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Calcium Carbonate

Calcium Carbonate is a versatile white powder used primarily as a filler and pH regulator in various industries across East Africa.

When specifying Calcium Carbonate, industrial buyers prioritize its consistency, purity, and applicability across multiple sectors such as paper & pulp, construction, and water treatment.

Packaging

25kg bags, 50kg bags, 200L drums

Supply Region

Kenya, East Africa

Supplier

Zenco Systems Ltd

What is Calcium Carbonate?

When specifying Calcium Carbonate, industrial buyers prioritize its consistency, purity, and applicability across multiple sectors such as paper & pulp, construction, and water treatment. This naturally occurring compound is indispensable in East African manufacturing, where control over product quality and supply chain reliability is critical. Calcium Carbonate, with the chemical formula CaCO3, appears as a white crystalline powder widely recognized for its buffering capacity and filler properties. It is utilized extensively as a pH regulator, filler, and abrasive agent in industries operating in Kenya, Uganda, Tanzania, and beyond. Its commercial importance lies in its ability to improve product durability, reduce costs through bulk formulation, and stabilize chemical processes across food, pharmaceutical, and industrial manufacturing. Zenco Systems Ltd supplies Calcium Carbonate tailored to these requirements, ensuring strict quality control and dependable delivery to East African industries.

Calcium Carbonate: Detailed Product Overview

Calcium Carbonate (CaCO3) is a naturally abundant inorganic compound commonly extracted from limestone, chalk, or marble deposits. The crystalline powder supplied by Zenco Systems Ltd exhibits high chemical and physical stability, essential for downstream industrial processes. Chemically, Calcium Carbonate functions primarily as a pH buffer due to its ability to neutralize acidic environments, forming calcium ions and bicarbonate, which stabilize pH levels effectively. This buffering action is critical in applications like water treatment and pharmaceuticals. Beyond pH regulation, its fine particulate nature gives it excellent filling properties, enhancing bulk, texture, and opacity in materials such as paper, plastics, paints, and rubber. Its abrasion characteristics further lend to its role in toothpaste and cleaning products where mild scrubbing action is required.

In the paper and pulp sector, Calcium Carbonate serves as a filler to increase brightness and improve the printability of paper without compromising strength. The particle size distribution and surface treatment influence its performance; coarser grades improve opacity and bulk, while ultrafine grades enhance smoothness. Its inertness ensures it does not react adversely during pulp processing. Furthermore, the product’s consistent purity and whiteness, verified through analytical testing, maintain desired product specifications and customer satisfaction. Buyers should confirm exact grade and purity details with Zenco Systems Ltd to match the specific needs of their formulations. The product is packaged in industry-standard 25kg and 50kg bags, as well as 200L drums, ensuring easy handling and storage suitable for East African logistics and trade practices.

Applications and Uses of Calcium Carbonate

Water Treatment

In water treatment, Calcium Carbonate acts as a pH stabilizer and hardness regulator. It neutralizes acidic water and precipitates impurities, improving water clarity and safety. Typical dosing depends on water acidity but often ranges from 50 to 200 mg/L. This results in controlled alkalinity levels, reducing corrosion in pipes and facilitating the removal of heavy metals and suspended solids.

Food Additive

As a food additive, Calcium Carbonate is used primarily as a calcium fortifier and acidity regulator. Approved for use in East African food industries, it enriches baked goods, dairy products, and powdered supplements with essential calcium while maintaining balanced pH. Its food-grade form complies with local regulatory standards and is incorporated in controlled concentrations to ensure safety and nutritional benefits.

Construction Filler

In construction, Calcium Carbonate serves as a mineral filler in cement, plaster, and paints. It enhances mechanical strength and adjusts setting times. By acting as an inert volume additive, it improves workability and cost-efficiency without compromising structural integrity. Usage levels vary from 10% up to 40% depending on the product specification and application.

Pharmaceutical Excipient

Pharmaceutical formulations use Calcium Carbonate as an excipient and antacid. Its role includes acting as a diluent in tablet manufacturing, improving powder flow and compressibility. Additionally, its alkaline nature neutralizes excess gastric acid, providing symptomatic relief. Pharmaceutical-grade Calcium Carbonate supplied by Zenco Systems Ltd adheres to strict purity standards and is suitable for various dosage forms.

Paints and Coatings

Calcium Carbonate improves opacity, brightness, and viscosity control in paints and coatings. As a pigment extender, it optimizes coverage and durability while reducing production costs. Fine particle grades disperse uniformly, enhancing gloss and surface finish. It also contributes to film integrity and resistance against wear under environmental exposure.

Rubber Filler

In rubber manufacturing, Calcium Carbonate increases volume and improves mechanical strength without significantly altering elasticity. It compensates for raw material costs and enhances processability by improving compound stability. The powder’s inert nature prevents unwanted chemical reactions that could degrade rubber properties.

Agricultural Lime

Calcium Carbonate is used as agricultural lime to amend soil acidity in East African farmlands. By neutralizing acidic soils, it enhances nutrient availability and improves crop yields. Application rates depend on soil testing results but generally range from 1 to 5 tons per hectare, adjusted to the target pH level and crop requirements.

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

Benefits and Advantages

Cost Efficiency in Formulations

Using Calcium Carbonate as a filler reduces the consumption of expensive active ingredients, lowering overall formulation costs. Its abundant availability and ease of incorporation make it a budget-friendly choice for industries like paper manufacturing and plastics, enabling scalable production without compromising product quality.

