25ml 50ml acid alkali lab glass burette for chemistry

Supplier: Wenzhou Lianying Education And Technology Co., Ltd.
Region: Zhejiang, China
Contact: Mr Nick Nan
Price: $2.00 /piece
Min. Order: 1 piece

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Product details

Model Number:	LY;	Warranty:	1 Year;
Port:	Ningbo;	Subject:	Chemical;
Material:	Glass;	Usage:	Laboratory Test;
Brand Name:	LY;	End User:	Senior school;
Condition:	New;	Product name:	glass burette 50ml for laboratory apparatus;
Color:	Clear;	Supply Ability:	1000 Piece/Pieces per Week;
Payment Terms:	L/C,D/A,D/P,T/T,Western Union,MoneyGram;	Classification:	BURET;
Place of Origin:	Zhejiang China;	Capacity:	25/50ml;
Type:	laboratory apparatus;	Certificate:	CE/ISO9001;

Product Description

6041-41

glass burette for laboratory apparatus

burette

A burette (also buret) is a vertical cylindrical piece of laboratory glassware with a volumetric graduation on its full length and a precision tap, or stopcock, on the bottom. It is used to dispense known amounts of a liquid reagent in experiments for which such precision is necessary, such as a titration experiment. Burettes are extremely accurate - a 50 cm³ burette has a tolerance of 0.1 cm³ (class B) or 0.06 cm³ (class A).

Also used for buretting are buretting syringes. These are calibrated to Volumetric A grade tolerances which are equal to or better than the traditional burette tolerance. The graduated buretting tube is provided with a thumb operated piston and PTFE seal which slide within the tube in a positive displacement operation. This arrangement is provided to achieve improvements in reliability, by removing problems of bubble entrapment while filling, leaks and blockages in stopcock mechanisms.