Color Change Orange Silica Gel for Column Chromatography

• Shape: Beads
• Drying Method: Static Drying
• Kind: Silica-Gel Desiccant
• Model NO.: Silica Gel
• Sorbent: Silica Gel
• Desiccant: Chemical Desiccant
• Silicon Dioxide Content: >98.5%
• Size up to Grade: >90%
• Bulk Density: 750kg/M3
• pH Value: 4
• Transport Package: Plastic Bag, 25kg/Bag
• Specification: 1-3mm, 2-4mm, 3-5mm, 4-6mm, 5-7mm
• Trademark: XINGFENG
• Origin: China
• HS Code: 3824999990
• Production Capacity: 50000mt/Year

Product Description

Color Change Orange Silica Gel for Column Chromatography
Description:
The main component of orange silica gel 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.
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, normally called "humidity indicator."

Application:
The gel is mainly used for drying, instructing the degree of drying or humidity, and widely used in precision instruments, pharmaceuticals, petrochemicals, food, clothing, leather, home appliances and other industrial gases, etc. It can also be used for domestic purposes such as moisture proofing and dehumidifying.

Physical Characteristics:

Item	Date
Bulk Density (g/ml)	0.75±0.03
Specific Surface Area (m^2/g)	700
Average Pore Diameter (nm)	2-4
Pore Volume (ml/g)	0.30-0.39
Specific Heat (KJ/kg.ºC)	0.92
Thermal Conductivity (KJ/m.Hr.ºC)	0.63
Regeneration Temperature (ºC)	100~120

Technical specification:

Item		Typical Value
Adsorption Capacity	RH=20%, % ≥	9
	RH=35%, % ≥	17
	RH=50%, % ≥	25
	RH=90%, % ≥	35
Rattler Loss, % ≤		10
PH Value		4.0
Specific Resistance, Ω.cm ≥		3500
Silica, % ≥		98
Percent of pass of granularity, %		85
Ratio of Size Qualified, % ≥		97
Moisture Content, % ≤		2.0
Color	RH=20% ≥	Light Yellow
	RH=35% ≥	Light Green
	RH=50% ≥	Light Dark Green
Original Color		Orange

Package and Shipping:

Package Type	Container Load Capacity		Delivery time	Quality Insurance	Payment Terms
	20 GP	40 GP
Plastic bag of 0.1m3	15-22 tons	*	Within 3-10 days	Chinese National Standard; Offer quality assurance as request.	T/T, L/C, Paypal, West Union