CAS 1332-58-7
Kaolin
CAS 1332-58-7Al2Si2O5(OH)4
Kaolin is a fine white powder widely used in the paper industry for improving brightness, gloss, printability, and smoothness as a coating pigment and filler. Its unique properties, including high brightness and fine particle size, make it essential in ceramics, paints, rubber, and plastics. Industries in Kenya and East Africa rely on its quality for varied applications such as enhancing the plasticity and strength of ceramics, improving the coverage in paints, and reinforcing rubber products. Supplied in technical grades, Kaolin's versatility extends to cosmetics, where it offers gentle exfoliating capabilities.
Main applicationPaper manufacturing — Enhances brightness, gloss, and printability
Kaolin is significant for manufacturers seeking to optimize product qualities such as brightness and opacity without excessive costs. Its role in reinforcing and improving product physical properties makes it invaluable across multiple industries, from paper and ceramics to cosmetics and construction materials. By ensuring product consistency and availability in East Africa, Kaolin supports local and regional manufacturing capabilities, enhancing product quality and competitiveness.
Also known as
- China clay
- Kaolinite
Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- 50 kg bags available for bulk supply
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 1332-58-7
- Chemical formula
- Al2Si2O5(OH)4
- Grade
- Technical grade
- Appearance
- Fine white powder
- Brightness
- ~80 %
- Moisture content
- ≤ 1.5 %
- SiO2 content
- 45-48 %
- Al2O3 content
- 36-38 %
- Fe2O3 content
- ≤ 1 %
Kaolin is characterized by its molecular formula, Al2Si2O5(OH)4, and fine white powder appearance. Its technical grade typically offers around 80% brightness, crucial in applications requiring high whiteness and opacity, such as paper and ceramics. The ~45-48% SiO2 and ~36-38% Al2O3 composition provides the physical properties needed for effective reinforcement in rubber and opacity improvements in paints. Buyers should consider the brightness level and moisture content when selecting Kaolin for specific uses, as variations can impact the final product quality.
Delivery
Kaolin is dispatched from our Nairobi warehouse across Kenya, and export delivery is arranged to the wider East African market. Lead time depends on quantity and grade and is confirmed with your quotation — see delivery and collection for the towns we reach and how dispatch works.
Applications & uses
- Paper manufacturing — Enhances brightness, gloss, and printability
- Ceramics production — Improves plasticity and strength
- Paint industry — Acts as an extender, reducing costs
- Rubber manufacturing — Provides reinforcement and stability
- Plastics — Enhances dimensional stability
- Catalysts — Functions as a support material
- Cosmetics — Offers oil absorption and gentle exfoliation
- Construction materials — Used in concrete and mortar
- Pharmaceuticals — Suitable for tablet coatings
Industries we supply this to
Why buy this from Sparks
- Improves product whiteness and opacity in paper and paints
- Enhances ceramic strength and plasticity
- Reduces titanium dioxide costs in coatings
- Strengthens rubber products
- Acts as a gentle exfoliant in cosmetics
- Offered in manageable, bulk packaging for easy handling
Quality assurance
- Batches are checked against the specification values listed above before dispatch.
State what your process, auditor or customs clearance requires when you request a quotation, and it is confirmed with the quote.
Safety, handling & storage
Always consult the full Safety Data Sheet before handling. Personnel must use appropriate PPE and follow local regulations for storage, transport and disposal.
Frequently asked questions
What is the CAS number of Kaolin?
The CAS registry number for Kaolin is 1332-58-7. Its chemical formula is Al2Si2O5(OH)4. Quote this number when requesting a quotation or checking documentation, as it identifies the substance unambiguously regardless of the trade name used.
What are the other names for Kaolin?
Kaolin is also referred to as China clay and Kaolinite. These names describe the same substance, so a specification or enquiry written against any of them can be matched to this product.
What grade of Kaolin is supplied?
Kaolin is supplied as Technical grade. State the grade your process requires when requesting a quotation — where an alternative grade can be sourced, it is confirmed at quotation stage rather than assumed.
What does Kaolin look like?
Kaolin is described as fine white powder. Appearance is a useful first check on receipt of goods, though it does not replace the certificate of analysis for confirming that the material meets specification.
What is Kaolin used for?
Common applications include paper manufacturing — Enhances brightness, gloss, and printability, ceramics production — Improves plasticity and strength, paint industry — Acts as an extender, reducing costs, rubber manufacturing — Provides reinforcement and stability, plastics — Enhances dimensional stability and catalysts — Functions as a support material. The suitability of the product for a particular process depends on the grade and specification required, which is worth confirming against your own process conditions.
Which industries use Kaolin?
Kaolin is supplied to the Construction & Admixtures, Pharmaceuticals & Healthcare, Cosmetics & Personal Care and Paints, Coatings & Inks sectors. These are the industries this product is listed against in our catalogue; if your application falls outside them, we can advise on suitability before you order.
What packaging is Kaolin available in?
Kaolin is supplied in 50 kg bags available for bulk supply. Where a different pack size or bulk delivery is required, it is confirmed at quotation stage against availability rather than listed here as standard.
What is the EC number for Kaolin?
Kaolin is recorded against the EC number 310-194-1; 619-103-2. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
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