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Technical data


Boiling point diagram of a binary mixture

Article no: P3030401

Principle

A boiling point diagram shows the boiling points of a binary mixture as a function of the vapour / liquid equilibrium of the mixture at constant pressure. The boiling points of various mixtures of methanol and chloroform are measured and the composition of the liquid phases are determined using refractometry and a calibration curve.

Benefits

  • Important basic experiment for distillation
  • Excellent for the introduction of refractometry

Tasks

  1. Determine the refractive indices of the pure components and about 10 different mixtures of known composition.
  2. Plot the boiling point diagram of the binary mixtures of methanol and chloroform.

Learning objectives

  • Fundamentals of distillation
  • Equilibrium diagram
  • Chemical potential
  • Activity coefficient
  • Raoult's law

 

Additional necessary

  • Chloroform

Scope of delivery

Retort stand, h = 750 mm 37694-00 2
Universal clamp 37715-01 2
Right angle boss-head clamp 37697-00 2
Burette clamp, roller mount., 2 pl. 37720-00 1
Immersion thermostat Alpha A, 230 V 08493-93 1
External circulation set for thermostat Alpha A 08493-02 1
Bath for thermostat, makrolon 08487-02 1
Abbe refractometer 35912-00 1
Temperature meter digital, 4-2 13618-00 1
Sheath Thermocouple, NiCr-Ni, Type K, -40°C ... +1000°C 13615-06 1
Heating mantle f. roundbottom flask, 250ml 49542-93 1
Clamp for heating mantle 49557-01 1
Power regulator 32288-93 1
Round bottom flask, 250 ml, 2-neck, IGJ 19/26 35843-05 2
Dimroth condenser MAU-26525500 1
Column head, with stopcock, ST 19/26 35919-01 1
Stopper, IGJ 19/26,glass,clear 41252-10 1
Clamp f.ground joint,plastic,NS19 43614-00 3
Teflon sleeve IGJ 19, 10 pcs 43616-00 1
Protective sleeves f.temp.probe,2 11762-05 1
Rubber hose, various diameters 39282-00 5
Burette, lateral stopcock, Schellbach, 50 ml MAU-24022024 2
Erlenmeyer flasks, Boro, narrow neck, various sizes 46141-00 11
Rubber stoppers, without bore, various diameters 39256-00 11
Beakers, Boro, high form, various sizes 46026-00 2
Pasteur pipettes, 250 pcs 36590-00 1
Rubber caps, 10 pcs 39275-03 1
Funnels (glass), Boro, various sizes 34457-00 3
Boiling beads, 200 g 36937-20 1
Water jet pump, plastic 02728-00 1
Laboratory pen, waterproof, black 38711-00 1
Methanol 500 ml 30142-50 1
Glycerol, 250 ml 30084-25 1
Hose clamp for 8-12 mm diameter 41000-00 14
Rubber hose, various diameters 39290-00 1
Tubing connector, ID 6-10mm 47516-01 2
Universal power supply, 600mA 3/4.5/5/6/7.5/9/12V, incl. 9 adaptors 11078-99 1

PHYWE Systeme GmbH & Co. KG
Robert-Bosch-Breite 10 – 37079 Göttingen – Germany
www.phywe.com