Professional lab burner uses either alcohol or smokeless lamp oil for controlled heating applications. Heavy brushed steel is rustproof and hardy. Has adjustment control knob and cool burning vented top. Spillproof design features gasketed fuel chamber and sealed wick (shown at right). This is the top of the line burner for the lab. Item #562M. Normally $19.95. On sale now for $14.95.

Large reservoir stainless steel wickless alcohol burner uses common alcohol to produce a smokeless and residue-free flame. Comes with sealing cap and wick and rubber stopper to prevent evaporation of alcohol when not in use. Uses rubbing alcohol or burning alcohol (available at hardware stores), it is hot enough to boil water, to soften glass tubing for bending, and to generate many kinds of chemical reactions. 3.5" x 3.5" x 4.5". Item 562A. $12.95

Alcohol Burner Set

Wickless alcohol burner above (562A) comes with sealing cap and stainless steel stand and includes the stainless steel mesh screen stand shown below (562B). Burns clean with no residue or smoke. (See specs for item 562A above.) Item #562C. $18.95

Stainless steel lab stand with stainless steel wire mesh. Variety of uses, including positioning retorts (up to 500 ml) and burner stand. 4.5 inches high. Item # 562B. $6.95

A hardy and accurate laboratory thermometer is a necessity. This 10-inch (30 cm), precision thermometer measures the full range from -20 degrees to 110 degrees C. Made to be used in process applications (inserted into flasks for continuous monitoring) or immersed in beakers to spot-check temperatures. Lowest price anywhere on professional thermometers! $4.50 each!

FULL RANGE PH TEST PAPERS

Indispensable for lab work! Simply dip paper wick into liquid or wet surface to measure acidity or alkalinity level. Full range from pH 1-14. Readings in red hues (1-6) indicate acids. For instance, strong acids like sulfuric and nitric test around 1 (red), while weak acids like acetic and carbonic test around 6 (yellow). A pH of 7 (green) is neutral (distilled water). Weak bases like calcium hydroxide test around 8 (blue), while strong bases like sodium hydroxide test around 14 (purple). Also indicates relative hydrogen ion concentration (increases with acidity). Includes full color chart. 100 test strips. Item #SK135. $4.95

Test Tube Holders

Test tube holder and general purpose clamp is over 5 inches long with strong spring steel action. Item #582. $3.95

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Filter Papers (BOX oF 100)

These low-ash, laboratory-grade filter papers are used to separate precipitates and purify compounds by the Separation operation. Intermediate in speed and retention characteristics for use in alchemical operations. These filters fit funnel #560 below and most common lab funnels. Set of 100 round filters. Diameter: 11 cm. Item #541. $9.95

Set of six plastic measuring spoons covers a range popular lab measurements. One each of  0.6 ml, 1.2 ml, 2.5 ml, 5 ml, 7.5 ml, 15 ml. Also marked with English equivalent value in teaspoons. Item #SK323. $2.95

Set of five plastic forceps/tweezers come in very handy in lab work. Flat serrated jaws with tension stop. 5 inches long. Item #SK432. $4.95

Sturdy tongs have serrated jaws with 1 inch flat holder that make them ideal for handling test tubes, beakers, bottles, or crucibles. Item SK231. $6.95

Specially designed brush for cleaning test tubes or bottles features hardy nylon bristles with flared rounded end. 8 inches long. Item #SK209. $3.95

Fully adjustable gas flow and air oxidation makes this the top of line Bunsen burner for lab work. Heavy cast-metal stand with brass and stainless steel parts. Can be used with natural gas or liquid propane. Stands about 6 inches tall. Item #SK311.  $19.95.