CAS 1332-58-7
China Clay
CAS 1332-58-7Al2Si2O5(OH)4≈258.16 g/mol (hydrated)
China Clay, also known as kaolin (CAS 1332-58-7), is a fine white powder used primarily as a filler and coating pigment in various industries. Its notable features include high brightness and chemical stability, making it ideal for applications in paper, ceramics, paints, and cosmetics. Industries in Kenya and East Africa leverage China Clay's ability to enhance mechanical properties and improve product quality. Sourced from India, this 50 kg variant offers consistent quality crucial for industrial-grade requirements.
Main applicationPaper industry — Used as filler and coating pigment for brightness.
China Clay plays a crucial role in improving the quality and functionality of products across diverse industries such as paper, ceramics, and cosmetics. Its properties, including high brightness and fine particle size, contribute to enhanced product aesthetics and performance. In a growing market like East Africa, China Clay's versatility helps manufacturers maintain competitive edge through consistent product quality and reliable supply.
Also known as
- Kaolin
- Kaolinite
- EINECS 310-194-1
- EINECS 310-127-6.
Trade pricing
Quoted per enquiry
Pricing depends on volume, grade and delivery point. Our desk responds within two working hours.
Available packaging
- Packaged in 50 kg bags.
Documentation
Batch-specific COA issued with every consignment.
Technical specifications
- CAS number
- 1332-58-7
- Chemical formula
- Al2Si2O5(OH)4
- Molecular weight
- ≈258.16 g/mol (hydrated)
- Grade
- Technical grade
- Appearance
- Fine white powder
- Concentration
- 85-95% kaolinite
China Clay is composed primarily of the mineral kaolinite, with a general molecular formula of Al2Si2O5(OH)4. The hydrated form carries a molecular weight of approximately 258.16 g/mol, whereas the anhydrous equivalent is about 222.13 g/mol. Typically supplied as a fine, white powder, China Clay is valued for its high brightness and small particle size. When selecting China Clay, buyers consider factors such as particle size distribution and specific end-use requirements. Industrial applications demand consistency and quality, making it integral to perform due diligence on supplier reliability and product specification. Its components generally include 85-95% kaolinite, complemented by quartz and mica as minor constituents.
Delivery
China Clay 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 industry — Used as filler and coating pigment for brightness.
- Ceramics manufacture — Provides smoothness and whiteness.
- Paints and coatings — Acts as an opacifier and filler.
- Rubber industry — Enhances reinforcement and mechanical properties.
- Plastics — Used as an extender to improve strength.
- Cosmetics — Functions as an absorbent.
- Adhesives — Integral component.
- Inks — Provides opacity and viscosity control.
Industries we supply this to
Why buy this from Sparks
- High brightness enhances aesthetic quality of products.
- Fine particle size allows superior coating and filler performance.
- Consistent quality ensures reliability in industrial applications.
- Chemical stability suits diverse manufacturing processes.
- Available in convenient 50 kg packaging for bulk use.
- Versatile across multiple industries, reducing need for multiple suppliers.
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 China Clay?
The CAS registry number for China Clay is 1332-58-7. Its chemical formula is Al2Si2O5(OH)4, with a molecular weight of ≈258.16 g/mol (hydrated). 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 China Clay?
China Clay is also referred to as Kaolin, Kaolinite, EINECS 310-194-1 and EINECS 310-127-6.. 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 China Clay is supplied?
China Clay 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 concentration is China Clay supplied at?
China Clay is supplied at a concentration of 85-95% kaolinite. Concentration and assay are separate figures: the concentration describes the strength of the material as supplied, and the certificate of analysis issued for your consignment carries the measured values for that batch.
What does China Clay look like?
China Clay 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 China Clay used for?
Common applications include paper industry — Used as filler and coating pigment for brightness., ceramics manufacture — Provides smoothness and whiteness., paints and coatings — Acts as an opacifier and filler., rubber industry — Enhances reinforcement and mechanical properties., plastics — Used as an extender to improve strength. and cosmetics — Functions as an absorbent.. 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 China Clay?
China Clay 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 China Clay available in?
China Clay is supplied in Packaged in 50 kg bags. 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 HS code for China Clay?
China Clay is recorded against the EC number 310-194-1 / 310-127-6 and the HS customs code 2507.00. Quote this on customs and export paperwork; it is confirmed again on the commercial invoice for your specific consignment.
References
Technical information on this page was compiled from the following published sources. Safety and handling data always comes from the supplier’s own safety data sheet.
- 1.CDC - NIOSH Pocket Guide to Chemical Hazards - Kaolincdc.gov
- 2.ICSC 1144 - KAOLINinchem.org
- 3.Kaolin.bookhealthcouncil.nl
- 4.Kaoliniteen.wikipedia.org
- 5.Kaolinwebbook.nist.gov
- 6.KAOLINprecision.fda.gov
- 7.Kaolin clay HS Code 250700 — Tariffs & Examples (2026) | HS Code Atlashscodeatlas.com
- 8.Kaolin China Clay Powder HSN Code used for Export Import - Volzavolza.com
- 9.Bentonite, Kaolin and Selected Clay Minerals (EHC 231, 2005)inchem.org
- 10.Buy Kaolin: supplier, wholesaler, distributor | Brenntagbrenntag.com
- 11.China Clay Kaolin: Uses, Benefits, Properties & Industrial Applicationsreddit.com
- 12.See China? This is how you do it. That company at least labeled it nicely AND told me what it isreddit.com
- 13.Industrial Grade Kaolin Clay Supplier | Zillion Sawa Mineralsreddit.com
- 14.Kaolin - Finstar Industrial Chemicalsfinstarindustrialchemicals.co.ke
- 15.China Clay (Kaolin) in Kenya & East Africa - System Star Industrial Productssystemstarindustrial.com
- 16.Kenya Kaolin and other kaolinic clays, whether or not imports by country | 2024 | Datawits.worldbank.org
- 17.Kenya Kaolin Market (2021 - 2027) | Trends, Outlook & Forecast6wresearch.com
- 18.Calcined Kaolin Supplier in Kenya | Finstarfinstarindustrialchemicals.com
- 19.The Mineral Industry of Kenya and Uganda in 2000d9-wret.s3.us-west-2.amazonaws.com
- 20.FACULTY OF SCIENCE, ENGINEERING AND AGRICULTUREunivendspace.univen.ac.za
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