item:

Specification:

SiO2 content (%):

≥98

Adsorption: 

RH=20%

≥9

RH=50%

≥22.0

RH=90%

≥30.0

Heating loss (%):            

≤5%

Size(mm):

2-4MM, 3-5mm, 4-8mm

Bulk density(g/l):

0.75    

PH

4

Qualified ratio of spherical granules%

≥94

Color change RH=20%≥

Color change RH=35%≥

Color change RH=50%≥

Original color

Light brown yellow

Light brown green

Light dark green

Orange