Enhanced TDS
Identification & Functionality
- Chemical Family
- Function
- Flux, Low Shrink Additive
- Industrial Additives Functions
- Product Code
- MITM13792
- Technologies
- Product Families
Features & Benefits
- CASE Ingredients Features
- Industrial Additives Features
- Labeling Claims
- Materials Features
Applications & Uses
- Adhesive & Sealant End Applications
- Compatible Polymers & Resins
- Industrial Additives End Use
- Markets
- Applications
- Product Uses
- CIMTALC® 3 also used to produce low expansion ceramics, for example thermal shock resistant stoneware bodies. In these, it acts as a low expansion flux that reduces body expansion by converting available quartz mineral, mainly in kaolin, to silicates of magnesia. Cordierite bodies used in kiln furniture and flameware (an a host of other applications e.g. catalytic converters) employ a high percentage of Cimbar talc and extend this concept so that all free quartz is used up.
- CIMTALC® 3 itself it is a refractory powder; yet in amounts of only 1-3% in stoneware or porcelain bodies it can drastically improve vitrification! Yet adding these same low percentages to some zero-porosity highly vitreous bodies does cause them to warp, blister or over fire. Cone 06-04 ceramic slips containing up to 60% talc can be fired to cone 6 without melting or even deforming (50:50 mixes can even go to cone 10).
- CIMTALC® 3 is a curious glaze material also. At middle temperature raw talc is refractory, its presence tends to create opaque and matte surfaces, yet if supplied in a frit it can create wonderfully transparent glossy glazes. At cone 10 it is a powerful flux but also can be used in combination with calcium carbonate to create very tactile magnesia matte glazes (the MgO forms magnesium silicate crystals on cooling to give both opacity and a matte silky surface). This being said, where transparency is needed it is generally best to source MgO from a frit (since talc loses its water of hydration quite late in the firing, after melt of most glazes has begun).
Properties
- Physical Form
Packaging & Availability
- Packaging Type
Principal Information
- Group Principal Number
- S001785
- Principal
Other
- Appearance (SDS)
- White, tan or light grey powder
- Explosive Nature (SDS)
- Not explosive
- Flammable Nature (SDS)
- Not flammable
- Insoluble in (SDS)
- Water
- Item Number
- Odor (SDS)
- Odorless
- Oxidizing Properties (SDS)
- Non oxidizing
- Temperature Control
- No
- USA/DOT UN Number
- Not Applicable
- Chemical Properties
Value Units Test Method / Conditions Loss on Ignition 10.0 - pH 8.7 - - Material Composition
Value Units Test Method / Conditions Calcium Content max. 3.0 - Magnesium Concentration 28.0 - Silicon Dioxide Content 59.0 - - Optical Properties
Value Units Test Method / Conditions Color Scale min. 96.0 CIELAB CIELAB Dry - Physical Properties
Value Units Test Method / Conditions Bulk Density 45.0 - Tapped Bulk Density 16.0 - Median Particle Size 3.0 µm µm D50 Moisture Content 0.3 % % Oil Absorption 32.0 g/100g g/100g Sieve Fractionation (Through) 100.0 % % -325 Mesh Specific Gravity 2.78 - - SDS Physical and Chemical Properties
Value Units Test Method / Conditions Decomposition Temperature (SDS) min. 1000.0 °C °C Melting Point (SDS) min. 1300.0 °C °C Relative Density (SDS) 2.58-2.83 - pH (SDS) 8.5-9.5 - 10% Solution - Shelf Life & Stability
Value Units Test Method / Conditions Shelf Life 0.0 -