Jump to content



Featured Articles

Check out the latest featured articles.

File Library

Check out the latest downloads available in the File Library.

New Article

Product Viscosity vs. Shear

Featured File

Vertical Tank Selection

New Blog Entry

Low Flow in Pipes- posted in Ankur's blog

1

Information About Silica Gel


1 reply to this topic
Share this topic:
| More

#1 ASH25320

ASH25320

    Gold Member

  • Members
  • 50 posts

Posted 09 July 2019 - 03:48 AM

Dear All,

 

I am trying for procurement of silica gel with following specs.

 

Service- for drying instrument air @ 7 Bar.

 

Specifications for Silica Gel                           Silica Gel charge Conforming to IS3401:1970                       Quantity required -1500 Kg                           Shape-                                                         Large Pores granular silica  gel.                 Appearance-                                              Opaque.                     Size-                                                             2.7 to 7.00 MM                     Tolerance-                                                    +/- 5%                     Bulk Density Kg/M3 (Dried at 150 DEG C)-              400-500                     Moisture Absorption capacity @ 25DEG C & 100 % RH at EQ % W/W     70 (MIN)                 FREE MOISTURE Content (Determined at 120 DEg C.)-                                    Not more than 4 % BY WT.                 Loss on Ignition %  (Over 150DEG C)                        4 (+/- 1)                     Mechanical Strengtth  %                                               86 (MIN)                     CHLORIDE AS NaCL %                                                     0.05                       SULPHATE AS NA2SO4   %                                            0.25      

 

 

However a vender says he has silica gel with BD of 500-650 kg/m3 & adsorption capacity of 50 % min

 

My question is

1. How BD affects adsorption capacity & surface area?

2. is it okay if I accept silica gel of 500-650 kg/M3 BD inplace of current spcs mentoned above ?

Any information regarding silica gel, its various properties is most welcome.

 

Thanks for your time...



#2 breizh

breizh

    Gold Member

  • ChE Plus Subscriber
  • 4,347 posts

Posted 09 July 2019 - 05:26 AM

Hi ,

What don't you buy the product you need from your existing supplier as long you are satisfied with?

 

A quick check on internet is showing product with different BD : above 750 kg/m3 and 4 to 500 kg/m3 .

you need to compare the adsorption capacity of the silica gel for different RH % @ a standard temperature .

 

BD has to do with particles size .

 

Only you can take the risk .

my view

Breizh


Edited by breizh, 09 July 2019 - 05:39 AM.





Similar Topics