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Flasks

Laboratory flasks are vessels (containers) which fall into the category of laboratory equipment known as glassware. Flasks come in a number of shapes and a wide range of sizes. Laboratory flask sizes are specified by the volume they can hold, typically in metric units such as milliliters or liters. Measuring flasks are made from borosilicate glass. They are available with or without socket, stopper or even screw caps.

Flasks can be used for making solutions or for holding, containing, collecting, or sometimes volumetrically measuring chemicals, samples, solutions, etc. for chemical reactions or other processes such as mixing, heating, cooling, dissolving, precipitation, boiling (as in distillation), or analysis.

The types offered by us include the following:

Flasks Volumetric

Erlenmeyer Conical Flask with plain neck

Erlenmeyer Conical Flask with stopper neck

Round Bottom flask single or with multi necks

Flat bottom flasks

Iodine flask

Kjeldhal flask

Flask Volumetric

Flask Volumetric

Volumetric flask is a piece of laboratory glassware used in analytical chemistry for the preparation of solutions. It is made of Borosilicate glass and consists of a flat bottomed bulb with a long neck, usually fitted with a stopper. The stopper is made from a chemically resistant plastic such as polypropylene or glass stopper is also given. The neck has a single ring graduation mark and a label. The label shows the nominal volume, tolerance, calibration temperature, class, relevant manufacturing standard and logo. The Amber Glass Colored Flask are also provided for handling light sensitive compounds such as silver nitrate.

We provide volumetric flasks generally in two different standards. The higher standard flasks (Class A) are made with a more accurately placed graduation mark, and have a unique serial number. Where this is not required, a lower standard (Class B) is used for qualitative or educational work. Compiles with ISO: 1042

Flask Volumetric (Measuring) "JSGW" with interchangeable stopper polypropylene or glass, accuracy as per Class 'A'Catalog. No. 62

Catalog. No. Capacity Tolerance Neck
ml. ± ml. Size
62/1 * 1 0.01 10/15
62/2 * 2 0.015 10/15
62/3 5 0.025 10/15
62/4 10 0.025 10/15
62/5 25 0.04 10/15
62/6 50 0.06 10/15
62/7 100 0.1 14/15
62/8 200 0.15 14/15
62/9 250 0.15 14/15
62/10 500 0.25 19/20
62/11 1000 0.4 19/20
62/12 2000 0.6 24/25
* 1 ml. and 2 ml. Volumetric Flasks are of Test Tube shape.Note: Above flasks are also available in Amber Color.

Flask

Flask

Flask Volumetric (Measuring) "JSGW" With Interchangeable Stopper, Accuracy As Per Classes B
Catalog. No. 64

Catalog. No. Capacity Tolerance Neck

ml. ± ml. Size
64/1 * 1 0.02 10/15
64/2 * 2 0.03 10/15
64/3 5 0.05 10/15
64/4 10 0.05 10/15
64/5 25 0.08 10/15
64/6 50 0.12 10/15
64/7 100 0.2 14/15
64/8 200 0.3 14/15
64/9 250 0.3 14/15
64/10 500 0.5 19/20
64/11 1000 0.8 19/20
64/12 2000 1.2 24/25

* 1 ml. and 2 ml. Volumetric Flasks are of Test Tube shape.Note: Above flasks are also available in Amber Color.

Erlenmeyer Conical Flask With Plain Neck

Erlenmeyer Conical Flask with Plain Neck

An Erlenmeyer flask, commonly known as a conical flask or E-flask, is a widely used type of laboratory flask which features a flat base, a conical body, and a cylindrical neck.
The Erlenmeyer flask is usually marked on the side (graduated) to indicate the approximate volume of their contents, and has a spot of white enamel where it can be labeled with a pencil.

  • Manufactured from Borosilicate glass for highest resistance to chemical corrosion.
  • White enamel graduation and marking spot
  • Reinforced rims for extra strength and resistance to impact fracture.

