Products

SE12010 Nitrogen Flask round bottom long neck

GG-17 high polymer boron silicon glass, of the same type as American “PYREX” and Japanese “H-32” glass, possesses excellent physical and chemical properties. It is the best basic material used for instruments in the country and even in the world. Products made of such glass are excellent competitors in the world and very popular.

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capacity
ml
Bulb O.D.
mm
Neck O.D.
mm
Height pcs/ctn ctn size/cm
Length Width Height volume/ctn
100 62 22 220 70 68 49 24 0.08
150 70 23 240 70 68 49 24 0.08
250 82 24 270 70 72 49 29 0.102
500 100 30/35 300 48 73 45 33 0.108
1000 132 36 370 24 62 42 43 0.112

GG-17 high polymer boron silicon glass, of the same type as American “PYREX” and Japanese “H-32” glass, 
possesses excellent physical and chemical properties. It is the best basic material used for instruments in the country and even in the world. 
Products made of such glass are excellent competitors in the world and very popular.

 
The following are the main technical targets of GG-17 glass:
 
1.Chemical Compositions:

SiO2 B2O3 Al2O3 R2O
80.50% 12.85% 2.10% 4.40%
 
2.Coefficient of linear expansion:
3.3×10-6 (20’C~300’C)
 
3.Properties of heat-resistance and fast change:
260’C~280’C (sample 250 ml breaking)
 
4.chemical properties:

Water-resistance Alkali-resistance Acid-resistance
Grade I Grade II Grade I
 

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