The flow of liquid from the tube to the burette tip is controlled by the stopcock valve.
Buret and ring stand.
There are two main types of burette.
The hardware slides up and down the ring stand so the glassware is held at exactly the desired distance from the flame.
Rod 24 l cork lined burette clamp with boss head and retort ring 2 5 dia 4 7 out of 5 stars 263 29 99 29.
Eisco single wooden burette stand this single wooden burette stand is made from seasoned hardwood and can accomodate 1 burette up to 10 mm dia.
Rod 24 l cork lined burette clamp with boss head and retort ring 2 5 dia 4 7 out of 5 stars 250 29 99 29.
Sciencent support stand ring stand 8 x 5 coated base size 24 corrosion resistant rod retort ring 2 5 dia and cork lined burette clamp with boss head heavy industrial grade retort stand 3 7 out of 5 stars 11.
Laboratory grade metalware set support stand 8 x 5 12mm dia.
Crucible with cover clay triangle ring stand and ring support.
Standard support rod with built reinforced hook connector for use with stainless steel double buret clamp.
Clamp unit attaches to the support rod which attaches to the optional porcelain base sold separately.
In chemistry a retort stand also called a clamp stand a ring stand or a support stand is a piece of scientific equipment intended to support other pieces of equipment and glassware for instance burettes test tubes and flasks.
For chemical reactions that require heat a bunsen burner is placed on the base of the ring stand.
Wooden base 200x100 mm with threaded hole wooden support dowel 460x16 mm and clamp with 2 nylon thumb screws included.
Ring stands are convenient and safe because they prevent the scientist from having to hold glassware.
A number of accessories such as clamps of various types and.
Medium support plate designed to hold hotplates stirrers and other apparatus to lab frames or ring stands.
A burette also buret is a graduated glass tube with a tap at one end for delivering known volumes of a liquid especially in titrations it is a long graduated glass tube with a stopcock at its lower end and a tapered capillary tube at the stopcock s outlet.