Borosil Glass Stirring Rod 205mm

It is a rod. It stirs. That sentence covers perhaps 10% of what a laboratory stirring rod actually does. A glass stirring rod scrapes precipitates off beaker walls. It transfers the last drop of a precious reagent. It aids filtration by directing liquid flow onto filter paper without splashing. It breaks up clumps in suspensions. It checks viscosity by how the liquid moves when pulled. And it does all of this inside chemical environments that would dissolve a metal rod, contaminate a reaction, or melt a plastic one. Borosil's 205mm glass stirring rods are manufactured from borosilicate 3.3 rod stock and fire-polished at both ends to remove sharp edges. The 205mm length fits comfortably across a 250ml to 1000ml beaker without being unwieldy. Common diameters are 5mm, 6mm, and 8mm — the wider the rod, the more mixing force per stroke and the more physically robust the rod is for heavy-duty stirring applications. Borosilicate glass is the only sensible material for a general-purpose laboratory stirring rod. It is chemically inert to almost everything a routine analytical or preparative lab will encounter. It does not react with acids, alkalis, organic solvents, or buffer solutions. It can be heated if necessary. It autoclaves without distortion. It can be cleaned with any standard laboratory glassware detergent and returned to service in the same condition it started in. These are used in chemistry, biochemistry, biology, pharmaceutical, clinical, and food testing laboratories everywhere on earth. They are so fundamental to laboratory work that procurement departments sometimes treat them as consumable stationery. Which is all the more reason to buy them from a manufacturer whose dimensional consistency means the rod fits the beaker, the rubber policeman fits the rod, and everything works as it should. Sara Wellness exports Borosil laboratory accessories to institutional buyers and laboratory distributors globally. Simple pricing. Reliable supply. Fast response.