200mm Glass Graham Condenser Reflux Borosilicate 3.3 Laboratory Glassware | Канцтовары для офиса и дома

200mm Glass Graham Condenser Reflux Laboratory Glassware:

   We also can produce many other lab glassware products according to your requirement. If you have any requirement on the customized lab glassware, please contact us!

Item name: Glass graham condenser, reflux

Specification: 200mm

Material: Borosilicate 3.3 glass

Detailed pictures:

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Product description:

    A. Introduction:

 Borosilicate glass, a special glass material with excellent performance of low inflation rate, high temperature resisting, high intensity, high chemical and physical stability, high transparency rate, etc, has been widely used in the field of solar energy, chemical industry, medicine packing, electric light source, crafts and decorations, etc. Its perfect performance has been vastly accepted worldwide especially in the domain of solar energy, which has been extensively promoted by many developed countries such as Germany, America, Japan, etc with the brand name “PYREX” in America, “H-32” in Japan. 

  Borosilicate glass with performance of fire-resistance and physical intensity and stability has been regarded as ideal choice in lab experiment. The use of borosilicate glass beaker, test tube and so on can greatly increase the accuracy and safety in the experiment.

B. Chemical Composition:

  SiO2: 80.5%

  B2O3: 12.75%

  Al2O3: 2%

  R2O: 4.4%

C. Coefficient of Linear Expansion: 3.3x10-6 (20C-300C)

D. Property of heat-resistance and fast change: 260C-280C (250ml beaker sample)

E. Chemical performance: 

  Water-resistance: First degree

  Alkali-resistance: Second degree

  Acid-resistance: First degree

  With the fast development of chemical industry, the requirement for corrosion resistance of chemical instrument becomes more and more urgent and the trend of replacement of non-metallic by GG-17 material is under way. The excellent quality of GG-17 material which has stable chemical performance and mechanical intensity not only make it easier in chemical instrument glass pipe, but also solve the problem of anti-corrosion of medium.

5. We will use polywood case or carton for the packing, but if you have other requirement, please do not hesitate to contact us.

2. If you have any requirement on commercial invoice and commodity declaration for your order, please do let us know in advance, or we will just write the true amount and the name.