Narrow Pore Silica Gel (A-type silica gel)

Product Details

Product Description

Product Description
Narrow Pore Silica Gel (A-type silica gel)
【Characteristics】
Narrow Pore Silica Gel includes spherical silica gel and lump silica gel. The narrow pore silica gel is transparent or semitransparent. The narrow pore silica gel is also called Type A silica gel.
Average diameter:2.0-3.0 nm.
Specific surface area: 650-800 m2 / g.
Pore volume: 0.35-0.45 ml / g.
Specific heat:0.92 KJ / kg. ℃.
Thermal conductivity coefficient : 0.63 KJ / m. Hr.℃
【Use】
Mainly used as desiccants to prevent items from moisture, it is also can used as catalyst carrier, adsorbent, separating agent and the raw material to produce PSA and Silica gel with moisture indicator.
【Sizes】
0.5-1mm、0.5-1.5mm、1-2mm、1-3mm、2-4mm、2-5mm、3-5mm、4-8mm etc.
【Packing】
N.W 25KG per bag or 900KG per bag.
【Note】
The moisture content, packing and size can be customized according to the customer's requirements.

Item		Specification			Typical Value
Adsorption capacity		Superior class	First class	Qualified class
	RH=20%	10.5min	10min	8min	11.2min
	RH=50%	25min	23min	22min	29.2min
	RH=90%	34min	33min	32min	37.6min
Loss on heating，%		2.0	4.0	6.0	1.0
PH value		4--8	4--8	4--8	5.6
Specific resistance，Ω.cm		5000min	3000min	3000min	4211min
Silica %		98.5min	98min	98min	98.5min
Qualified ratio of spherical granules %		95	90	80	90
Size		Negotiation	Negotiation	Negotiation	2-5mm
Bulk density, g/l		700-850			784
Note: The qualified ratio of spherical granules is only applicable to spherical silica gel.

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