article index
online catalog
free newsletter

Search
this site for:






about us
contact
ordering information
Privacy policy
Terms of Use



Paypal

CR Scientific


Filter Flask, Conical, 250 mL, Borosilicate glass.  Borosil brand, ungraduated.  New.
A water aspirator or vacuum pump (sold sep.) attached to the side tube provides  suction for speeding up filtration processes.  Takes Rubber Filter Aid to accomodate a Büchner funnel (see below; each sold separately).
Ship. wt. 1 lb
#C802.....$12.95 each

Quantity:


 
 Filtering Flask, Conical, 500 mL, Borosilicate glass.  Bomex or Borosil brand (may be ungraduated).  New.  
Tubulation diameter:  the smallest ridge has an O.D. of about 3/8";  the middle ridge has an O.D. of about 7/16";  largest ridge has O.D. approx. 1/2".  
Recommended vacuum tubing size:  3/8" to 7/16" I.D.
Ship. wt. 1.5 lbs.
#C805....$15.95 each

Quantity:



Filtering Flask, Conical, 1000 mL, Borosilicate glass.  Bomex or Borosil brand (may be ungraduated).  New.  
Ship. wt. 2.5 lbs
#C810....$22.95 each

Quantity:


#C653 and C654    Büchner Funnel, 70 mm (nominal I.D.).  
Outside diameter approx. 80mm. 
Capacity about 120 mL.
Takes 7 cm Filter Paper, #FP1027 (see below). 
Bowl height approx. 50 mm, overall height approx. 140 mm. 
New.
Ship wt 3/4 lb.
#C653 ... $5.99 ea.

Quantity:
.............................................................................................................................

#C653 and C654    Büchner Funnel, 90 mm (nominal I.D.).  
Outside dia. approx. 100 mm. 
Capacity about 200 mL.
Takes 9 cm Filter Paper, #FP1029 (see below).
Bowl height about 55 mm, overall height about 160 mm.    New.
#C654...$8.29 ea.

Quantity:


Filter paper circles   Filter Paper, Qualitative, Medium porosity, 7 cm.  Suitable for some types of paper chromatography as well.  Fits #C653 Buchner Funnel. 100 circles per pack.
#FP1027 ... $2.84 / pack

Quantity:
.............................................................................................................................

Filter paper circles   Filter Paper,  Qualitative, Medium porosity, 9 cm.  Fits #C654 Buchner Funnel.  100 circles per pack.
#FP1029 ... $3.84 / pack

Quantity:
More types of filter paper available on their own page



rubber filter aid Rubber Filter Aid - fits the Buchner funnel to the flask neck to provide enough of a seal for vacuum filtration.  One filter aid can be used with different sizes of flasks and Buchner funnels.
New.
$6.29 each

Quantity:


Vacuum Pumps for filtration are on their own page




Texas residents please read this.




Paypal
Catalog
    Glassware
    Rubber Filter Aid
    Stoppers
Main page





Terms of Sale / Use

Copyright Notice
    















Related items:


hand operated vac pump
Hand Vac. Pump




Support stands & clamps
Support Stands
& Clamps





Safety Article -

Using Filtration Flasks

























































Additional types of filter paper are available on their own page

Click here for more types of filter paper