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Ceramic Clay, 1332-58-7

Ceramic Clay, 1332-58-7

CERAMIC CLAYS

1. GENERAL INFORMATION AND CHEMICAL IDENTITY

Parameter Description
Product Name Ceramic Clay
CAS Number 1332-58-7 (general clay minerals)
Definition Naturally abundant, fine-grained (≤0.002 mm) mineral group with high plasticity
Main Groups Illite, Kaolinite, Montmorillonite, Other clays
Natural Appearance Fine-grained, generally dark firing color
Color Light gray, cream, brown (depending on impurities)
Mineral Class Silicate / Clay mineral

CHEMICAL DESCRIPTION:

Ceramic Clays are naturally abundant, fine-grained (≤0.002 mm) mineral groups with high plasticity. They consist mainly of illite, kaolinite, and montmorillonite groups. In the ceramic industry, they are used in body and glaze formulations due to their shaping properties. In Turkey, they are found in Istanbul (Ömerli, Beykoz, Şile) regions, but production is restricted due to water basin regulations.

2. CHEMICAL AND MINERALOGICAL CONTENT

Component Description
Main Minerals Limestone, silica, mica, iron oxide
Purity Pure clay is rare; generally contains impurities
Main Clay Groups Illite, Kaolinite, Montmorillonite
Iron Oxide Content Determines firing color (high iron → dark color)
Organic Matter Affects plasticity and firing color

Occurrence in Turkey: Istanbul (Ömerli, Beykoz, Şile) – production restricted due to water basins.

3. PHYSICAL PROPERTIES

Property Value / Description
Particle Size ≤ 0.002 mm
Plasticity High, provides shaping ease
Water Retention Increases with plasticity
Moisture (Quarry) Summer: 14-18%, Winter: 22-28%
Whiteness Degree Most important quality factor
Water Absorption Rate Should be low
Shrinkage Percentage Should be controlled
Green/Dry Strength High strength preferred
Casting Properties Critical for homogeneous application
Firing Color Light color (white, cream) preferred; dark color indicates low quality

4. CLAY GROUPS AND PROPERTIES

Clay Group Properties Application Area
Kaolinite Low plasticity, high whiteness, low iron Porcelain, whiteware, paper
Illite Medium plasticity, medium whiteness Ceramic bodies, bricks
Montmorillonite High plasticity, high water retention Specialty ceramics, drilling muds
Blended Clays Combined properties Ceramic formulations

5. CERAMIC INDUSTRY APPLICATIONS

Application Description
Body Formulations Used at ~35% ratio; provides shaping properties
Glaze Formulations Prevents sedimentation, provides homogeneity
Sanitaryware Processed "pasta clays" are preferred
Granite, Porcelain, Technical Ceramics Require high purity and whiteness
Casting Bodies Critical for homogeneous casting

6. QUALITY CRITERIA

Criterion Description
Whiteness Degree Most important quality factor
Plasticity Ease of shaping
Water Absorption Rate Should be low
Firing Color Light color preferred
Iron Oxide Content Should be low (< 1%)
Organic Matter Should be controlled
Shrinkage Rate Controlled and predictable
Strength Green and dry strength should be high

7. STATUS IN TURKEY

Parameter Information
Reserve Regions Istanbul (Ömerli, Beykoz, Şile)
Problem Production restricted / will be closed due to water basins
Quality Turkish clays have limited physical properties
Firing Color Dark firing color (high iron content)
Import Sources Ukraine, Bulgaria, Portugal, Spain
Export Value Ceramic sector exports 1 billion USD annually
Solution Production supported by imported clays

8. HANDLING AND STORAGE

Parameter Information
Storage Conditions Dry, enclosed area; protect from rain and moisture
Storage Temperature Room temperature
Moisture Effect High water retention increases storage and transport costs
Shelf Life Unlimited (under proper storage)
Packaging Bulk, bags, Big Bags
Processing Note Negatively affects agitation in wet grinding mills; part of clay is added later

Personal Protective Equipment:

  • Dust mask (P2 or N95)

  • Safety goggles

  • Protective gloves

  • Protective clothing

9. SAFETY AND TOXICOLOGY

Parameter Value
GHS Classification Not classified (not hazardous)
Toxicity Low
Dust Inhalation Dust inhalation may cause respiratory tract irritation
Skin Contact May cause mild irritation
Eye Contact May cause mild irritation
Carcinogenicity Not classified
Ecotoxicity Low
Special Risk May contain crystalline silica (respiratory risk)

SPECIAL ADVANTAGES:

  • Natural mineral, low toxicity

  • Environmentally friendly

  • Recyclable

10. ENVIRONMENTAL INFORMATION

Parameter Information
Ecotoxicity Low
Bioaccumulation Not expected
Environmental Impact Production restricted in water basins and residential areas
Waste Management Disposal according to local regulations
Recycling Possible (used ceramics)

11. TRANSPORT INFORMATION

Parameter Information
UN Number Not classified as dangerous for transport
Hazard Class Not classified
Packing Group Not applicable
Proper Shipping Name Ceramic Clay
Marine Pollutant No
ADR/RID Label None

12. SUMMARY AND CRITICAL WARNINGS

SUMMARY:

Ceramic Clays are naturally abundant, fine-grained (≤0.002 mm) mineral groups with high plasticity. They consist mainly of illite, kaolinite, and montmorillonite groups. In the ceramic industry, they are used in body and glaze formulations due to their shaping properties.

Key Properties:

Property Value
Particle Size ≤ 0.002 mm
Plasticity High
Moisture (Summer) 14-18%
Moisture (Winter) 22-28%
CAS No 1332-58-7
Main Groups Illite, Kaolinite, Montmorillonite

CRITICAL WARNINGS:

  1. Quality Determinant: Whiteness degree is the most important quality factor for ceramic clay. Light firing color is preferred.

  2. Status in Turkey: Istanbul reserves will be closed for production due to water basins. Turkish clays have dark firing color and low purity; imported clays (Ukraine, Bulgaria, Portugal, Spain) are used.

  3. Ceramic Sector: Clays are critical raw materials for the sector with 1 billion USD annual export value.

  4. Processing Difficulty: Negatively affects agitation in wet grinding mills; therefore, part of the clay is added later.

  5. Transport Cost: High water retention increases storage and transport costs.

  6. Plasticity: High plasticity provides shaping ease but affects water retention and drying time.

Important Disclaimer: This Technical Data Sheet (TDS) is for informational purposes only. The information provided is based on available data and is believed to be accurate. However, the user is solely responsible for determining the suitability of the product for their specific applications and for complying with all applicable regulations and safety requirements. For complete safety, handling, storage, and regulatory compliance information, always refer to the official Safety Data Sheet (SDS/MSDS) provided by the manufacturer/supplier. All local, national, and international regulations must be followed when working with Ceramic Clays. Testing prior to use in body formulations is recommended.

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