Cobalt Free Blue Silica Gel 1-3mm Beads Chemicals Product

Basic Info

Origin	China
HS Code	382499

Product Description

Blue Silica Gel

Blue silica gel Introduction:Is also called Self-indicating silica gel. The specification is as follows:1. Form: Spherical or crystal(lump)2. Size: 0.5-2mm, 1-3mm, 2-5mm, 3-5mm, 4-6mm, 4-8mm, etc;3. Packing: 25kgs/bag, 25kgs/drum, 150kgs/drum, 800kgs/bag4. Color change: Blue to pinkThe microporous structure of silica gel affords a high surface area (up to 800 m2/g) that is ideal for the scavenging of atmospheric moisture. Since there is no chemical reaction associated with the dehydration process, desiccated compounds are never exposed to harmful by-products or contaminants.Silica gel is used widely as a laboratory desiccant for the following reasons:It can adsorb up to one third of its own weight in water vapour (this adsorption efficiency is approximately 36% greater than that of typical desiccant clays)It has an almost indefinite shelf-life if stored under airtight conditionsOnce saturated with water, silica can be regenerated by gentle heatingWith the exception of strong alkalis and hydrofluoric acid (HF), it is inert and resistant to attack or corrosionIt is non-toxic, non-flammable and easy to handleIt maintains the appearance of a dry product and its shape remains unchanged even when fully saturated with waterStandard white silica gel is referred to as being non-indicating. Self-indicating silica gels possess a chemical compound or dye that changes colour as moisture is adsorbed.Our self-indicating desiccants are available in "blue to pink" and "orange to green or white" format. Please note that medium size granules (1 - 5 mm) are suitable for laboratory desiccants whilst larger granules (2 - 5 mm or 4 - 8 mm) are normally employed in dynamic adsorption processes.CharacteristicsShape: glass-like pellets or lumps.Color: blue or light blue. Including blue gel indicator, chromotropic silica gel and blue silica gel. Turning from blue to red after absorbing moistures.FunctionsUseMainly used for absorbing moisture, anti-rusting of instruments, gauges and equipment in the enclosed conditions. After absorbing moisture, it turns from blue to red, visually indicating the relative humidity of the given environments. When being used with ordinary silica gel or drier, it indicates to which extent the drier absorbs the moisture and judges the relative humidity of a given environment. It is widely used as silica gel drier for the packing of precision instruments, leathers, shoes, clothes, foodstuffs, medicines and household electric appliances,etc.[Size] 1-3mm, 2-5mm, 4-8mm.[Packing] 25kg per compound bag or 170kg per drum.[Notes] Packing and size may be customized per your specific requirements.

Silica Gel Blue sachet: 0.5g, 1g, 2g, 3G, 4G, 5g, 6g, 10g, 100g, 500g, 1000g, etc.

ITEM		Specifications
		Blue Silica Gel Indicator	Blue Silica Gel
Adsorption capacity,%	RH=20%,≥	8.0	--
	RH=35%,≥	13.0	--
	RH=50%,≥	20.0	20.0
rattle rate,%,≤		10.0	10.0
Qualified size ratio,%,≥		96.0	90.0
Loss on heating,%,≤		5.0	5.0
Color	RH=20%	blue or light blue	--
	RH=35%	purple or purplish red	--
	RH=50%	light purplish red	purplish red or light purplish red
Original color		blue or light blue	blue or light blue