzania, and Rwanda.

How does Calcium Carbonate function in water treatment?

It neutralizes acidic water by reacting with hydrogen ions to raise pH, preventing corrosion and improving water quality. Typical application is as a slurry dosed according to the water's acidity level.

Is the Calcium Carbonate supplied food-grade?

Certain grades supplied by Zenco Systems Ltd meet food-grade specifications suitable for use as a calcium supplement or acidity regulator. Confirm exact purity and compliance with the supplier.

What packaging options are available for Calcium Carbonate?

Standard packaging includes 25kg and 50kg bags, and 200L drums. Bulk packaging and customized formats can be arranged for larger industrial clients across Kenya, Uganda, Tanzania, and Rwanda.

How should Calcium Carbonate be stored and handled?

Store in dry, well-ventilated areas away from strong acids. Protect from moisture and dust dispersion during handling; use appropriate PPE like dust masks and goggles.

Do you supply Calcium Carbonate outside Kenya?

Yes, Zenco Systems Ltd supplies Calcium Carbonate across East Africa including Uganda, Tanzania, and Rwanda, with reliable cross-border logistics and tailored delivery schedules.

How does particle size affect Calcium Carbonate performance?

Finer particle sizes improve gloss and uniform dispersion in coatings and plastics, while coarser particles enhance bulk and mechanical strength in construction and agricultural applications.

What key quality parameters should a buyer check before purchasing?

Buyers should verify purity, particle size distribution, moisture content, and compliance with regulatory standards, all typically certified by a supplier’s certificate of analysis.

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