General Lab Products & Reviews

This Hickman Still Head is a replacement part for the 6949M series of PYREX® microchemistry kits.

This Hickman Still Head is a replacement part for the 6949M series of PYREX® microchemistry kits.

This 250 mL capacity PYREX® solvent still head is used for maintaining oxygen free solvents. Head has sufficient storage space to allow solvent removal by syringe or drainage through 2mm T-bore PTFE (Polytetrafluorethylene) stopcock. It has a 24/40 Standard Taper outer joint at top, 24/40 Standard Taper inner joint at bottom and 14/20 Standard Taper inner joint on drainage arm.

This 500 mL capacity PYREX® solvent still head is used for maintaining oxygen free solvents. Head has sufficient storage space to allow solvent removal by syringe or drainage through 2mm T-bore PTFE (Polytetrafluorethylene) stopcock. It has a 24/40 Standard Taper outer joint at top, 24/40 Standard Taper inner joint at bottom and 14/20 Standard Taper inner joint on drainage arm.

This 10 mL PYREX® Dean Stark distilling receiver is graduated from 0 to 1 mL in 0.1 mL intervals, with a maximum scale error of 0.05 mL. The graduation intervals from 1.0 to 10.0 mL are 0.2 mL, with a maximum scale error of 0.1 mL. Reference: ASTM E-123.

These 150 mL PYREX® Buchner funnels have a 60mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exce…

These 150 mL PYREX® Buchner funnels have a 60mm diameter fine porosity fritted disc with a porosity range of 4 to 5.50 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…

These 150 mL PYREX® Buchner funnels have a 60mm diameter medium porosity fritted disc with a porosity range of 10 to 15 µm which is held toward the minimum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exce…

These 15 mL PYREX® Buchner funnels have a 20mm diameter coarse porosity fritted disc with a porosity range of 40 to 60 µm which is held toward the maximum pore diameter. The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in exces…

These 15 mL PYREX® Buchner funnels have a 20mm diameter fine porosity fritted disc with a porosity range of 4 to 5.5 µm which is held toward the minimum pore diameter . The porosity for the pore diameter of the filter is determined in the same manner as specified in ASTM E-128 “Maximum Pore Diameter and Permeability of Rigid Porous Filters for Laboratory Use.” The disc should not be subjected to pressure differential in excess…