Borosilicate ("pyrex") Glassware
Quality, reusable laboratory glass at disposable prices! ™
Laboratory Chemistry Glassware
 Borosilicate glass
withstands thermal shock & chemical attack better than most other kinds and is the material of choice for use in many chemistry applications.
Glassware cannot be returned for any reason; this is for your safety and ours. It would be prohibitively
expensive to test for bacteriological, chemical or radiological agents since there is no way to
tell if glass has been contaminated just by looking at it. We would have to throw it away even if you
claim to never have opened the package.
Beakers. Borosilicate science lab glass beakers can be used for routine mixing, measuring and boiling. Similar to pyrex beakers in chemical composition, they can be used for all the same basic aqueous measuring, mixing and heating applications where a glass lab beaker is required.
Boiling Flasks. These borosilicate boiling flasks (florence flask) are made to ISO 1773 and are highly resistant to breakage due to heating or chemical attack. A flat bottom boiling flask can be used on a wire mesh, a round bottom one needs a clamp and bosshead. Use instead of an erlenmeyer flask if vigorous boiling is required.
Burets. Glass burets (burettes) have a variety of applications and are used mainly where accurate amounts of liquid must be added in small amounts. A class B buret will suffice for most non-analytical applications such as acid-base titrations and measuring motor oil for motorcycle racing.
Erlenmeyer Flasks. An erlenmeyer flask is commonly used for simple measuring, storing and mixing of liquids. They can be used as wine or juice containers, culture chambers and brewing vats. We supply cork and rubber stoppers to fit them but for many applications, a piece of cellophane (parafilm) will also work. These flasks are autoclavable. We have cycled them repeatedly without any failures.
Funnels. We have currently two types of funnels. 250, 500 and 1000ml separatory funnels with glass or teflon (PTFE) stopcocks and stoppers. The other type is known as a thistle tube or safety funnel. This style is designed to work mainly with larger flasks such as the 1000ml Erlenmeyer flask or filtering flask.
Graduated Cylinders Graduated cylinders are handy for accurate measurements of small volumes of liquid that cannot be done with beakers and flasks. A borosilicate glass graduated cylinder should be used instead of other materials such as polypropylene and TPX if you are going to use oxidizing materials and certain hydrocarbons which can cause plastic to cloud.
Pipets. These class B, blowout measuring pipets are accurate to 0.1% and are ideal for measuring small volumes for doing chemical titrations and serial dilutions for naturopathic medicine tinctures used in homeopathic remedies and other new age therapies. A glass measuring pipet is an autoclavable (sterilizable), reusable, economical alternatives to disposibles.
Test Tubes. Test tubes are among the most common of requirements for lab supplies. The 18x150mm is considered the standard lab test tube size. The largest, 25x150mm will hold a cigar or spices. A culture tube is a test tube without a lip.
Volumetric Flasks. Volumetric flasks are used in analytical chemistry to produce accurate solutions. However, they can be used as decorative glassware around the home for holding salad dressings, etc. This brand of volumetric flask is made to ISO 1402 standards and are class "B" accuracy. Stoppers are included.
Watchglasses. Watch glasses have all kinds of uses. They are concave "dishes" that can be used as beaker lids; to hold protists and other invertebrates for viewing under a microscope; or to dissolve materials such as crystals and powders. A watchglass is also very handy for making ice lenses. Fill one with water, freeze it and then repeat. Put the 2 halves together & voila, you have a lens.
Specifications
Safety Disclaimer-Warning
Handle
glassware with care & wear goggles & gloves because:
- Unless you poured it yourself, assume any liquid is hazardous.
- Hot & cold glass looks the same & does not have to be red to cause burns. Unless it was in the freezer, assume it is hot.
- Borosilicate glass will withstand a fair degree of thermal shock but unless your intent is to see if you can make it crack, don't toss recently heated glass into a cold water bath.
- When borosilicate glass breaks, it makes sharp edges like any other kind of glass. Dispose of pieces carefully.
We do not carry any ground glass items but you can buy good quality condensers, adapters, 3 neck flasks, etc. at Organic Glassware in Winnipeg.
 
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