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Toothpaste silicon dioxide

Features:Low structure, low specific surface area, low oil factor and used in toothpaste, cosmetic and other fields. 0
Application range:toothpaste, cosmetic and other industries.
CAS No.:112926-00-8(7631-86-9)
EINECS No.:231-545-4
Technical parameters

Type	TOND-140 compound type	TOND-120 attrition type	TOND-160 thicken type
Item	numerical value	numerical value	numerical value
Appearance	white powder
Whiteness	≥96	≥96	≥96
PH value(25°C 5%water dispersion)	6.5-8.5	7.5-9.0	5.5-8.0
Screen underflow 220 meshes%	100	100	100
Screen underflow 320 meshes%	≥98	≥98	≥98
Loss on drying(105°C) %	≤8.0	≤8.0	≤8.0
Loss on ignition(900°C 2h) %	≤8.5	≤8.0	≤10.0
Soakage ml/20g	22-34	17-22	>34
Apparent density g/ml	≥0.25	≥0.35	≤0.25
Total salts(Na2SO4, NaCl) %	≤0.3	≤0.3	≤0.3
Refraction index	1.440-1.465	1.440-1.465	1.440-1.465
Silicon dioxidecontent(dry base)SiO2 %	≥96	≥96	≥96
sulfide	non	non	non
Reducible sulfur mg/kg	≤5.0	≤5.0	≤5.0
Heavy metal(Pb) mg/kg	≤20	≤20	≤20
Arsenic mg/kg	≤2.0	≤2.0	≤2.0
Hydrargyrum mg/kg	≤1.0	≤1.0	≤1.0
Total number of bacterium cfu/g	≤150	≤150	≤150