Flasks Erlenmeyer's, "JSGW", Conical, Approx. graduation, Narrow mouth.
Catalog. No. 183
Catalog No. Capacity Graduation
  ml. Interval, ml.
183/1 5
183/2 10
183/3 25
183/4 50
183/5 100 25
183/6 150 25
183/7 250 50
183/8 500 100
183/9 1000 200
183/10 2000 500
183/11 3000 500
183/12 5000 500
Note : Flasks 5ml to 50ml capacity are ungraduated.

Flasks Conical, "JSGW", With Interchangeable Stopper

Flasks Conical, "JSGW", with interchangeable stopper

Catalog. No. 181

Catalog No. Capacity Neck Size
  ml. 19/23
181/1 25 19/23
181/2 50 24/29
181/3 100 24/29
181/4 150 24/29
181/5 250 24/29
181/6 500 24/29
181/7 1000 29/32
181/8 2000 34/35

Note: Above flasks are also available in Amber Color.

Round-Bottom Flasks

Round-Bottom Flasks

Round-bottom flasks are types of flasks having spherical bottoms used as laboratory glassware, mostly for chemical or biochemical work (for heating purpose). Made from heat-resistant borosilicate glass. Two or three-necked flasks are common as well. Round bottom flasks come in many sizes, from 5 ml to 20 L, with the sizes usually inscribed on the glass. In pilot plants even larger flasks are encountered.

Flasks Boiling, Round Bottom, "JSGW"Catalog. No. 188

Catalog No. Capacity
ml.
1027/1 5
1027/2 10
1027/4 25
1027/5 50
188/1 100
188/2 150
188/3 250
188/4 500
188/5 1000
188/6 2000
188/7 3000
188/8 5000
188/9 10000
188/10 20000

Flasks Boiling, Flat Bottom "JSGW"

Flasks Boiling, Flat Bottom "JSGW"

  • Flat base allows use with hotplates.
  • Made from Borosilicate glass for highest resistance to thermal shock and chemical corrosion.
Catalog. No. 189
Catalog No. Capacity
 - ml.
189/1 100
189/2 150
189/3 250
189/4 500
189/5 1000
189/6 2000
189/7 3000
189/8 5000
189/9 10000
189/10 20000

Flasks Round Bottom

Flasks Round Bottom

Flasks Round Bottom, Flat Bottom "JSGW", Short Or Medium Neck With Socket
Catalog. No. 165

Catalog No. Catalog No. Capacity Socket
 
ml. size
165/3 166/3 25 14/23
165/5 166/5 50 19/26
165/9 166/9 100 24/29
165/15 166/15 250 24/29
165/16 166/16 250 29/32
165/18 166/18 500 24/29
165/19 166/19 500 29/32
165/20 166/20 1000 24/29
165/21 166/21 1000 29/32
165/23 - 2000 24/29
Note : The Above flasks can also be supplied with different socket sizes, multinecks and capacities.

Iodine Flasks

Iodine Flasks

  • For the determination of iodine.
  • Flask has ground socket and cup shaped top for liquid seal.
  • Stopper has extended handle which projects well above the liquid seal.

Flasks Iodine, "JSGW", with funnel shaped cup and stopper.Catalog. No. 182
Catalog No. Capacity
  ml.
182/1 100
182/2 250
182/3 500
182/4 1000

Kjeladhl Flasks

Kjeladhl Flasks

  • Suitable for the determination of nitrogen etc.
  • Manufactured from Borosilicate glass
  • Kjeldahl flasks are long neck
  • Withstands high temperature
  • Resistance to chemical corrosion

Flasks Kjeladhl, "JSGW", Round Bottom, long neckCatalog. No. 184
Catalog No. Capacity
  (ml.)
184/1 10
184/2 30
184/3 50
184/4 100
184/5 300
184/6 500
184/7 800

Flasks Kjeldahl, "JSGW",Round Bottom,long neck,with Socket.
Catalog. No. 170
Catalog No. Capacity Socket
  ml.  
170/1 50 19/26
170/2 100 19/26
170/3 100 24/29
170/4 300 24/29
170/5 500 24/29
170/6 800 24/29
170/7 800 29/32

To,Jain Scientific Glass Works

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