RTCP (Talc powder for Paints and Coatings)
| Specification | Premium | First-class | Qualified | |
| Whiteness | 92.0 | 90.0 | 88.0 | |
| Size: 45m passing rate | 99.0 | 98.0 | 97.0 | |
| Particle size distribution | < 20m | 95 | 80 | 70 |
| < 10m | 70 | 50 | 40 | |
| < 5m | 40 | 30 | 20 | |
| Moisture | 0.5?.0 | |||
| Oil Adsorption | 20.0?0.0 | 20.0?0.0 | 20.0?0.0 | |
| LOI(1000) | 7.00 | 8.00 | 28.00 | |
| Water soluble | 0.5 | 0.5 | 0.5 | |
| PH | 7.0?.0 | |||
RTPM (Talc powder for Paper making)
| Specification | Premium | First-class |
| Whiteness | 90.0 | 85.0 |
| Dust, mm2/g | 0.4 | 0.6 |
| CaCO3 | 2.5 | 3.0 |
| Fe2O3 | 0.8 | 1.0 |
| PH | 8.0?.0 | |
| Moisture | 0.5 | |
| LOI(800) | 6.00 | 8.00 |
| Abrasion (copper sieve), mg | 80.0 | 100.0 |
| Size, 45m passing rate | 98.0 | 98.0 |
| Oil Adsorption | 20.0?0.0 | |
RTP (Talc powder for Plastics)
| Specification | Premium | First-class | Qualified | |
| Whiteness | 93.0 | 90.0 | 88.0 | |
| Size, 45m passing rate | 99.0 | 98.0 | 95.0 | |
| Particle size distribution | < 20m | 80 | 72 | 60 |
| < 10m | 50 | 36 | 26 | |
| < 5m | 30 | 16 | 12 | |
| SiO2 | 61.0 | 58.0 | 55.0 | |
| MgO | 31.0 | 29.0 | 27.0 | |
| Fe2O3 | 0.50 | 1.00 | 1.50 | |
| Al2O3 | 1.00 | 2.00 | 3.00 | |
| CaO | 0.50 | 1.50 | 4.50 | |
| LOI(1000) | 6.00 | 8.00 | 9.00 | |
| Volume Density g/cm3 | Bulk | 0.45 | 0.55 | 0.65 |
| Compacted | 0.90 | 0.95 | 1.0 | |
| Moisture | 0.5 | 1.0 | ||
RTR (Talc powder for Rubber)
| Specification | Premium | First-class | Qualified |
| Size, 75m passing rate | 99.9 | 99.5 | 99.0 |
| Moisture | 0.5 | 0.7 | 1.0 |
| LOI(1000) | 7.00 | 9.00 | 24.00 |
| PH | 8.0?0.0 | ||
| Acid Soluble | 6.0 | 15.0 | 20.0 |
| Fe2O3 | 1.00 | 2.00 | 3.00 |
| Copper Soluble | 0.005 | ||
| Manganese Soluble | 0.05 | ||
RTC (Talc powder for Electric Cable)
| Specification | Premium | First-class | Qualified |
| Non Acid-soluble | 90.0 | 87.0 | 85.0 |
| Fe2O3 | 0.20 | 0.50 | 1.00 |
| LOI(1000) | 6.00 | 8.00 | 10.00 |
| Magnet separates | 0.04 | 0.07 | 0.10 |
| Moisture | 0.5 | 1.0 | |
| Size, passing rate | 45m?8.0 | 75m?8.0 | |
RTCE (Talc powder for Ceramics)
| Specification | Premium | First-class | Qualified |
| Whiteness | 90.0 | 88.0 | 85.0 |
| SiO2 | 61.0 | 60.0 | 58.0 |
| MgO | 31.0 | 30.0 | 29.0 |
| Al2O3 | 1.00 | 2.00 | 4.00 |
| CaO | 0.50 | 1.00 | 1.50 |
| Fe2O3 | 0.30 | 1.0 | 1.5 |
| K2O & Na2O | 0.40 | 0.40 | 0.50 |
| LOI(1000) | 6.00 | 7.00 | 8.00 |
| CaO | 1.00 | ||
| Size, 45m passing rate | 98.0 | ||
RTRO (Talc powder for Roofing)
| Specification | First-class | Qualified |
| Whiteness | 90.0 | 88.0 |
| Density g/cm3 | 3.00 | - |
| SiO2 & MgO | 77.0 | 60.0 |
| LOI(1000) | 22.00 | 25.00 |
| Size, 75m passing rate | 98.0 | 95.0 |
| Moisture | 0.5 | 1.0 |
| PH | 10.0 | - |
Notes: 1) Owing to the differences of conditions at the customer&##39;s end, talc
powder for the above applications can be customized upon customer&##39;s request.
