Detailed

ITEMS DX-S30 DX-S40
Form White powder White powder
Whiteness 98 98
SiO2 (dry basis) % ≥99.9 ≥99.9
PH value 6.5-7.5 6.5-7.5
BET surface area m2/g 220-260 240-280
DBP absorption value ml/100g 280-320 320-360
Average particle size um 3月7日 3月7日
Sieve residue (45um) % <0.05 <0.05
Heating loss (105 for 2hr.) % 2.0-3.0 2.0-3.0
Ignition loss (1000 for 2hr.) % 3.0-4.0 3.0-4.0
Iron content % ≤0.0015 ≤0.0015
Soluble salt (Na2SO4) % ≤0.02 ≤0.02
Lead content % ≤0.0001 ≤0.0001
NaCl content % ≤0.01 ≤0.01
Heavy metal content % ≤0.001 ≤0.001
Arsenic content % ≤0.00001 ≤0.00001
package 10kg/bag 10kg/bag
Food grade silicon dioxide are main used as water reducing , stabilization of food、medicine、animal food and carrier, clarify assistance and the attach water reducing of essence and spicery. The form of the product is white powder. Because of the sub-micro size and large BET of silicon dioxide, it can act as interval material between the granules of powder, at the same time, it also can improve the free flow of powder. Its water reducing feature can promote sorption and to prevent caking.
We can according to customer’s requirement produce needing grade that particle size from 3um to 45um. Mainly we suggest 5-7um grade product.

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