Kimble-Chase* KIMAX* Melting Point Capillary Tubes, Regular and USP

Melting point capillary tubes are made of KIMAX-51 glass. The use of soda lime glass is not recommended for this work. A partial immersion thermometer, calibrated for 75 mm, is specified in most methods for the determination of melting points. Tubes are 100 mm long when supplied with both ends open, so that approximately 90 mm will remain after sealing. Tube length insures that the open end will extend well above the baths surface to prevent the bath liquid from entering the tube. USP tubes are designed from requirements contained in United States Pharmacopeia (USP) and have a smaller interior diameter than the regular tubes. 100 tubes per vial.
Image(s) are representative of the product group and not necessarily the individual product.

Regular
End Treatment: One end sealed
Length (mm): 90
Approx. OD (mm): 1.5 - 1.8

USP
End Treatment: One end sealed
Length (mm): 90
Wall Thickness (mm): 0.8 - 1.1

Regular
End Treatment: Both ends open
Length (mm): 100
Approx. OD (mm): 1.5 - 1.8

USP
End Treatment: Both ends open
Length (mm): 100
Wall Thickness (mm): 0.8 - 1.1