Product Description: White Carbon Black
Molecular Formula: SIO2
Molecular Weight: 60.08
CAS NO: 7631-86-9
Appearance: White Powder

Property: Silicon dioxide is a white or Colorless powder, when with a large content of Fe, it would be yellow.
Insoluble in water, soluble in acid, when in particle state, can play a role with molten caustic soda.

Application:
Used as rubber sole reinforcing agent, and has the function to make rubber products look light-colored and apparent. Its reinforced porperties approximate to carbon black.

Inspection Items	Standard	Inspection result
SiO2, dry  (%)	90.0 min.	92
Whiteness, %	Equal to or better than standard sample	Equal to or better than standard sample
Loss on heating (%)	4.0-7.0	6.56
Loss on burning (%)	3.0-6.0	5.15
PH value	5.5-7.0	6.7
Total Fe content ( mg/Kg)	1000 max.	495
DBP absorption value (cm3/g)	2.8-3.5	3
Specific surface area BET(cm2/g)	115-165	162.205
Analysis standard:	HG/T3061-1999
Inspection Items	Standard	Inspection result
SiO2, dry  (%)	99.5 min.	99.6
Whiteness, %	Equal to or better than standard sample	Equal to or better than standard sample
Loss on heating (%)	3.0 max	2.23
Loss on burning (%)	3.0-6.0	4
PH value	4-6	5.8
Total Fe content ( mg/Kg)	1000 max.	460
DBP absorption value (mg/g)	1.6-1.8	1.65
specific volume(mL)	0.03-0.05	0.04
Analysis standard:	HG/T3061-1999