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Module 3: Heating Under Reflux (Fischer Esterification)

Module 3: Heating Under Reflux (Fischer Esterification)

After 1 hour, turn off the heating mantle and stir plate. Allow the reaction mixture to cool for 10 minutes. Turn off the water after the mixture has cooled. Disassemble the reflux set-up and place the rbf to the side. We will next TLC the mixture, which contains our crude (unpurified) product.

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YR01803 Pocket pH / C / F Meter - Kalstein

YR01803 Pocket pH / C / F Meter - Kalstein

Features. • High-accuracy pocket pH meter with a dual display LCD. • Long-reach pH electrode is suitable for measuring the small volume samples. • 1 to 3 points calibration with automatic recognition for USA and NIST buffers. • Automatic temperature compensation ensures accurate readings over the entire range.

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YR01810 Pocket Conductivity / TDS / Salinity Meter - Kalstein

YR01810 Pocket Conductivity / TDS / Salinity Meter - Kalstein

Features: • Multiparameter pocket conductivity meter is equipped with a dual display LCD. • Platinum conductivity cell provides the quick and reliable measurement results. • 1 to 3 points calibration with automatic recognition for conductivity standards. temperature. • Auto-Read function senses and locks the measurement endpoint.

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Model 270 Manual

Model 270 Manual

For a primer on how to set up a reaction with your temperature controller: See Section 4.4 To use heaters other than heating mantles: See Section 2. Do not use the controller to heat oil baths: See Section 3.2 Appendix I. For polymer synthesis, atypical, expensive, or safety critical reactions: See Appendix II. 1 Enter an Over Temperature Limit.

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Model 360/Timer Manual - Robotics J-KEM Scientific

Model 360/Timer Manual - Robotics J-KEM Scientific

For a primer on how to set up a reaction with your temperature controller: See Section 4.4 To use heaters other than heating mantles: See Section 2. Do not use the controller to heat oil baths: See Section 3.2 For polymer synthesis, atypical, expensive, or …

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Flammable Liquid Handling Precautions Office

Flammable Liquid Handling Precautions Office

Handling Precautions(link is external) . Pouring flammable liquids can generate static electricity. The development of static electricity is related to the humidity levels in the area. Cold, dry atmospheres are more likely to facilitate static electricity. Bonding or using ground straps for metallic or non-metallic containers can prevent static ...

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Oil Baths in Laboratories Environmental Health and Safety

Oil Baths in Laboratories Environmental Health and Safety

Hazards. Hazards associated with the use of oil baths include hot temperatures and fire. Hot oil can cause severe skin burns. Accidental additions of water to a hot oil bath can cause serious splattering. Mineral oil has an obnoxious smell at the elevated temperatures. Reaction flasks immersed in an oil bath can become dangerous slippery.

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Heating Devices - Princeton University

Heating Devices - Princeton University

Heating Devices. Most labs use at least one type of heating device, such as ovens, hot plates, heating mantles and tapes, oil baths, salt baths, sand baths, air baths, hot-tube furnaces, hot-air guns and microwave ovens. Steam-heated devices are generally preferred whenever temperatures of 100 o C or less are required because they do not ...

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laboratory heating mantles do you make the best use of it?

laboratory heating mantles do you make the best use of it?

Heating mantle contains heating mantle with digital temperature controller, heating mantle with stirrer, digital display electric heating mantle, etc. The heating mantle temperature range is RT~300 ℃, the volume range of heating mantle is 50ml ~5000ml. So many types of temperature controlled heating mantle, different glass vessels need to use different volume heating …

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Standard Heating Controls - Prolab Scientific Ltd.

Standard Heating Controls - Prolab Scientific Ltd.

Heating mantles are preferred to Bunsen burners or hot plates for organic liquids. They provide even heating (no hot spots) and ... and each three-place unit contains three. The clamps hold glassware from 1-5/8 - 2 in diameter. ... in monitoring and setup, as well as dual LED displays for process temperature and set point indication. This ...

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Solved How could the setup in the figure below be used

Solved How could the setup in the figure below be used

How could the setup in the figure below be used to re-collect the water added in Part 3? Remember that part 3 contains water and NaCl (salt solution). Please include the specific parts as how water is re-collected from the figure below. Show transcribed image text. Expert Answer.

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Potential use of eucalyptus biodiesel in compressed

Potential use of eucalyptus biodiesel in compressed

Mar 01, 2016 The result of investigation shows that Brake Specific Fuel Consumption (BSFC) for two different samples of B 10 blend of eucalyptus biodiesel is 2.34% and 2.93% lower than that for diesel. Brake Thermal Efficiency (BTE) for B 10 blends was found to be 0.52% and 0.94% lower than that for diesel. Emission characteristics show that Smoke Opacity ...

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ORGANIC LABORATORY TECHNIQUES 10

ORGANIC LABORATORY TECHNIQUES 10

NOTE: In the equipment set up shown in the images below, a heating mantle with a heating controller is being used to heat the round bottom flask. In your equipment set up (or any of the others), the heating mantle and heating controller will be replaced by an engineered (shaped) aluminium block sitting on the top of a stirrer hot plate.

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Procedure Flashcards - Quizlet

Procedure Flashcards - Quizlet

Regardless of the setup of the reflux apparatus, if liquid is circulated through a condenser, the cold water (inlet) should be directed at the top first. ... then one should use a heating mantle. TRUE. Magnetic stirrers provide sufficient agitation to prevent bumping. TRUE. Heating mantles should be plugged directly into an alternating current ...

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Science made alive: Chemistry/Experiments

Science made alive: Chemistry/Experiments

small distillation setup; heating mantle; thermometer which includes the range from 100 C to 200 C; ... Put the flask with the long tube attached in a heating mantle and set this heating mantle to low heat, such that the liquid in the flask just starts simmering. ... At a density of 2.85 gram per ml this makes up for 48.5 grams of ...

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Heating Cooling - Induction

Heating Cooling - Induction

This auction is for aUSED Raydyne Induction Heating System. Condition is UNKOWN. Input Voltage: 480V/3 Phase/60 Cycles/110 Amps. Output Voltage: 40 kW, 450 kHz, Year Built: 1985, Model of Power Supply: EI-40, Serial Number of Power Supply: 41408901-B.

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Study 11 Terms Ochem lab quiz 2 Flashcards Quizlet

Study 11 Terms Ochem lab quiz 2 Flashcards Quizlet

Use a variac. Let your TA check your setup before heating the apparatus, Collect only 1-2 mL per minute. Adjust the variac accordingly. Record the temperature for the first drop and then for each 1 mL of liquid collected thereafter; Do not distill the boiling flask to dryness, Dismantle the system after cooling the glassware to room temperature

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Voltage Control at Thomas Scientific

Voltage Control at Thomas Scientific

Voltage Control found in: Voltage Controller, 0-120V at 10 Amps, OptiChem Heating Mantle Controller, Single Circuit, Variable Output Voltage, OptiChem..

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