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About Talc
Today world is globalized and manufacturing companies & producers of consumer goods to industrial products, such as paints, plastics, ceramics, or cosmetics.
Talc is a mineral that is mined in many different countries of the world & being a natural product its composition varies between occurrences. Moreover, there is a great number of ways to process talc during micronization. Thus, differences in application are significant both by virtue of mineralogy and grinding. We believe that offering only specialized services such as product applications to Polymer and coatings companies. In a way that preserves the talc splat structure and ensures a constant particle distribution.
Today world is globalized and manufacturing companies & producers of consumer goods to industrial products, such as paints, plastics, ceramics, or cosmetics.
Talc is a mineral that is mined in many different countries of the world & being a natural product its composition varies between occurrences. Moreover, there is a great number of ways to process talc during micronization. Thus, differences in application are significant both by virtue of mineralogy and grinding. We believe that offering only specialized services such as product applications to Polymer and coatings companies. In a way that preserves the talc splat structure and ensures a constant particle distribution.
Z-TALC products are made from material occurring at Northern part of India. The raw material is ground on three stages and processed thereafter choosing applications and product characteristics.Consequently Z- Talc products are the very quality talc raw material available for our customers with guaranteed quality and service.
Types of Talc
• The term "talc" does not express the diversity of this mineral in nature. On the one hand, "talc" is a pure magnesium-silicate, on the other hand. It is a general term for a polynomial rock.
• Pure talc has the chemical formula: Mg3 Si4O10(OH)2. The theoretical chemical analysis shows the following values.
• Chlorite has a lamellar structure as well, with similar properties as pure talc in most of the typical applications. The theoretical formula is (Mg Al.Fe)12 (Si,Al)8O20 (OH)16. The typical colour is green (chloros = light green ) to opaque.
• At the chlorite talc lattice, Mg²+ is substituted by Al³+ or Fe³+. To compensate the different loadings of the Al³ or Fe³+ - ions compared to the Mg²+-ion an additional Brucite-layer is added at he chlorite modification. The Fe³± ion of a chlorite talc is mainly linked to the chlorite- layer, where a part of the Al³+ is substituted. The layers are electro-neutral. Therefore, also combinations of talc and chlorite-type are possible and are regularly found in particle.
• Steatite is a fairly compact modification or talc. Soapstone describes impure black talcs.
• A talc crystal is like a microscopic booklet in which each page is composed of a tin layer of Mg-hydroxide sandwiched between two layers of tetrahedral silica.
Pure talc is characterized by its hydrophobic properties, its slipperiness of surface, and the lowest Moh's hardness of 1. The softness of talc is due to the fact that the layers can easily be shifted and separated. The smooth, hydrophobic, water repellent surface slide against one another, giving talc its slippery and fatly feel. Commercial talc grades are harder due to impurities.
• The term "talc" does not express the diversity of this mineral in nature. On the one hand, "talc" is a pure magnesium-silicate, on the other hand. It is a general term for a polynomial rock.
• Pure talc has the chemical formula: Mg3 Si4O10(OH)2. The theoretical chemical analysis shows the following values.
- Sio2 - 6.35%
- Mgo - 31.7%
- H2O - 4.8%
• Chlorite has a lamellar structure as well, with similar properties as pure talc in most of the typical applications. The theoretical formula is (Mg Al.Fe)12 (Si,Al)8O20 (OH)16. The typical colour is green (chloros = light green ) to opaque.
• At the chlorite talc lattice, Mg²+ is substituted by Al³+ or Fe³+. To compensate the different loadings of the Al³ or Fe³+ - ions compared to the Mg²+-ion an additional Brucite-layer is added at he chlorite modification. The Fe³± ion of a chlorite talc is mainly linked to the chlorite- layer, where a part of the Al³+ is substituted. The layers are electro-neutral. Therefore, also combinations of talc and chlorite-type are possible and are regularly found in particle.
• Steatite is a fairly compact modification or talc. Soapstone describes impure black talcs.
• A talc crystal is like a microscopic booklet in which each page is composed of a tin layer of Mg-hydroxide sandwiched between two layers of tetrahedral silica.
Pure talc is characterized by its hydrophobic properties, its slipperiness of surface, and the lowest Moh's hardness of 1. The softness of talc is due to the fact that the layers can easily be shifted and separated. The smooth, hydrophobic, water repellent surface slide against one another, giving talc its slippery and fatly feel. Commercial talc grades are harder due to impurities.
Other by-minerals found are as follows:
| Carbonates | Magnesite | Finland, Italy, Canada,China |
| Dolomite | France, Austria, Italy,USA, China,. | |
| Canada | ||
| Calcite | India | |
| Mica, Serizite | Austria, South Africa | |
| Quartz | Austria, France, China,Australia | |
| Serpentine | Canada, China | |
| Tremolite | USA, China, Sweden |
• Part from the mineralogy, talc and chlorite deposits are classified by brightness and their aspect ratio. The lamellar talc is the most common modification (e.g. Haicheng & Guangxi (China). Jaipur (India), Mount Seabrook (Australia), Luzenac (France), Pinerlo (Italy ). The compactly structured talc very rarely occurs in Europe (Germany, Spain), the main deposit is Australia. This micro-crystalline type of talc is mainly used for electroceramics and paper.
• Crude talc colors are grey to green and pink, rarely white. Most European and north American talc deposits are of low and medium brightness. White talc deposits of significant dimension can be found in Asia and Australia.
• Pure talc remains unaltered in the presence of chemical regents.Carbonate and chlorite containing types have a higher solubility in acids.
• Hi Talc products are pure minerals with very low levels of impurities. The lamellarity of the mineral is distinct. The colour is slightly green as a crude ore. If ground, the powder becomes very bright
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