chemical composition

SiO 2

Al 2 O 3

Fe 2 O 3

CaO

Na 2 O

MgO

TiO 2

K 2 O

H 2 O

Content %

45-48

20-33

2-5

0.03-0.05

0.8-1.5

0.69-0.48

0.06-0.65

7-9.8

0.01-0.13

proportion

Refractive index

PH value

BaiDu

Diameter to thickness ratio

Moh's hardness

Temperature resistance

Loss on ignition

Moisture

2.87

1.66

7-8

60-80

＞60

2.75

1000 ℃

2.8-3%

＜1%

Sand content %

Loss on ignition %

100 mesh

<0.28 g / cm 3

＞70

＜5.0

＜1.0

＞70

＜0.2

＜4.3

400 mesh