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Laboy Glass Short Path Head Vacuum Apparatus with 14/20 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser Lab Glassware

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$54.18

$ 27 .99 $27.99

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About this item

  • Short path design
  • Distillation head
  • With 14/20 joint
  • Made of borosilicate glass
  • Made by hand blowing


Product Description

Short path distillation is a compact purification method of vacuum distillation involving the vapor from the heating flask (a round bottom flask with standard joint)travelling a short distance, often only a few centimeters into the tubing before being condensed.A short path ensures that little compound is lost on the sides of the apparatus.Because it uses a lower boiling temperature, short-path distillation equipment has advantage for separating compounds that are unstable at higher temperatures. It’s also beneficial for purifying small quantities of compound.

The short path distillation head is a key component in a short path distillation apparatus,it is designed with a very short path with thermometer joint for vapor passing from the heating flask to a connected condenser part.The condenser part on the head is very short too comparing to the liebig condenser in a conventional distillation apparatus.The short path distilling usually takes place in vacuum,there is an extra glass hose connection designed at the end of the condenser part for vacuum purpose.

In a short path distillation,a distilling head is usually inserted into a distillation flask(round bottom flask)where the vapor is from with the lower male joint.The upper 10/18 thermometer joint accommodates a glass thermometer with 10/18 joint to monitor the temperature.The male joint at the end of the condenser part is used to connect a cow type receiver to distribute the distillates into receiving flasks.With three hose connections on the condenser parts accommodating rubber tubing for water and vacuum.With male joints at side and bottom

Made of high quality borosilicate glass 3.3 having very low coefficients of thermal expansion for resistance to heat, and a very high resistance to chemical attack.Annealed at 800 degree Celsius ,can be heated directly in an open flame and can withstand typical laboratory thermal variations in Chemistry processes like heating and cooling.

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus ser

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus with 14/20 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser

With a 14/20 standard male joint at top used for fitting a distillation flask(round bottom flask or pear shaped flask),the other 14/20 male joint at side to connect a cow type distillation receiver for distributing distillate into three receiving flasks.With 10/18 female joint at top accommodating a glass thermometer with 10/18 joint and 25mm immersion.With three 8mm glass hose connections on the condenser part,two for water in and out, one for vacuum. With Vigreux.

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus Liebig Condenser

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus with 19/22 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser

With a 19/22 standard male joint at top used for fitting a distillation flask(round bottom flask or pear shaped flask),the other 19/22 male joint at side to connect a cow type distillation receiver for distributing distillate into three receiving flasks.With 10/18 female joint at top accommodating a glass thermometer with 10/18 joint and 25mm immersion.With three 8mm glass hose connections on the condenser part,two for water in and out, one for vacuum. With vigreux.

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus Liebig Condenser

Laboy Glass Short Path Distillation Head with Vigreux Vacuum Distillation Apparatus with 24/40 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser

With a 24/40 standard male joint at top used for fitting a distillation flask(round bottom flask or pear shaped flask),the other 24/40 male joint at side to connect a cow type distillation receiver for distributing distillate into three receiving flasks.With 10/18 female joint at top accommodating a glass thermometer with 10/18 joint and 50mm immersion.With three 8mm glass hose connections on the condenser part,two for water in and out, one for vacuum. With vigreux.

Laboy Glass Short Path Distillation Head Vacuum Distillation Apparatus Liebig Condenser

Laboy Glass Short Path Distillation Head Vacuum Distillation Apparatus with 14/20 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser Lab Glassware

With a 14/20 standard male joint at top used for fitting a distillation flask(round bottom flask or pear shaped flask),the other 14/20 male joint at side to connect a cow type distillation receiver for distributing distillate into three receiving flasks.With 10/18 female joint at top accommodating a glass thermometer with 10/18 joint and 25mm immersion.With three 8mm glass hose connections on the condenser part,two for water in and out, one for vacuum.

Laboy Glass Short Path Distillation Head Vacuum Distillation Apparatus Liebig Condenser

Laboy Glass Short Path Distillation Head Vacuum Distillation Apparatus with 24/40 Lower Inner Joints & 10/18 Thermometer Joint Liebig Condenser Lab Glassware

With a 24/40 standard male joint at top used for fitting a distillation flask(round bottom flask or pear shaped flask),the other 24/40 male joint at side to connect a cow type distillation receiver for distributing distillate into three receiving flasks.With 10/18 female joint at top accommodating a glass thermometer with 10/18 joint and 50mm immersion.With three 8mm glass hose connections on the condenser part,two for water in and out, one for vacuum.

US Standard Size Joint Will Fit into European Standard Size Joint

Standard Taper Ground Glass Joints are interchangable.For either frosted, presicon-ground standard taper joints (same size),the inner ground surfaces (male joint) make a good seal with the outer(female joint)). The joint size is described by the form A/B. The first number A represents the outer diameter (OD) in millimeters (mm) at the widest point of the inner (male) joint and the second number B represents the length of the joint. For example, a 14/20 joint is 14 mm wide at the top (the widest part) and is 20 mm in longth. The joint has a standard taper 1:10, any two joints (male and female) with the same outside diameter (A)can fit into each other ,no matther how lenght the joints are. For example, a 24/40 (US standard size) joint on a condenser will fit into a 24/29 (European standard size)flask but the ground glass joint will protrude (40 - 29) 11mm into the flask.

Heavy Wall Design,Durable and Reusable

Laboy glass ware are all made of high quality boroslicate glass according to ASTM E438,heavy wall design,durable and reusable.

Protection of Products in Transit

  1. Check the integrity of the product before packaging.
  2. Bubble wrap tightly around the product.
  3. Fill the space in the packing box with pearl cotton.

Material: Borosilicate Glass(PYREX Glass)

Silicon content >80%
Strain and Temperature 520℃
Annealing temperature 800℃
Index of refraction 1.47
Transmittance ≧90％
Elastic modulus E 67KNmm-2
Tensile strength 40-120Nmm-2
Processing temperature(104dpas 1220℃
Coefficient thermal expansion (20-300℃) (3.3±0.1)×10-6/K -1
Poisson's ratio μ 0.2
Density（20℃） 2.23g/cm3
Specific heat 0.9Jg-1K-1
Thermal conductivity (20-100℃）1.2Wm-1K-1
Water resistance 1 Level
Acid resistance 1 Level
Alkali resistance 2 Level

FreddyT
Reviewed in the United States on September 25, 2016
This unit is small enough to fit in your hand. The piece I received was well designed and all the glass joints fit nicely. The long neck from the condensor tube works great for my application.