Used as starch indicator, biological stain and chemical reagent. This iodine is laboratory grade and cannot be used for food or medical purposes. 500ml.
Aluminum Metal (20 gauge sheet) - 12" x 12" x .032"
The Project Planetarium is ideal for individual study projects. Causes of 2 day and night, seasonal changes, phases of the moon, and planet locations are easily understood. The small planetarium model and solar system chart, 22"x17", may be set to show actual positions of the earth, the moon and planets at any given time. Each set includes planetarium, chart and study guide.
Also called glycerin or glycerine, Glycerol is both a colorless and odorless liquid, that is fairly viscous. It is a simple polyol compound, with a triglyceride backbone and 3 hydroxyl groups.
Sodium acetate, lab grade, anhydrous, powder - 500g.
Limewater solution is commonly used for testing the presence of carbon dioxide in gaseous samples in school laboratories, and refining of sugar in a process called carbonatation. 4 liters.
2,6-Dichloroindophenol Sodium salt (indophenol), reagent - 1g
Tin Metal, lab grade, mossy - 100g.
Kit includes 1 each of Test Tube Rack for 6, Test Tube Brush, Test Tube Clamp, Crucible Tongs, Lab Scoop, 6" Spatula and Forceps.
Kit includes 1 each of Test Tube Rack for 6, Test Tube Brush, Test Tube Clamp, Crucible Tongs, Lab Scoop, 6" Spatula and Forceps.
Easy wind-up tapes are marked in inches and feet on one side and mm and cm on the other. Has removeable handle for easy control. Durable casing for years of use.
Easy wind-up tapes are marked in inches and feet on one side and mm and cm on the other. Has removeable handle for easy control. Durable casing for years of use.
If you already own a checker, this replacement electrode will fit any checker.
If you already own a checker, this replacement electrode will fit any checker.
A set of premium quality pH 4.01 and 7.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI77400P is for 5 sachets of pH 4.01 and 5 sachets of pH 7.01 with each containing 20 mL of buffer.
• For use with Checker 1 pH Meter
• Color coded label for easy pH buffer value identification
• Accuracy of +/- 0.01 pH @ 25°C
• Temperature chart of the actual pH value at various temperatures printed on each sachet
A set of premium quality pH 4.01 and 7.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. The HI77400P is for 5 sachets of pH 4.01 and 5 sachets of pH 7.01 with each containing 20 mL of buffer.
A set of premium quality pH 7.01 and 10.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. 5 sachets of pH 7.01 and 5 sachets of pH 10.01 with each containing 20 mL of buffer.
• Color coded label for easy pH buffer value identification
• Accuracy of +/- 0.01 pH @ 25°C
• Temperature chart of the actual pH value at various temperatures printed on each bottle
A set of premium quality pH 7.01 and 10.01 calibration buffer solutions. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet. 5 sachets of pH 7.01 and 5 sachets of pH 10.01 with each containing 20 mL of buffer. Color coded label for easy pH buffer value identification. Accuracy of +/- 0.01 pH @ 25°C. Temperature chart of the actual pH value at various temperatures printed on each bottle
This 24" inflatable writable globe has a white background with outlined countries. The ball may be used over and over again with a wet erase marker (not included) to test your students geography skills.
The 21 plastic fossils and detailed Laboratory Manual in this kit will let your students become practicing paleontologists. Kit conveys importance of fossil study to investigations in geology, history, mapping, and stratigraphic correlation. Grades 7-12.