PRODUCT IDENTIFICATIONComplex Sodium Disilicate (CSDS)
- CSDS
- full name of CSDS: Complex Sodium Disilicate
- molecular structure: Na2O.2SiO2
- types: as per different producing technologies of detergent powder, we develop two types of CSDS.
Type one |
Type two |
Appearance: white, fine powder |
Appearance: white, free flowing particle |
Preferable technology: added after high-tower spraying |
Preferable technology: added before high-tower spraying |
Characteristic: soluble in water very easily and quickly |
Characteristic: free flowing |
Specification:
| ITEM |
INDEX |
TEST RESULT |
Calcium exchange capacity |
﹦400mgCaCO3/gCSDS: |
451.06 |
Humidity: |
﹤﹦5% |
2.5 |
PH value: |
﹤﹦12 |
11.27 |
SiO2 |
﹥﹦20% |
23.08 |
Whiteness: |
﹥﹦80% |
87.99 |
Solubility: |
soluble |
soluble |
Visual specific weight: |
0.25-1 |
|
- Packing: 40kgs in plastic woven bag with inner plastic film bag
- One container load: type one—17 tons in 20ft container
type two—26 tons in 40HQ container
- APPLICATION
CSDS is widely used as STPP Substitute in detergent powder making such as concentrate detergent powder,
Ordinary detergent powder,
Phosphorus-free washing powder,
Low phosphorus detergent powder,
Metal-washing powder.
These detergent powders all can be washed by hand or washing machine.
It is mainly applied in high-tower spray dried technology.
- COMP ARISON WITH OTHER DETERGENT BUILDERS
- Chart one: comparison of major detergent builders
|
STPP |
4A ZEOLITE |
SKS-6 |
CSDS |
Environment protection |
With phosphorus |
Phosphorus free |
Phosphorus Free |
Phosphorus Free |
Solubility |
Soluble |
Insoluble |
Soluble |
Soluble |
Pollution |
Sewage |
Mud |
Sew age |
sewage |
- Chart 2: phosphorus free builder function comparison
|
4A ZEOLITE |
SKS-6 |
CSDS |
Ca exchange ability mgCaCo3/g |
285 |
300(appx.) |
﹥﹦400 |
Acidity proof ability MI/0.5mol Hel |
12 |
128 |
135 |
Soften water |
Lon exchange |
Lon exchange |
Lon exchange |
Treatment |
|
Chemical reaction forming precipitates |
Chemical reaction forming precipitates |
Solubility |
Insoluble |
fully soluble |
Full soluble |
Pollution |
More mud |
Sewage |
sewage |
Conclusion:
- CSDS is the best in current phosphorus-free detergent builders, the function is almost same as STPP. It is the best replacement of STPP at present
- CSDS is completely friendly to each while STPP caused serious pollution.
- CSDS has an excellent solubility in water, even cold water, better than STPP.
- The price of CSDS is much lower than that of STPP
- CSDS can be used same as STPP in producing process, without any change in equipment.
CSDS is the top cost performance non-phosphorus detergent which is widely used in leather washing and metal cleaning. It is based on national patent (the patent No:97107704.5) with exceeded capability.
The project has been completed and 50,000 tons per year production line.
CSDS reduce the phosphor pollution while driving entironment protection.
CSDS mainly used for washing powder, it accounts for it accounts for about 40% of the weight.
The global peolple need washing powder totally 15,000,000 tons, 50% by the use of sodium silicate compound calculated to be 3,000,000 tons in the second compound sodium silicate. In terms of per domestic use in washing powder to 1.5Kg calculated it would take a sodium silicate compound 720,000 tons.
Sodium Disilicate is included in the "1998 state-level Spark Program", "1999 state-level Torch Program" and "light of the strategic plan." by State Science and Technology.
