Type-A silica gel

type-asilica gel can prevent items from moisture,mildewing and rusting.

Silica gel with fine pores includes spherical silica with fine pores and massive silica with fine pores. Spherical silica with fine pores has the appearance of colorless or yellow-transparent or translucent spherical particle, massive silica with fine pores is a colorless or yellow translucent glass-like irregular particle.[Basic quality parameters]The average diameter is 2.0-3.0 nm, ratio surface area is 650-800 m2 / g, pore volume is 0.35-0.45 ml / g, ratio heat 0.92 KJ / kg. °C, thermal conductivity coefficient is 0.63 KJ / m. Hr.°C.

Item		Specifications			Typical Date
Adsorption capacity	RH=20%	Superior class	First class	Qualified class
	RH=50%	12min	10min	8min	11min
	RH=90%	26min	24min	20min	25min
Loss on heating,%		36min	32min	30min	37min
PH value		4--8	4--8	4--8	4.0
Specific resistance,Ω.cm		3000min	3000min	3000min	4000min
Silica %		98.5min	98min	98min	98.5min
Qualified ratio of spherical granules %		95	90	85	90
Size		NA	NA	NA	2-4mm
Bulk density, g/l		NA	NA	NA	780
Note: Qualified ratio of spherical granules is only applicable to fine-pore silica gel.

[Use]Mainly used as desiccants, moisture beads, agents to remove smell and all kinds of absorbents. Widely used to control relative humidity of the environment for storage and transport of instruments, meters, instruments equipment, leather, luggage, shoes, textiles, food, medicine and so on. It can prevent items from moisture, mildewing and rusting. Because of their high bulk density and obvious effect to absorb moisture in the case of low humidity, it can be used as air cleaner. They are widely used in the sea transport of ocean because the goods during transport often degenerate owing to temperature, the product can be used effectively to absorb water so that the quality of the goods is ensured.[SIZES] 0.5-1mm,1-2mm   1-3mm,2-4mm,3-5mm,4-8mm.[PACKING] 25KG per bag or 500KG per bag.[NOTE] The moisture content, packing and size can be adjusted according to customer’s different requirements.

 

Type-A silica gel