Products

SE12011 Conical Flask wide neck with graduation

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
Bottle O.D.
mm
Neck O.D.
mm
Height pcs/ctn ctn size/cm
Length Width Height volume/ctn
50 51 34 85 200 56 27 42 0.064
100 64 34 105 200 69 32 52 0.115
250 85 52 137 80 75 43.5 33 0.108
500 108 52 175 48 58 40 41 0.095
1000 131 52 222 36 73 35 49 0.125

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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