Learn how to choose the best option for your application
Just about any laboratory requires a variety of flasks, test tubes, beakers, graduated cylinders, dishes, and flasks. Many of these supplies we offer are available in glass or alternatively plastic materials. This post will help you better understand the differences between glass and plastic and help you decide which application are better suited these materials. First lets go over some of the main advantages and disadvantages of both.
Advantages of Glassware
• Beakers can be heated on hotplates without melting or breaking
• Easier to clean and can be re-used frequently
• Improved transparency of glass offers better visibility of graduation marks for more accurate readings
• Better chemical resistance against acids and alkaline solutions
Disadvantages of Glassware
• High chance of breaking which can result in sample loss and exposure to harmful solutions creating an unsafe lab environment
• Glass containers cannot be used to hold hydrofluoric acid
• Not disposable after every use and would have to be cleaned or autoclaved
Advantage of Plasticware
• Reusable and can be autoclaved (Polypropylene plastic only)
• Lightweight for better ergonomics
• Can be recycled and are more environmentally friendly
• More cost-effective than glass
• More convenient as they can be disposed of after each use
• Better safety as plastic materials are non breakable and flexible
Disadvantages of Plasticware
• Not as good clarity in comparison to glass
• Are effected by high temperatures
• Graduation marks aren’t as clear which can lead to inaccurate results
Types of plastic used in laboratory plasticware
Many of our Globe Scientific and United Scientific plasticware is made from different types of plastic which include polypropylene (PP), Postystrene (PS) Low density polyethlene (LDPE) high density polyethlene (HDPE) and polymethlpentene (PMP) All these various types have their strengths and weakness and can be used in many different applications.
Types of glass used in laboratory glassware
The most popular type of glass used in laboratory glassware is borosilicate glass. These type of glassware are resistant to thermal shock and are made from silica and boron trioxide during the manufacturing process. This makes glassware that is highly durable and can withstand high temperatures. Additional soda lime glass culture tubes are also available in our glassware section. Soda lime glass does not have as good chemical resistance and durable in comparison to brosilicate glass.
Glassware or plasticware which one is best for you?
For start up labs and classrooms plasticware may be the best way to go as it more budge friendly and makes for a safer lab work environment. However when working in chemistry laboratories glassware can offer improved resistance to chemicals when acidic and alkaline solutions are used. Additionally when using equipment like hotplate and stirrers glassware will offer the best resistance and hold up to extreme temperatures. In conclusion consider the pros and cons of glassware and plasticware in regards to your application. If your budget allows it is a great idea to stock up on both glass and plastic supplies to truly benefit from both and have the ability to pick the best option when in the lab.