Page 73 - Demo

“Your Safer Source for Science”
Corks, Accessories
71
Corks, Accessories, continued
Cork Borer Sharpener
A must for all labs using cork borers. A handy tool to resharpen cork borers. Will sharpen bore sizes from 5 to 24 mm. Sharpener is solid brass and is mounted on a wooden handle.
Cork Borer Set
For boring holes in rubber stoppers or corks. Plated brass tubing forms the borer and each borer has an individual plastic handle. A punch is provided with each set. The 6-borer set covers range 4.8 to 12.7 mm. The 12-borer set covers range 4.8 to 20.2 mm.
Cork/Stopper Organizer
See page 228.
Cotton, Balls, Swabs and Roll
See page 4.
Crate, Laboratory
Unique crate offers many possibilities: transport chemicals, carry glassware, help organize apparatus shelf storage, contain entire student lab or demonstration, and store books and lab manuals. Will not rust, corrode or warp! Collapsed Size: 21" x 14" x 23⁄4" deep. Opened Size: 21" x 14" x 103⁄4" deep.
Crucibles
Crucible, Porcelain, High Form, with Cover,
Economy Choice
These low-cost crucibles with covers work well for drying or dehy- dration experiments. For high temperature heating (>800 °C) such as magnesium combustion, we recommend using the crucibles listed below.
Cork Borer, Set of 6 AP8326
Cork Borer Sharpener AP1882
Cork Borer, Set of 12 AP1883
Catalog No.
Description
Price/Each
AP1882
Cork Borer Sharpener
$46.05
Catalog No.
Description
Price/Set
AP8326
Cork Borer, Set of 6
$30.70
AP1883
Cork Borer, Set of 12
66.85
Catalog No.
Description
Price/Each
AP1666
Crate, Laboratory
$41.70
See free video at flinnsci.com.
Crucible, Porcelain, High Form, with Cover, Economy Choice AP5358, etc.
CRUCIBLES continued on next page.
Crate, Laboratory AP1666
Catalog No.
Description
Capacity
Price/Each
Price/Pkg.
Price/Case
AP5358
Crucible, Porcelain, High Form, with Cover, Economy Choice
10-mL
$2.65
$30.72/12
$111.15/45
AP5359
15-mL
2.80
32.64/12
118.80/45
AP5360
30-mL
3.30
38.40/12
139.50/45
AP5361
50-mL
3.80
22.14/6
57.28/16
Safer Method for Inserting Glass Tubing into Rubber Stoppers
A safe and convenient way for inserting glass tubing and thermom- eters into rubber stoppers is to insert a cork borer (AP8848), which just fits over the item to be inserted into the rubber stopper. Thread the tubing or thermometer through the cork borer, and then remove the cork borer.
To remove thermometers or tubing from rubber stoppers, just reverse the process. Insert a cork borer into the rubber stopper around
the tubing or thermometer, pull out the tubing and remove the cork borer.
Lubricating the cork borer with a little silicone grease aids in the insertion and leaves a little residue inside the rubber stopper that helps when you try to remove the item at a later time.
Special thanks to Lance Knudson, Romulus Senior High School in Romulus, Michigan, for sending us this idea.
Safety Tip