Globe Glass™ media bottles are designed with a wide mouth for ease of filling, dispensing, and pipetting. A drip-free pour ring and autoclavable polypropylene (PP) screw cap enable sterilizations of media and reagents. Globe Glass™ media bottles are available in sizes 50mL to 10000mL

Features

• Borosilicate glass for low coefficient of thermal expansion provides exceptional resistance to thermal shock,
• Polypropylene (PP) pouring ring for drip-free liquid transfer,
• High resistance to most acids, alkalis, and solvents, 
• Dual scale metric graduations,
• Durable white enamel printing, 
• Large white marking area,
• Screw Cap enabled sterilization.

Specifications 

• ASTM E438, Type I, Class A, Borosilicate 3.3 Glass,
• GL32 polypropylene (PP) screw cap on size 50mL,
• GL45 polypropylene (PP) screw caps on sizes 100mL to 10,000mL.

• Chemical Composition – Low alkali borosilicate glass typically composed of 81% SiO2, 13% B2O3, and 4% Na2O.
• Optical Properties – Appears colorless and shows no noticeable absorption of light in the visible spectrum.
• Chemical Resistance
• Highly resistant to water, neutral and acid solutions, concentrated acids and their solutions, as well as bromine, chlorine, iodine, and organic matter, 
• Avoid use with hydrofluoric acid, very hot phosphoric acid, and alkaline solutions which will attack this glass.
• Thermal Properties:
• Coefficient of Linear Expansion: 32.5 x 10-7 cm/cm/°C
• Strain Point: 515°C
• Annealing Point: 565°C
• Softening Point: 820°C
• Specific Heat: 0.2
• Thermal Conductivity: 0.0027 Cal/cm3/°C/Sec

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