beaker
Descripation: our beaker used Borosilicate Glass Alkali resistance,Acidproof.widely use for lab in school, factory, hospital.
capacity: 25ml, 50ml,100ml,150ml,200ml,250ml,300ml,500ml,1000ml,2000ml,3000ml,5000ml,10000ml
|
SiO2 |
80.5% Min |
|
B2O3 |
12.75% Max |
|
Al2O3 |
2.0 %Max |
|
R2O |
4.4% Max |
|
Coefficient of linear expansion |
3.3*10-6(20℃-300℃) |
|
Properties of heat-resistance and fast change |
260℃-280℃ |
|
Water tolerant |
One grade |
|
Alkali resistance |
Two grade |
|
Acidproof |
One grade |