Complex Sodium Disilicate Granular CSDS Phosphorus - Free Detergent

Basic Information
Place of Origin: China
Brand Name: Konpoint
Certification: ISO9001
Minimum Order Quantity: Negotiation
Price: Negotiable
Packaging Details: 25kg bag or as per clients' requests
Delivery Time: 10 days
Payment Terms: T/T, Western Union
Supply Ability: 3000 Ton/Tons per Month
Product Name: CSDS Chemical Name:: Complex Sodium Disilicate
CAS No: 1344-09-8 Molecular Formula:: Na2O.2SiO2
Purity:: 99%min Application:: Detergent
High Light:

water softener additive for laundry


water softener powder for washing machine

Complex Sodium Disilicate Granular CSDS Phosphorus - Free Detergent For Laundry Powder


Appearance: white granular powder



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;

8), Anti-sediment;


Important notice:

1), Comparison of different water softeners:

    Synthetic Natural (also called PSM,PSMA)  
Full name Sodium Tripolyphosphate 4A Zeolite 4A Zeolite Active Poly Sodium Metasilicate Modified Sodium Disilicate
Appearance White fine powder White powder White fine free flowing powder White granular
Whiteness 90 min 95 min 80 min 85 min 90 min
Odor No odor No odor No odor No odor, but irritant to nose and eyes because the powder is too fine and too light No odor
Bulk density 650~950 g/L 550~ 700 1100~1300 480 ~ 600 g/L 480 ~ 550
Loading qty 25~26mt/20fcl 18mt/20fcl 27mt/20fcl 26mt/40HQ 15~ 16mt/20fcl
Main content Na5P3O10 94% min Na2O Na12AL12Si12O48·27H2O Na2O + SiO2 74% min Na2O2SiO2
Ca exchange N/A 295 min N/A 310 mg/g 320 mg/g
Mg exchange N/A 175 min N/A 300 mg/g N/A
pH 9.2 ~10.3 11 max 11.3 max 11 max 12.5 max
Identical index P2O5 content Al3+ content N/A Na2O + SiO2 content SiO2 content
Value of identical index 56.5% min 18% min N/A 74% min 20% min
Water insoluble 0.1% max N/A N/A 1% max N/A
Moisture 0.5% max 22% max loss on 800℃ 16% max loss on 600℃ N/A 5% max


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).



Contact Details

Phone Number : +8617088158168

WhatsApp : +008618236027371