Products

SE12007 Boiling 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 mm pcs/ctn ctn size/cm
Length Width Height volume/ctn
50 53 20 105 150 55 25 39 0.054
100 65 22 125 100 68 30 31 0.063
150 76 23 145 80 61 34.5 36 0.076
250 88 25 165 60 54 39.5 41 0.087
500 110 33 210 35 68 49 24 0.08
1000 137 36 275 24 72 49 29 0.102
2000 175 46 310 15 73 45 33 0.108
3000 199 50 380 8 66 34 41 0.092
5000 235 56 420 6 62 42 43 0.112
6000 250 62 350 6 62 42 43 0.112
10000 297 65 550 2 59 38 31 0.07
15000 330 68 600 2 71 43.5 36 0.111
20000 370 76 650 2 73 54 39 0.154
30000 404 95 670 2 81.5 55 42 0.188
50000 460 110 710 1 72 47 47 0.159

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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