Borosilicate Lab Glassware used for Laboratory Applications

Toll-Free No.18008331633
A GLASS APART


   
 

 

 

Product Range
Product Range Bottom
 
 
 
 
 
 
 
 
Creating Glass with Vision
Technical Data
 

LOW EXPANSION BOROSILICATE GLASS

From 16th century till date, chemical research team have used glass containers for a basic reason is the glass containers is transparent, almost invisible and the contents and the reaction are clear and visible but to heat, cool and mix chemical substances and ordinary glass is not always enough for laboratory works.

Laboratory works require apparatus made of glass which can be easily molded into any desired shape or form. It offers maximum inertness when in contact with the widest range of chemical substances which can withstand thermal shock with fracture and high temperature work without deforming, and that will be resilient enough to survive everyday knocks to which it will be subjected in normal laboratory handling, washing and sterilizing processes.

Chemical Composition

Glassco Glassware is a low alkali borosilicate composition. It is virtually free of magnesia-lime-Zinc group and contains only traces of heavy metals. Its typical chemical composition is given below:

Percentage by weight

SiO2

81

B2O3

13

Na2O

4

In general the 'Strain point' should be regarded as the maximum safe operating temperature of Glassco Glassware. When heated above 500° C the glass may get permanent stress on cooling. All Glassco lab ware is annealed in modern ovens under strictly controlled conditions to ensure minimal residual stress in the products.

Chemical Durability

Glassco Glassware is highly resistance water, neutral and acid solutions, concentrated on acids and their mixtures as well as to chloride, bromine, iodine, and organic matters. Even during extended period of reaction and at temperatures above 100° C, its chemical resistance exceeds of mot metals and other materials. It can withstand repeated dry and wet sterilization without surface deterioration and subsequent contamination. Resistance to attack of various chemicals is shown under. Only hydrofluoric acid, very hot phosphoric acid and alkaline solutions increasingly attack the glass surface with rising concentration and temperature.

Contact Chemical

Duration in hour

Loss in Wt. mg/m

Water distilled at 100°C

6

10

Water Vapour Steam at 121°C

1

75

Acid HCI

6

100

80% H2So4at 130°C

12

140

Alkali - 1N soln. of NA2Co3 boiling Infusion Fluids Isotonic

6

4000

Nacl(0.85%) 121°C

2.5

70

Glucose(5%)121°C

2.5

50

Fabrication with Borosilicate Glass

Due to low expansion of glass and easy workability this glass can be shaped, formed, joined into complicated apparatus. It can be done even by an analyst in his own laboratory. He can keeps on changing till he gets what he needs. In case where annealing in a controlled oven is difficult then he can do so b flame annealing which is also a great advantage.

Optical Properties

Laboratory glassware is made from Borosilicate Glass which shows no noticeable absorption in the visible region of the spectrum. It appear consequently clear and colorless.

 
 

HOME | PRODUCTS | COMPANY PROFILE | EXHIBITION | CONTACT US | GLASSWARE RANGE
Copyright © 2010 Glassco Laboratory Equipment - All Rights Reserved.
Website Design & Website Development Company India VardhmanSoft

Borosilicate Lab Glassware Manufacturer Exporter India