Laboratory 10ml 25ml 50ml 100ml Clear/Amber Glass Burettes With PTFE Straight Stopcock

Short Description:

Product Name: Burette with straight stopcock

Material: Boro 3.3 glass

Color: Clear

OEM is available

Payment Term: T/T,L/C,Western Union,Palpay

Samples: Offered within 5 days generally

Loading Port: Qingdao /Shanghai port or up to customer

Delivery Time:15-30 days up to customer’s quantity


Product Detail

Product Tags

Laboratory Glassware

Burette

Burette Introduction

The burette is a volumetric instrument used to accurately place an uncertain amount of liquid. It is made of a slender and uniform glass tube with a scale on the surface of the tube, a pointed mouth at the lower end, and a piston in the middle to control the speed of titration.

Laboratory 10ml 25ml 50ml 100ml ClearAmber Glass Burettes With PTFE Straight Stopcock (1)

Product Parameters

BOROSILICATE GLASS

BORO3.3

SiO2 Content >80%
Strain Point 520°C
Annealing Point 560°C
Softening Point 820°C
Refractive Index 1.47
Light Transmission(2mm) 0.92
Elastic Modulus 67KNmm-2
Tensile Strength 40-120Nmm-2
Glass stress Optical Coefficient 3.8*10-6mm2/N
Processing Temperature(104dpas) 1220°C
Linear Coefficient of Expansion(20-300°C) 3.3*10-6K-1
Density(20°C) 2.23gcm-1
Specific Heat 0.9jg-1K-1
Thermal Conductivity 1.2Wm-1K-1
Hydrolytic Resistance(ISO 719) Grade 1
Acid Resistance(ISO 185) Grade 1
Alkali Resistance(ISO 695) Grade 2
Thermal Shock Resistance Rod6*30mm 300°C

About Butette

Product Details

Borosilicate glass has excellent chemical and physical properties.As described in the International Standard DIN ISO 3585, the linear expansion coefficient of the primary hydrolyzable glass is 3.3 for applications requiring excellent chemical resistance and thermal resistance (including thermal shock resistance), as well as high mechanical stability. It is a typical glass for chemical equipment.

Laboratory

Clear scale .

Printed scales are clearer and less prone to wear.Pipette mouth section is smooth and round,beautifully made.High transparency, more intuitive to observe liquid.

Product Specification

The dimensions are all measured by hand, so there may be some errors. Please contact us for the specific freight.

Laboratory (1)
Laboratory (2)
Laboratory (3)

1642A

Burette with straight stopcock

Capacity(ml)

graduation(ml)

Capacity tolerance(±ml)

Length(mm)

10

0.05

0.025

600

25

0.1

0.05

630

50

0.1

0.05

860

100

0.2

0.1

860

Instruction For Use

Before using the burette, remove the piston,wash and dry the water with filter paper or suck it dry, install the piston and turn it to make thecontact between the piston and the plug groove transparent, and finally test whether the water leaks.


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