Due to the environmental protection problems of STPP, detergent industry engineers from all over the world are working on finding a perfect replacement of STPP in detergent system.
Till now many products are developed for this purpose: NTA, Zeolite, SKS-6 and etc.
CSDS is designed to reach the similar performance with SKS-6.
1), Replacing STPP to make low phosphor and phosphors-free detergent powder;
2), Textile and dyeing industry;
3), Stabilizer of hydrogen peroxide;
4), Industrial cleaning auxiliary;
5), Porcelain industry.
1), Good capability to soften waterl;
2), Good performance in low-temperature water;
3), Environmental friendly;
4), Strong pH buffering ability;
5), Can be used in different processing methods of detergent powder;
6), Compatible with various surfactants;
7), Compatible with various bleaching agent;
1), Comparison of different water softeners:
(also called PSM,PSMA)
Active Poly Sodium Metasilicate
Modified Sodium Disilicate
White fine powder
White fine free flowing powder
No odor, but irritant to nose and eyes because the powder is too fine and too light
480 ~ 600 g/L
480 ~ 550
Na5P3O10 94% min
Na2O + SiO2 74% min
Na2O + SiO2 content
Value of identical index
22% max loss on 800℃
16% max loss on 600℃
2), CSDS can not completely replace STPP due to STPP’s features of:
- Enhancing the emulsifying and dispersing power, to increase the solubility of protein and dust which normally existing in the fabrics from daily life;
- Anti-caking agent for detergent powder. Since detergent powder is easily caking in exposed air, STPP can absorb the moisture and become Hexahydrate, which is dry and free flowing.
3), We normally list 2 years as the shelf life in our COA, the real shelf life is actually much longer than 2 years if it’s stocked in good condition (bags are sealed enough, away from direct sun-light, moisture and other incompatible chemical materials).