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Orange silica gel

Description:

Orange silica gel has a strong capacity of absorption moisture. During the process of absorption moisture, the appearance of the color changes obviously according to the hygroscopic capacity. So it’s often called "humidity indicator."

Its main component is silicon dioxide and its color varies with the humidity. With the exception of blue silica gel’s performance, it also has characters of cobalt chloride free, non-toxic, odorless, harmless, etc.
Its molecular formula is: SiO2 + H2O + C25H30CLN3


ITEM

ORANGE SILICA GEL

Bulk Density(g/ml)

0.75

Specific Surface Area(m2/g)

700

Average Pore Diameter( nm)

2.4

Pore Volume(ml/g)

0.32-0.39

Specific Heat(KJ/kg.°C)

0.92

Thermal Conductivity (KJ/m.Hr.°C)

0.63

Regeneration Temperature(°C)

100~120

 


ITEM

SPECIFICATION

Typical Value

Superior Class

First Class

Qualified Class

Adsorption
Capacity

RH=20%,% ≥

12

10

8

9

RH=35%,% ≥

20

18

15

17

RH=50%,% ≥

27

24

20

25

RH=90%,% ≥

40

36

30

35

Rattler Loss,%≤

10

10

10

10

PH Value

2-4

2-4

2-4

4.0

Specific Resistance ,Ω.cm ≥

5000

3500

3000

3500

Silica ,% ≥

98.2

98

98

98

Qualified Ratio of Spherical Granules ,% ≥

95

90

80

85

Ratio of Size Qualified ,% ≥

100

99.5

90

97

Moisture Content,% ≥

1.5

2.0

5.0

5.0

Bulk Density, g/ml

0.78

0.75

0.70

0.76

Color

RH 20% ≥

Light Yellow

RH 35% ≥

Light Green

RH 50% ≥

Light Dark Green

Original Color

Orange

Notes: The value of qualified ratio of spherical granules is just applicable to the qualified ratio of silica gel spherical granule.