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Complex Sodium Disilicate

Item Unit Standard
white, small particle
whiteness % ≥ 85.00
Ca exchange capacity(CaCO3) mg/g ≥ 400
Na2O  % ≥ 20
Na2O + SiO2  % ≥ 50
PH 25℃1%solution ≤ 12.50
Bulk Density g/ml 0.48-0.60
Water insoluble % ≤ 1.50
Moisture % ≤ 5

Complex Sodium Disilicate is widely used as a substitute to STPP in production process without any change in equipment when making detergent powder such as concentrate detergent powder, ordinary detergent powder, phosphorous free washing powder, low phosphorous detergent powder and metal-washing powder
1. Completely friendly to environment 
2. Excellent function and high calcium exchange ability (400min), better than STPP
3. Excellent PH buffering capacity
4. Competitive price to reduce much cost 
5. Free flowing and low density: 0.48-0.6g/ml around.
6. Not easily absorb moisture in air to become cake. 
7. Very suitable for high tower sprayer and especially dry mix or blending
8. Be used same as STPP in producing process, without any change in equipment


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