| Customization: | Available |
|---|---|
| Certification: | CE, ISO |
| Application: | Cosmetic, Plastic, Rubber, Ceramic, Pharmaceutical |
|
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Industrial grade talc powder price without asbestos content
Talcum Powder is a unique natural mineral produce through verification & fine grinding. This product may be used in Paints, Cosmetic, Paper, Pharmaceuticals, Fertilizers etc.
Talc lubricity, fire resistance, acid resistance, insulation, high melting point, chemical inertness, good covering power and soft, good gloss, strong adsorption capacity, excellent physical and chemical properties, the crystal structure of talc is a layer, so it is easy to split into flake trend and special lubrication and if the Fe2O3 content is very high will reduce its insulation.
The main component of talc is hydrotalcite containing magnesium silicate, and the formula is Mg3 [Si4O10] (OH) 2. Talc belongs to monoclinic system. The crystal is false, six sides or diamond flakes, occasionally. Usually dense clumps of leaves, rays, and fibrous aggregates. Colorless or white, but with a small amount of impurities and has light green, light yellow, light brown or pale red; the cleavage plane is Pearl luster. Hardness 1, specific gravity 2.7 ~ 2.8.
Physical Analysis:
Color is snow white
Luster is dull to pearly or greasy
Transparency crystals are translucent and masses are opaque
Crystal system is mono-clinic 2/m
Hardness is 1.
Specific Gravity is 2.7 - 2.8
PLASTIC GRADE TALC POWDER
|
Technical specification |
Special grade |
First grade |
Up to standard |
|
|
Whiteness%≥ |
95 |
90 |
88 |
|
|
SiO2 %≥ |
61 |
58 |
55 |
|
|
MgO%≥ |
31 |
30 |
30 |
|
|
CaO%≤ |
0.45 |
1.00 |
1.50 |
|
|
Fe2O3 %≤ |
0.30 |
0.40 |
0.50 |
|
|
Al2O3 %≤ |
0.20 |
0.30 |
0.30 |
|
|
L.O.I. %≤ |
6.00 |
8.00 |
10.00 |
|
Product index
|
Inspection item |
Standard provisions |
Test results |
Result determination |
|
Character |
White or white, fine, no sand, powder, hand touch with soapy, micro gas, light. Insoluble in water, dilute hydrochloric acid, dilute sodium hydroxide solution |
Comply with the provisions |
Qualified |
|
Identify(1) |
Should comply with the provisions |
Comply with the provisions |
Qualified |
|
Identify(2) |
Should comply with the provisions |
Comply with the provisions |
Qualified |
|
Whiteness |
Superior product (90 medicinal) ≥90% First Grade (86 medicinal) ≥85% |
90.8% |
Qualified |
|
Fineness |
45μm Analysis Screening pass rate≥98.0% |
98.31% |
Qualified |
|
PH |
Litmus neutral |
Neutral |
Qualified |
|
Soluble in water |
≤0.1% |
0.94% |
Qualified |
|
Acid soluble matter |
≤2.00% |
1.80% |
Qualified |
|
Ferric salt |
Blue can not be displayed in a timely manner |
Not timely display blue |
Qualified |
|
Loss on ignition |
≤5.0%(800ºC) |
2.35% |
Qualified |
|
Heavy metal |
≤40 mg/kg |
≤40 mg/kg |
Qualified |
|
|
≤2 mg/kg |
≤2mg/kg |
Qualified |
|
Bacterial count |
≤500 cfu/g |
30 cfu/g |
Qualified |
|
Molds and yeasts |
≤100 cfu/g |
10 cfu/g |
Qualified |
|
Escherichia coli |
Not detectable |
Not detectable |
Qualified |
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