2) The above specifications of Ruitong talc powder complies or superior
to State Standards.
RTCO (Talc powder for Cosmetics)
| Specification | Grade 1 | Grade 2 | Grade 3 |
| Whiteness | 92.0 | 90.0 | 88.0 |
| Moisture | 0.5 | 0.5 | 1.0 |
| Salts of Iron | Shows no instant blue on litmus paper | ||
| Water Solubles | 0.1 | 0.1 | 0.1 |
| Acid Solubles | 1.5 | 2.0 | 4.0 |
| Size，passing rate | 45m 98.0% 75m 98.0% | ||
| LOI (1000) | 5.50 | 6.50 | 7.00 |
| As | 3 * 10-4 | ||
| Pb | 20 * 10-4 | ||
| Bacteria&##39;(number)/g | Total 500; fungus 100; Zero pathogenic bacteria1) | ||
| Asbestos | Nil under X-ray diffraction. | ||
Note: 1)Pathogenic bacteria mainly refers to Bacillus coli, staphylococci, bacillus
aeruginosus.
RTFP (Talc powder for Food & Pharmaceuticals)
| Specification | Premium | First-class | Qualified |
| Appearance | Odor free, no flavor, zero grit, lubricant feeling. | ||
| Whiteness | 90.0 | 85.0 | 80.0 |
| Moisture | 0.5 | 0.5 | 1.0 |
| Fungus, (number)/g | Total 500; fungus 100; Zero pathogenic bacteria1) | ||
| LOI (1000? | 6.00 | 6.50 | 6.50 |
| Solubles in acid | 1.5 | 1.5 | 1.5 |
| Solubles in water | 0.1 | 0.1 | 0.1 |
| PH | Neutral reaction on litmus paper. | ||
| Salts of Iron | No instant blue on litmus paper | ||
| Size, passing rate | 45m 98.0 75m 98.0 | ||
| As | 3 * 10-4 | ||
| Pb | 10 * 10-4 | ||
| Heavy Metal | 40 * 10-4 | ||
Note: 1)Pathogenic bacteria mainly refers to Bacillus coli, staphylococci, bacillus
aeruginosus.
Typical Chemical & Physical data of MTP (Micronized talc powder)
| Series | SiO2 (%) | CaO (%) | Al2O3 (%) | Fe2O3 (%) | MgO (%) | Whiteness (%) |
| HBK | 61 | 0.15 | 0.4 | 0.2 | 30 | 93 |
| QK | 60 | 0.3 | 0.4 | 0.2 | 30 | 91 |
| BK | 61 | 0.6 | 0.4 | 0.2 | 30 | 96 |
| 60 | 0.5 | 0.4 | 0.2 | 30 | 95 | |
| FK | 61 | 0.6 | 0.4 | 0.2 | 30 | 95 |
| 60 | 0.5 | 0.4 | 0.2 | 30 | 92 | |
| QBFK | 59 | 0.7 | 0.5 | 0.23 | 30 | 91 |
Note: For Micro-talcum powder, the particle size normally was processed to
800~2000mesh.
Talc Crystalline Structure
Talc Powder
Liaoning Talcum Powder Bag 35
LNP talc 35
HCP talc 30
Haicheng Talcum Powder 30
container loaded with talc powder
talc powder in jumbo bags waiting for shipment
talc powder loading at Bayuquan Port
scanning electron micrograph of talc particle
