Brief introduction
 calcium carbonate is a important organic filler and pigment, it is widely used in rubber, plastic, tannage, paper, coating, paint, adhesive, building material and sealing material.
Type:common calcium carbonate, fine calcium carbonate, papermaking calcium carbonate, rubber calcium carbonate, cable material calcium carbonate, reactive calcium carbonate (dry, wet) and nanometer calcium carbonate
Index
1, molecular formula:CaCO3 2, molecular weight:100.09 3, crystal:spindle 4, appearance:white powder
Common calcium carbonate, fine calcium carbonate, rubber calcium carbonate, cable material calcium carbonate
[Uses]
it is widely used in rubber, plastic, tannage, coating, cable.
[Standard]HG/T2226-2000
[ Technical index]
| Index name |
Industry standard |
QB |
| Premium grade |
First grade |
Salable product |
common |
fine |
rubber & plastic |
cable material |
| calcium carbonate (CaCO3),%≥ |
98.0 |
97.0 |
97.0 |
98.0 |
98.0 |
98.0 |
98.0 |
| PH (10% suspension ) |
8.0-10.0 |
8.0-10.5 |
8.0-11.0 |
8.0-10.5 |
8.0-10.0 |
8.0-10.0 |
8.0-10.0 |
Volatile matter under
105°C, %≤ |
0.40 |
0.70 |
1.00 |
0.40 |
0.30 |
0.25 |
0.25 |
| Insoluble matter in Hcl,%≤ |
0.10 |
0.20 |
0.30 |
0.10 |
0.05 |
0.10 |
0.05 |
| Settling volume, ml/g ≥ |
2.8 |
2.6 |
2.4 |
2.4 |
2.6 |
2.8 |
2.8 |
| Residue on screen |
125μm screen, % ≤ |
0.005 |
0.010 |
0.015 |
0 |
0 |
0 |
0 |
| 45μm screen, % ≤ |
0.30 |
0.40 |
0.50 |
0.05 |
0.015 |
0.02 |
0.02 |
| Whiteness, degree ≥ |
90.0 |
90.0 |
|
95.0 |
96.0 |
96.0 |
95.0 |
| Alkalinity(as CaO),% ≤ |
|
|
|
0.05 |
0.03 |
0.01 |
0.01 |
Papermaking calcium carbonate
[Uses]
It is spindle-like white powder or paste product, it offers good microshape, it can improve printing capacity and penetration performance of paper.
[Standard]HG/T2226-2000
[ Technical index]
| Item |
QB |
| Physical index |
Shape |
spindle |
| Grainsize μm ≤ |
6.0 |
| degree degree ≥ |
95.0 |
| Settling volume ml/g 3hr ≥ |
9.8 |
| Settling degree 15min % ≥ |
65.0 |
| Residue on screen |
125μm % ≤ |
0 |
| 45μm % ≤ |
0.02 |
| Chemical index |
CaCO3 (as dry ) % ≥ |
98.5 |
| PH (10% suspension ) |
8.0-10.0 |
| Volatile matter under 105°C % ≤ |
0.30 |
| Insoluble matter in Hcl % ≤ |
0.60 |
| Free alkali (as CaO) % ≤ |
0.05 |
Industrial settling active(dry, wet) calcium carbonate
[Uses]
Taking coupling agent and stearic acid as reactive agent, it is made by drying method and wetting method. It can be used in plastic and rubber.
[Standard]HG/T2567-1994?
[ Technical index]
| Item |
Industrial standard |
QB |
| first grade |
Salable product |
| calcium carbonate (CaCO3),%≥ |
96.0 |
95.0 |
98.0 |
| PH (10% suspension ) |
8.0-10.5 |
8.0-11.0 |
8.0-10.0 |
| Volatile matter under 105°C, %≤ |
0.50 |
0.70 |
0.40 |
| Insoluble matter in Hcl,%≤ |
0.20 |
0.30 |
0.06 |
| Residue on screen |
125μm screen, % ≤ |
0.010 |
0.015 |
0 |
| 45μm screen, % ≤ |
0.30 |
0.40 |
0.05 |
| Whiteness, degree ≥ |
90.0 |
|
95.0 |
| Oil adsorption, g/100g |
70 |
80 |
70 |
| Active degree, % ≥ |
95 |
90 |
98 |
| Alkalinity(as CaO),% ≤ |
|
|
0.03 |
Packing and stroage
1, 25kg±0.25kg in polypropylene compound plastic woven bag
2, avoid insolation, rain, moisture, no mixed with acid
3, date and No, makred on packing and test label
Remark: our product quality meets or exceeds national standard, or you can provide realtive standard for us.
|