Versatility Across Industries

The chemical stability and functional properties of Calcium Carbonate allow it to serve diverse industrial functions—from pH buffering in water treatment to acting as a pharmaceutical excipient. This adaptability makes it a critical raw material across multiple sectors within East Africa’s growing industrial base.

Enhanced Product Performance

In applications such as paints and coatings, Calcium Carbonate improves brightness and opacity, leading to superior visual and physical product characteristics. Its role in paper production enhances brightness and smoothness, directly influencing end-product quality and customer satisfaction.

Reliable Supply Chain

Zenco Systems Ltd provides consistent quality and dependable delivery across Kenya, Uganda, and Tanzania. This logistical reliability ensures uninterrupted production schedules for customers dependent on timely raw material availability, a key operational advantage in dynamic markets.

Packaging Information

Calcium Carbonate from Zenco Systems Ltd is supplied in practical packaging options appropriate for East African logistics. Standard packages include 25kg and 50kg woven polypropylene bags, suitable for manual handling and storage in typical industrial warehouses. For larger industrial consumers, 200L drums are available to facilitate bulk handling and reduce packaging waste. These packaging formats align with common handling equipment and transport infrastructure in Kenya, Uganda, Tanzania, and neighboring countries. Custom packaging and bulk supply can be discussed to meet specific procurement requirements.

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

Storage and Handling

Store Calcium Carbonate in a cool, dry, well-ventilated area protected from moisture to prevent caking and degradation. Avoid exposure to acidic materials and direct sunlight to maintain chemical stability. Use sealed containers or bags to limit dust release. Handling should include dust extraction systems or local ventilation when transferring powders. Personal protective equipment such as dust masks and gloves is recommended to prevent inhalation and skin contact. Shelf life is generally stable if stored under these conditions, but regular quality checks are advised for long-term stock.

Safety Information

Calcium Carbonate is largely considered low hazard but can cause respiratory irritation if dust is inhaled. Using appropriate PPE, including dust masks and eye protection, minimizes risk when handling powder. In case of inhalation, move affected individuals to fresh air. Skin or eye contact may cause mild irritation and should be rinsed thoroughly with water. Disposal should comply with local regulations and avoid release into waterways. Consult the Safety Data Sheet (SDS) provided by Zenco Systems Ltd for detailed hazard, first aid, and handling instructions.

Technical Specifications

GradeConfirm with supplier
PurityConfirm with supplier
FormulaCaCO₃
Packaging25kg bags, 50kg bags, 200L drums
AppearanceWhite crystalline powder
CAS Number471-34-1
Chemical NameCalcium Carbonate
Storage ConditionsCool, dry, ventilated, moisture-free environment

Applications

  • Water treatment
  • Food additive
  • Construction filler
  • Pharmaceutical excipient
  • Paints and coatings
  • Rubber filler
  • Agricultural lime

Technical Data Sheet (TDS)

GradeConfirm with supplier
PurityConfirm with supplier
FormulaCaCO₃
Packaging25kg bags, 50kg bags, 200L drums
AppearanceWhite crystalline powder
CAS Number471-34-1
Chemical NameCalcium Carbonate
Storage ConditionsCool, dry, ventilated, moisture-free environment

Product Features

  • - White crystalline powder with consistent purity
  • - Natural buffering agent for pH stabilization
  • - Effective as filler to increase bulk and opacity
  • - Chemically inert and stable under storage
  • - Fine particle size adjustable for specific uses
  • - Non-toxic with food-grade availability

Industries Served

  • - Paper and pulp
  • - Food and beverage
  • - Pharmaceutical manufacturing
  • - Construction materials
  • - Paints and coatings
  • - Rubber and plastics
  • - Water treatment
  • - Agriculture

Product Overview

Frequently Asked Questions About Calcium Carbonate

What is Calcium Carbonate used for in paper production?

In paper manufacturing, Calcium Carbonate serves as a filler to enhance brightness, opacity, and surface smoothness, improving printing quality and reducing costs.

Do you supply Calcium Carbonate outside Kenya?

Yes, Zenco Systems Ltd supplies Calcium Carbonate across East Africa including Uganda, Tanzania, Rwanda, and neighboring countries, supported by a reliable regional logistics network.

Is the Calcium Carbonate food grade?

Zenco Systems Ltd offers food-grade Calcium Carbonate suitable for use as a food additive and calcium supplement, complying with relevant East African food safety standards.

What packaging sizes are available for Calcium Carbonate?

Standard packaging includes 25kg and 50kg bags and 200L drums, suitable for industrial and commercial users in Kenya, Uganda, and Tanzania.

How should Calcium Carbonate be stored?

Store in a cool, dry place away from moisture and acids to prevent caking or chemical degradation; use sealed containers to reduce dust exposure.

What precautions are needed when handling Calcium Carbonate?

Use dust masks, gloves, and eye protection to avoid inhalation and contact irritation. Ensure good ventilation and dust control during handling.

How do I confirm the purity and grade for my application?

Contact Zenco Systems Ltd directly with your application requirements to receive certification and technical data specific to your ordered lot.

Can Calcium Carbonate be used in rubber manufacturing?

Yes, it functions as an inert filler to increase volume and improve mechanical strength without compromising elasticity of rubber compounds.

What is the typical dosage of Calcium Carbonate in water treatment?

Dosage varies with water acidity but generally ranges from 50 to 200 mg/L to achieve effective pH stabilization and impurity removal.

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