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Steam Distillation of Cinnamon - Flinn Sci

Steam Distillation of Cinnamon - Flinn Sci

9. Plug the heating mantle into the variable transformer and turn on the power to begin heating the flask. 10. When the water in the flask boils, the vapor will rise in the distillation appa-ratus and condense in the condenser. The liquid will collect in the receiving flask. 11. Continue distilling the mixture for 45 minutes, until about 30 mL ...

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Ochem 1 lab final Flashcards - Quizlet

Ochem 1 lab final Flashcards - Quizlet

Another melting point trial of the same solid is then carried out. In the second trial, the temperature is increased rapidly to 37.0 C, and then the rate of heating is decreased. The first drop of liquid in the sample appears at 46.7 C, the sample is completely liquid at 48.3 C, and the heating is stopped at 51.0 C.

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ORGANIC LABORATORY TECHNIQUES 10

ORGANIC LABORATORY TECHNIQUES 10

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. This is a more modern version of a heating mantle with some distinct benefits. Distillation of a Pure Liquid

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Safe Use of Solvent Stills - Kent State University

Safe Use of Solvent Stills - Kent State University

between the heating mantle and the still pot. Secure the distillation apparatus to a frame to prevent damage, breakage or tipping. Turn on the heating mantle to a setting appropriate for the solvent. Because temperature control for a heating mantle varies somewhat, it’s best to start at a lower setting and observe the set-up for awhile to make

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Experiment 11: Dehydration of Cyclohexanol

Experiment 11: Dehydration of Cyclohexanol

Clamp the flask and place a heating mantle under it. 2. Place 2-3 boiling chips in the reaction flask, and assemble a fractional distillation apparatus using a packed column. Have your instructor check your apparatus to be sure it is correct before going further. 3. Turn on the power to the VARIAC, set it to 90-95 and heat the reaction mixture.

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Muffle furnace safe use method and precautions

Muffle furnace safe use method and precautions

Dec 30, 2019 2. When the muffle furnace is heated, the furnace jacket will also become hot. Keep the furnace away from flammable materials and keep the outside of the furnace easy to dissipate heat. 3. When doing the ashing test, be sure to carbonize the sample on the electric furnace before putting it in the ashing furnace to prevent the accumulation of ...

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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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A SN1 Reaction: Synthesis of tert-Butyl Chloride

A SN1 Reaction: Synthesis of tert-Butyl Chloride

heating mantle or in a water / oil bath over a heating plate, not touching the heating equipment to avoid over-heating during the distillation. All the glass jointware should be properly adjusted avoiding any vapour leakage, and the condenser must be properly fixed. After everything set up – figure SM 2.1.1.1 - make sure the temperature can be

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FlowSorb III 2305/2310 - Micromeritics

FlowSorb III 2305/2310 - Micromeritics

Intended Use and Precautions FlowSorb III . Dewar. Always handle dewars with care. Any product incorporating a vacuum is a potential safety hazard and should be treated with caution. Always observe the precautions listed below. We recommend the following be observed when handling dewars containing lique- fied gases:

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Complexes Of Cobalt In Different Metal Oxidation State

Complexes Of Cobalt In Different Metal Oxidation State

Jan 01, 2015 Cobalt usually exists in two oxidation stable states usually the +2 and +3 and can also be in the form of a tetrahedral arragement and octahedral in the case of the Cobalt (II) oxidation state . Co (III) oxidation state can only form an octahedral arragement. Co (II) is one of the transition metals which can form tetrahedral complexes more easily .

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The Dehydration of Alcohols Experiment - Odinity

The Dehydration of Alcohols Experiment - Odinity

Jan 12, 2018 Discussion: Dehydration of an alcohol is an elimination reaction based on states of equilibrium; therefore, the yield of the final products will never be 100%. Provided that the initial mass of cyclohexanol was 9.84 g while the final product of cyclohexene was only 2.43 g, the 30.1% yield is expected. The lesser yield was due to a multitude of ...

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Safety in the Laboratory Chemistry Tutorial - AUS-e-TUTE

Safety in the Laboratory Chemistry Tutorial - AUS-e-TUTE

Keep the substance away from naked flames, for example, use a water bath, an oil bath, a heating mantle or hot plate to heat the substance safely. Pictogram Hazard Substance is Risk/hazard is Examples Typical Safety Precautions ; GHS03:Oxidising ⚛ oxidising solid ⚛ oxidising liquid . ⚛ oxidising gas

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Aluminum Heating Mantles - Cole-Parmer

Aluminum Heating Mantles - Cole-Parmer

leave any heating apparatus unattended during operation. AVOID SPILLAGES: Always fill the glassware / vessel away from the heating mantle. Only introduce a pre-filled, clean, wiped-dry flask into the heating mantle. If spillage does occur, disconnect unit from the power supply and follow instructions in the Servicing and Repair section.

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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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2L Digital Mantle Summit Research

2L Digital Mantle Summit Research

This is a 2 Liter digital magnetic timing heating mantle. Maximum temperature of 380C and can heat a 50-2000ml standard or non-standard reaction flask. Comes additionally with 19inch vertical rod, (2) extended thermo probes (16inches), magnetic pill (1 1/8 inch) and vertical rod clamp. Power supply: 110v/60Hz. Stirring volume: 2000ml.

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Esters and Esterification Chemistry Tutorial - AUS-e-TUTE

Esters and Esterification Chemistry Tutorial - AUS-e-TUTE

Turn on the heating mantle to achieve a gently boiling of the reaction mixture. Reflux the mixture for 30 minutes. Turn off the heat and allow the mixture to cool. Note: your round bottom flask now contains some ester (the desired product), as well as water, unreacted alcohol, unreacted carboxylic acid, and sulfuric acid.

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What are some of the precautions I need to exercise

What are some of the precautions I need to exercise

What are some of the precautions I need to exercise while making a solution of sulfuric acid and phosphoric acid ? ... You can also use a heating mantle (usually with a …

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