This listing is for 1oz. (30 grams) of Pyrex glass wool.

Commonly used in chromatography columns, this fine filtering fiber is made of Pyrex borosilicate glass. It keeps the solid phase of standard gravity liquid chromatography columns in place, and is commonly used in purification of organic compounds. Borosilicate Pyrex is non-reactive with most solvents and organic compounds and has a lower thermal coefficient of expansion.

Product Name
 
Specification
 
The main parameters
 
Natural density
 

Quartz wool
 
Fiber diameter of 5-10um
 
A silica content: si02 ≧ 99.99%

2, the thermal conductivity of 0.01 - 0.029 kcal \ degree m

The following 3, temperature 1600 degrees
 
 

5-7KG \ Cube
 

Quartz wool
 
Fiber diameter of 2-5um
 

4, the thermal conductivity of 0.01 - 0.029 kcal \ of meters

The following 6, 1700 degree temperature
 
 

5-6KG \ Cube
 

Quartz wool
 
Fiber diameter of 1-3um
 
7, the silica content: si02 ≧ 99.99%

8, the thermal conductivity of 0.01 - 0.029 kcal \ degree m

The following 9, the use temperature of 1700 degrees
 
 

4-6KG \ Cube
 

Quartz wool
 
Fiber diameter of 1-2um
 
10, silica content: si02 ≧ 99.99%

11, the thermal conductivity of 0.01 - 0.029 kcal \ of meters

The following 12, temperature 1700 degrees
 
 

3-5KG \ cubic
 

Moisture content
 
Loss on ignition
 
Strand breaking strength
 
Temperature
 

≤ 0.4%
 
≤ 0.1%
 
> 0.05N/TEX
 
1300-1600 degrees
 

Shape
 
Hardness
 
Resistivity
 
Softening Point
 

Fine, soft cotton
 
6-7 Mohs
 
0
 
1730 degrees

Shipping:
Goods sent to the United States for 7-10 days.
I will add a tracking number in EBAY and PAYPAL.
You can query in the United States Postal Service.

Outside the United States
We ship worldwide with flat rate shipping by China Air mail(Registration, can be tracked). This international order may take longer to arrive. Normally the shipping time is 15 to 35 business days 。

Return & Refund policy:
In all cases, buyers pay shipping fees at their own cost to return products for exchange or refund. We will be responsible for the postage of replacements.
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