CSDS 95% Complex Sodium Di-silicate for Detergent Powder

• CAS No.: 1344-09-8
• Formula: Na2O.2SiO2
• EINECS: 215-687-4
• Certification: ISO
• Purity: 95%
• Type: Sodium Silicate
• Model NO.: 22001
• Appearance: Powder
• Grade Standard: Industrial Grade
• Application: Replacing STPP to make detergent powder
• Molecular weight: 182
• Ca2+ exchange capacity (CaCO3 mg/g): 550 min
• Mg2+ exchange capacity (MgCO3 mg/g): 100 min
• SiO2 content: 25% min
• Shelf Life: 24 months
• Transport Package: PP woven bags with PE liner
• Specification: 25kg / 650kg / 800kg
• Trademark: RAWCHEM
• Origin: China
• HS Code: 3824999999
• Production Capacity: 50000

Product Description

Product Parameters

Appearance: white granular powder

Characteristic:
1. Good capability to soften water
2. Good performance in low-temperature water
3. Environmental friendly Strong pH buffering ability
4. Can be used in different processing methods of detergent powder
5. Compatible with various surfactants
6. Compatible with various bleaching agent
7. Anti-sediment

Main indexes:

Index	Granular	Fine
Solid content by wt %	95 min
Ca^2+ exchange capacity (CaCO3) (mg/g)	550 min
Mg^2+ exchange capacity (MgCO3) (mg/g)	100 min
SiO2 by wt %	25 min
Na2O + SiO2 by wt %	50 min
pH value (25ºC, 1% solution)	12.5 max
Whiteness by wt %	85 min
Moisture by wt %	5 max
Water insoluble by wt %	1.5 max
Bulk density by g/cm^3	0.35~0.45	0.48~0.60

Granulometry (As S by wt %): 

index	Granular	Fine
S > 50 mesh	18~25	0~5
80 < S < 50 mesh	30~40	18~27
80 < S < 100 mesh	18~25	40~50
S < 100 mesh	25 max	25 min

 

Detailed Photos

 

Application

1. Detergent industry
2. Textile and dyeing industry
3. Industrial cleaning auxiliary
4. Porcelain industry

Function in detergent system
To replace STPP in detergent formulation, with lower price and no phosphors pollution to water system

Important Notice

1. To replace STPP, meanwhile solve the Zeolite's disadvantages, we are now producing silicates series products: MSD and APSM, below is the comparison of the main indexes of STPP, Zeolite, APSM and MSD/CSDS: 

Index	STPP	ZEOLITE		APSM	MSD
		Synthetic	Natural	(also called PSM,PSMA)	(also called CSDS)
Full name	Sodium Tripolyphosphate	4A Zeolite	Natural Zeolite	Activated Poly Sodium Metasilicate	Modified Sodium Disilicate
Appearance	White fine powder	White powder		White granular powder
Whiteness	90 min	95 min	80 min	85 min	85 min
Odor	No odor	No odor	No odor	No odor, but irritant to nose and eye
Bulk denstiy	650~950 g/L	550~700 g/L	1100~1300 g/L	350~600 g/L	480~600 g/L
Loading qty	25~26mt/20fcl	20mt/20fcl	27mt/20fcl	27mt/40HQ
Effect	Best	Normal	Bad	good
Main content	Na5P3O10 94% min	Na2O.Al2O3	N/A	Na2O + SiO2 74% min	Na2O2SiO2
Ca exchange	158 mg/g	295mg/g	N/A	320 mg/g	550 mg/g
Mg exchange	N/A	175 min	N/A	330 mg/g	N/A
pH	9.2~10.3	11.0 max	11.3 max	11.0 max	12.0 max
Identical index	P2O5 content	Al^3+ content	N/A	Na2O + SiO2 content	SiO2 content
Value of identical index	56.5% min	18% min	N/A	75% min	25% min
Water insoluble	0.1% max	100%	almost 100%	1.5% max	1.5% max
Moisture	0.5% max	22% max	16% max	N/A	5% max

2. MSD 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)

Factory Photos

 

 

Company Profile