Talc is a hydrous magnesium silicate mineral with a chemical composition of Mg3Si4O10(OH)2. It is the softest known mineral and is assigned a hardness of 1 on the Mohs Hardness scale.
Talc is very lamellar, hydrophobic and chemically inert. It is odorless, insoluble in water and in weak acids and alkalis, but is slightly soluble in dilute mineral acids. Its color ranges from white to grey or green and it has a distinctly greasy feel.
Distinctive Feature Stability: hydrophobic and chemically inert, not soluble in water. Low Mohs Hardness: softest mineral on earth, slippery feel, low abrasive. Lamellarity: barrier property, dimensional stability. Organophilic: affinity for certain organic chemicals and absorption properties are key in a number of applications.
Our advantage
1. High whiteness, high purity, high lamellarity, low heavy metal content, asbestos-free.
2. Large particle size scope from 325 mesh to 3000 mesh and with many types suit for different needs.
3. Product meets cosmetics grade and medicine-food grade.
Application
It is mainly used as a filler, moisturizer and anti-caking agent in cosmetics. It is often used in powder cosmetics such as powder cakes, eye shadow and talcum powder, face creams and sunscreen products to improve the skin feeling of cosmetics.
Attentions
Keep out of reach of children. Do not take internally. Do not us on broken skin. Keep in a cool dry place to prevent moisture absorption.
Avoid contact with eyes. If you have epilepsy, high blood pressure or any other specific medial conditions consult a doctor before use. If pregnant or breastfeeding, please consult your doctor before use. If irritation occurs, discontinue use.
Storage and Transport
It should be stored in a dry and ventilative warehouse, kept away from heat and moisture during transportation, unloaded with care so as to avoid damage. Furthermore, it must be stored separately from poisonous substances.
② Medicine-food Talc powder
Used in Medicine tablet, sugar coating, prickly heat powder and Chinese medicine prescription, food additive, isolation agent,etc.
Specification
Physic-chemical properties
High quality product
Class 1 product
Qualified product
Whiteness(%)
≥90
≥88
≥85
Fineness,325 mesh (45μm)
≥98
Moisture content(%)
≤0.5
Iron salt
Does not display blue color instantly
Soluble substance in water (%)
≤0.1
Soluble substance in acid (%)
≤3.0
Loss of ignition (1000°C)(%)
≤6.5
As
≤3×10-4
Pb
≤20×10-4
Mount of fungus,one/g
<500
Moulds,one/g
<100
③ Painting and coating Talc powder
Used for white pigment and all kinds of water-based, oil-based, resin industrial coatings, primers, protective paint, etc.
Specification
Physic-chemical properties
High quality product
Class 1 product
Qualified product
Whiteness(%)
≥85%
≥83%
≥81%
Loss of ignition (1000°C)
≤6.0%
≤12.0%
≤28.0%
Fineness,325 mesh (45μm)
≥98%
Moisture contents (%)
≤0.5%
Absorbent oil volumes
20%-50%
PH value
7-9
④ Rubber Talc powder
In the automobile industry, the heat resistance of rubber can be improved by replacing part of carbon black with talcum powder. In the door and window sealing strip such products, talc can reduce the influence of climate conditions on rubber performance and damage.
Specification
Physic-chemical properties
600mesh
800mesh
1250mesh
2000mesh
2500mesh
3000meshs
Whiteness(%)
≥90
≥92
≥94
≥94
≥94
≥94
Grain distribution (D98)
20μm
15μm
10μm
6μm
5μm
4μm
The residual by 325 mesh (%)
≤0.1
≤0.01
-
-
-
-
Absorbent oil volume
≤30-50
Density of volume g/cm3
0.3-0.35
0.28-0.30
0.17-0.20
0.15-0.17
0.13-0.15
0.11-0.13
Moisture content(%)
≤0.5
PH value
7-9
Loss of ignition(1000°C)(%)
≤8
Wet whiteness (%)
≥38
≥48
≥50
≥55
-
-
Average grain diameter(%)
12.0
8.0
5.5
3.5
3.0
2.5
The biggest grain(%)
30.0
20.0
13.0
9.0
8.0
7.0
⑤ Paper-making Talc powder
Improve packing retention and transparency, smoothness and printing suitability of paper, and make paper with high ink absorption. Talc powder and sizing agent have a good binding relationship, so it can effectively improve sizing agent retention, and reduce the absorption of paper, prevent printing ink infiltration paper.
Specification
Physic-chemical properties
High quality product
Class 1 product
Class 2 product
Qualified product
Whiteness(%)
≥90
≥85
≥83
≥81
Dust(mm2/g)
≤0.4
≤0.8
≤1.0
≤1.2
CaCO3(%)
≤3.0
≤4.0
≤6.0
≤8.0
Loss of ignition(800°C)(%)
≤7.0
≤8.0
≤10.0
≤12.0
Fineness,325 mesh(45μm)
≥98
PH value
7-9
Moisture contents(%)
≤0.5
⑥ Plastic Talc powder
The addition of talc powder changes a variety of properties of plastics, such as surface hardness, tensile strength, bending modulus, molding shrinkage, impact strength, thermal variation temperature, product dimensional stability, etc.
Specification
Physic-chemical properties
600mesh
800mesh
1250mesh
2000mesh
2500mesh
3000meshs
Whiteness(%)
≥90
≥92
≥94
≥94
≥94
≥94
Grain distribution (D98)
20μm
15μm
10μm
6μm
5μm
4μm
The residual by 325 mesh (%)
≤0.1
≤0.01
-
-
-
-
Absorbent oil volume
≤30-50
Density of volume g/cm3
0.3-0.35
0.28-0.30
0.17-0.20
0.15-0.17
0.13-0.15
0.11-0.13
Moisture content(%)
≤0.5
PH value
7-9
Loss of ignition(1000°C)(%)
≤8
Wet whiteness (%)
≥38
≥48
≥50
≥55
-
-
Average grain diameter(%)
12.0
8.0
5.5
3.5
3.0
2.5
The biggest grain(%)
30.0
20.0
13.0
9.0
8.0
7.0
⑦ Ceramic Talc powder
Different proportions and different proportions of ingredients can make ceramics show different colors, but also make the ceramics calcined with uniform density, smooth surface and good gloss.
Specification
Physic-chemical properties
600mesh
800mesh
1250mesh
2000mesh
2500mesh
3000meshs
Whiteness(%)
≥90
≥92
≥94
≥94
≥94
≥94
Grain distribution (D98)
20μm
15μm
10μm
6μm
5μm
4μm
The residual by 325 mesh (%)
≤0.1
≤0.01
-
-
-
-
Absorbent oil volume
≤30-50
Density of volume g/cm3
0.3-0.35
0.28-0.30
0.17-0.20
0.15-0.17
0.13-0.15
0.11-0.13
Moisture content(%)
≤0.5
PH value
7-9
Loss of ignition(1000°C)(%)
≤8
Wet whiteness (%)
≥38
≥48
≥50
≥55
-
-
Average grain diameter(%)
12.0
8.0
5.5
3.5
3.0
2.5
The biggest grain(%)
30.0
20.0
13.0
9.0
8.0
7.0
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