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Contact Person: Mr.Bob Li
Tel:0086-515-88821977
Fax:0086-515-88434701
Mobile:0086-13770068289
Email:sales@piaoqc.icu
greatwglass@hotmail.com
PROPERTY  

PROPERTIES OF GLASS

 

Laboratory glassware from our company are manufactured of different special glass of high quality according to different requirements of the various items. The general characteristics as well as the principal physical and chemical properties of these glass are described as follows:

I.GG17 GLASS (Boro 3.3 Glass)

GG17 glass is a new special borosilicate glass of excellent chemical and physical properties with a silica content of 80%. It is highly stable in structure and, as a result, has marked mechanical strength and very high resistance against chemical attacks. Furthermore, due to its low linear coefficient of thermal expansion, this glass is cable of withstanding high thermal shock and possesses good moulding ability. It is an excellent material for making intricate lamp-blown articles and laboratory apparatus where external heating is necessary.

Principal Physical and Chemical Properties 

SiO2 Content

80%

Linear Coefficient of Thermal Expansion

3.3x10-6K-1

Strain Point

520

Acid Resistance

Grade 1

Softening Point

820

Alkali Resistance

Grade 2

Annealing Point

560

Thermal Shock Resistance

300

II NEUTRAL GLASS(Including Amber Glass)

Neutral Glass is a kind of glass with low borosilicate, Sodium calcium, which possesses excellent chemical and physical properties widely made for filtering flask, aspirator and gas generator volumetric glasswares, Desiccators, bell jars, reagent bottles, specimen jars etc.

SiO2

75

Softening Point

740

Density

2.40g/cm3

Resistance to Water

HGB1

Strain Point

510

Linear Coefficient of Expansion α

8.0x10-6K-1

Annealing Point

550

 

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