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Highly Resistant Glass Stirring Rod / Glass Rod Chemical Resistance

China Hengyang Desen Biotechnology Co., Ltd. certification
China Hengyang Desen Biotechnology Co., Ltd. certification
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Highly Resistant Glass Stirring Rod / Glass Rod Chemical Resistance

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Large Image :  Highly Resistant Glass Stirring Rod / Glass Rod Chemical Resistance

Product Details:
Place of Origin: China
Brand Name: Info@desen-nutrition.com
Certification: ISO9001,SGS,UKAS
Model Number: 10 piece
Payment & Shipping Terms:
Minimum Order Quantity: Free samples Available
Price: Negotiable
Packaging Details: Discreet package or as required
Delivery Time: 3-6 working days
Payment Terms: Western Union, MoneyGram, T/T,Bitcoins
Supply Ability: 500 kg / month
Detailed Product Description
Email: Info@desen-nutrition.com Whatsapp: 86-189 0844 6193
Skype: Carrie.xiao96 Alias: Glass Rod
Packing: Discreet Packing For Customs Pass Guaranteed Catalogue: Pharmaceutical Processing Equipment
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laboratory tools


chemistry lab equipment

Glass Stirring Rod Pharmaceutical Processing Equipment Glass Rod


6 x 200 mm - 10 pcs - Very high chemical resistance


Our borosilicate glass is highly resistant to water, neutral and acid solutions, concentrated acids and acid mixtures, and to chlorine, bromine, iodine and organic substances. Its chemical resistance is superior to that of most metals and other materials, even during prolonged periods of exposure and at temperatures above 100 °C.


Only hydrofluoric acid, concentrated phosphoric acid and strong alkali cause appreciable surface removal of the glass (glass corrosion) at elevated temperatures (>100 °C).


High usage temperature:


The maximum permissible operating temperature for our Glass Stirring Rod is 500 °C. Above a temperature of 525 °C the glass begins to soften and above a temperature of 860 °C it changes to the liquid state.


It can be cooled down to the maximum possible negative temperature and is therefore suitable for use with liquid nitrogen (approx. – 196 °C). During such use/ freezing. In general, the products are recommended for use down to – 70 °C. During thawing ensure that the temperature difference does not exceed 100 K.


Minimal thermal expansion & high resistance to thermal shock:


This glassware is characterised by high resistance to changes in temperature (ΔT=100 K). With its very low coefficient of linear expansion (3.3 x 10–6 K–1), literally no tension is built up in the article, when the temperature changes rapidly. Therefore, it does not crack or shatter, when boiling water is filled in.

Package Includes:


10 pcs 6 x 200 mm glass stirring rod


Physical data:


Coefficient of mean linear thermal expansion α (20 °C; 300 °C)
acc. to DIN ISO 7991
3.3 x 10-6 K-1
Transformation temperature T g 525 °C
Temperature of the Glass at viscosity η in dPa x s:
1013 (annealing point)

560 °C
107.6 (softening point) 825 °C
104 (working point) 1260 °C
Maximum short-time working temperature 500 °C
Density ρ at 25 °C 2,23 g x cm-3
Modulus of elasticity E (Young´s modulus) 64 x 103N x mm-2
Poisson´s ratio µ 0,20
Thermal conductivity λw at 90 °C 1,2 W x m-1 x K-1
Temperature for the specific electrical resistance of 108 Ω x cm
(DIN 52 326) t k 100
250 °C
Logarithm of the electrical volume resistance (Ω x cm) at 250 °C 8/at 350 °C 6,5
Dielectrical properties (I MHz, 25 °C) Dieletric constant ε 4,6
Dielectric loss factor tan δ 37 x 10 -4
Refractive index(λ = 587.6 nm) nd 1,473
Stress-optical coefficient (DIN 52 314) K

4,0 x 10-6 mm2 x N-1

Highly Resistant Glass Stirring Rod / Glass Rod Chemical Resistance 0


We Provide all Lab Equipment you need to cook steroid.


Such as: Lab Vacuum Filtration, Sterile vials for injection, Manual capsule counter 60 pcs/time, Filling Machine For Liquid, Round Bottle Labeling Machine, Millipore Sterile Syringe Filters, Flip Off Cap Crimper, Crimper, Customized Empty Hard Gelatin Capsule, Tablet Machine and so on......

Contact Details
Hengyang Desen Biotechnology Co., Ltd.

Contact Person: Sales Manager

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