Iodine Flasks

Glass stoppered iodine flask built in funnels make no spill filling and pouring easy. Great pricing on singles, unbeatable savings by the box!

An iodine flask is basically an Erlenmeyer flask with a glass stopper and a collar.

The 250ml iodine flask has solid, not hollow, glass stoppers and form an airtight fit. The collar acts as a spout & makes it easy to refill without spillage.

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Oil and Vinegar Flask Set

Oil and Vinegar Flask Set

SKU: 55254-2P
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   No Glassware Returns

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. Call first if you are unsure of what you need.

If the item is clearly defective, either heavily bubbled, chipped or with really bad markings, send us an image & we will refund you.

Glassware Specifications in Metric Units.    ~25mm/;  25ml/fl. oz.;  25g/oz.
Volume (ml) Height (mm) Diameter-Collar (mm) Diameter-Widest (mm) Weight (g)
100 125±1.5 57.5±2.5 64±1 110±8
250 165±2 57.5±2.5 85±1.5 150±10
500 195±2 57.5±2.5 105±2 225±15


  • linear coefficient of expansion 20-300C: 32.0+/-1.5 x 10-7
  • annealing point 560C+/-10
  • softening point 820C +/-10
  • density 2.23+/-0.02g/cm3
  • The thickness increases from the sides to the bottom.

Safety Disclaimer-Warning

Handle glassware with care & wear goggles & gloves because:

  1. Unless you poured it yourself, assume any liquid is hazardous.
  2. 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.
  3. 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.
  4. When borosilicate glass breaks, it makes sharp edges like any other kind of glass. Dispose of pieces carefully.