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Fine-pored Silica Gel (Type A) silica Gel

  • Transparent or translucent glass-like pellet or lump.
  • Average pore diameter:2.0-3.0 nm .
  • Surface area: 650-800 m2/g
  • Pore volume : 0.35-0.45 ml/g.
  • Specific heat : 0.92 KJ/kg.
  • Thermal conductivity: 0.63 KJ/m.hr.
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description

Use

Mainly used for drying and moistureproof , may also be used as catalyst carriers, adsorbents, separators and variable-pressure adsorbents, etc.


Technical Data

ITEM

Specifications

Typical values

Superior class

First class

Qualified class

Adsorption capacity,%,(25℃,wt)

RH=20%,≥

10.5

10.0

8.0

11.2

RH=50%,≥

23.0

22.0

20.0

29.2

RH=90%,≥

34.0

32.0

30.0

37.6

Loss on heating,%,≤

2.0

4.0

6.0

1.0

PH

4-8

--

--

4.0

Specific resistance, Ω·cm,≥

3000

--

--

5630

Silica content,%,≥

98

--

--

98.5

Qualified ratio of spherical granules,%,≥

82

--

--

92

Qualified size ratio,%

Negotiable

98

Bulk density, g/L

Negotiable

780

Note: Qualified ratio of spherical granules is only applicable to fine-pored silica gel pellet.


Size:
0.5-1.5mm . 0.5-1mm . 2-4mm . 2-5mm . 4-8mm.

Packaging: 20kg, 25kg, or 500kg per compound bag, net.

Notes: The moisture content, packing and size may be customized per your specific requirements.