Química Preparativa

 
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Destilación

Principle

In the experiment introduced here, a mixture of water and methylated spirits made up by students themselves is to be separated into its components. The alcohol contained in the mixture will be distilled and collected in a conical flask. The simple distillation apparatus used here ...

 
Detalles

Num.Producto: P1023200

Air- a mixture of the gases oxygen and nitrogen

 
Detalles

Num.Producto: P1133400

Sulfuros - sulfuro de hidrógeno

 
Detalles

Num.Producto: P1140300

Preparing ammonia for experimental purposes

 
Detalles

Num.Producto: P1140800

Preparation of nitric oxide from nitric acid

 
Detalles

Num.Producto: P1141100

Filtro de carbono y su aplicación práctica

 
Detalles

Num.Producto: P1142400

Haloalkanes: Grignard reagent

 
Detalles

Num.Producto: P1151600

CT 35.4

 
Detalles

Num.Producto: P1152000

Aldehídos - reacciones con amoniaco

 
Detalles

Num.Producto: P1153000

Experimento modelo de la destilación fraccionada

Principle

When the model experiment on the distillation of petroleum is conducted using the comprehensive chemistry/biotechnology experiments system, the glass equipment clearly stands out against the dark background of the large-format base plate.  The strong contrast between this ...

 
Detalles

Num.Producto: P1308600

Synthesis of ethyl acetate and butyl acetate

Principle

Carboxylic acids and alcohols can react with esters under suitable conditions. Water forms as a by-product and, under the properly selected reaction conditions, it can be continuously separated by means of a distilling trap (Dean-Stark apparatus). The progress of the reaction can ...

 
Detalles

Num.Producto: P1309100

Determinación de masa molar por la ley de gases ideales

Principle

All gases may be considered, to a first approximation, to obey the ideal gas equation which relates the pressure p, volume V, temperature T  and amount of substance n of a gas. The amount of gas n is expressed as the number of moles and is equal to m / M  where m ...

 
Detalles

Num.Producto: P3010401

Condensation of gases through an increase of pressure and through cooling

Principle

Gases are condensing when they are cooled and at high pressure. In this experiment butane is condensed by cooling it to ca. -15 °C. In the second part of the experiment butane is condensed by compressing it.

Tasks

  1. Condense butane by cooling it under its ...
 
Detalles

Num.Producto: P3011400

Rectificación - determinación del número de bandejas teóri-cas en una columna de destilación

Principle

The separation power of a rectification (fractionating) column can be determined using an appropriate binary mixture whose equilibrium composition is measured in the distillation flask and in the domed glass head of the distillation apparatus. The number of theoretical trays can ...

 
Detalles

Num.Producto: P3031501

Haloalcanos: enlaces de Grignard

Principle

Haloalkanes react with magnesium to the so-called Grignard reagents in accordance with the general formula RMgX. With X = bromide or iodide, the reaction works best. Chlorides are usually more inert and require higher temperatures and longer reaction times for the conversion. ...

 
Detalles

Num.Producto: P3101000

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