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Erlenmeyer Flasks: a Blown Bulb Shaped into a Cone
Ryan Kissinger, NIAID (NIH BioArt 630) · Public domain
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Bubbles

14. Oktoba 2026IT
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Erlenmeyer Flasks: a Blown Bulb Shaped into a Cone

Emil Erlenmeyer's flask of 1860 is a flat-bottomed cone with a straight neck: it can be swirled without spilling, vapour condenses on its sloping walls, and a funnel sits in its neck. Blow a bulb on a tube as for any flask, then shape it into a cone with a paddle while it turns and press the base flat. The picture: an Erlenmeyer flask, drawn by NIAID (NIH BioArt).
Juu
An hour per flask, plus annealing

Maagizo

1

Blow a bulb

Close one end of a tube, gather glass and blow a thick-walled bulb a little larger than the base you want.

Vifaa kwa hatua hii:

Seti ya Mirija ya KiooSeti ya Mirija ya Kioo1 kipande

Zana zinazohitajika:

Kichomeo cha mezani cha kupuliza kiooKichomeo cha mezani cha kupuliza kioo
Miwani ya usalamaMiwani ya usalama
Glavu Zinazostahimili JotoGlavu Zinazostahimili Joto
2

Shape the cone

Reheat the bulb and, turning steadily, press the upper part in with a flat paddle held at an angle while blowing gently, so the sides run straight from the base to the neck.

Zana zinazohitajika:

Kichomeo cha mezani cha kupuliza kiooKichomeo cha mezani cha kupuliza kioo
Marver (bamba la kusukuma kioo)Marver (bamba la kusukuma kioo)
Glavu Zinazostahimili JotoGlavu Zinazostahimili Joto
3

Flatten the base

Soften the bottom and press it flat on the marver so the flask stands level.

Zana zinazohitajika:

Kichomeo cha mezani cha kupuliza kiooKichomeo cha mezani cha kupuliza kioo
Marver (bamba la kusukuma kioo)Marver (bamba la kusukuma kioo)
4

Finish the neck

Cut the tube to neck length, fire-polish and flare the rim slightly with the jacks.

Zana zinazohitajika:

Kalamu ya Kuchora ya AlmasiKalamu ya Kuchora ya Almasi
Kichomeo cha mezani cha kupuliza kiooKichomeo cha mezani cha kupuliza kioo
Jacks (koleo za mfua kioo)Jacks (koleo za mfua kioo)
5

Anneal and mark

Anneal in the kiln and cool slowly. Fill with measured water and scratch rough volume marks.

Vifaa kwa hatua hii:

MajiMaji0.5 lita

Zana zinazohitajika:

TanuruTanuru
Silinda ya kupimiaSilinda ya kupimia
Kalamu ya Kuchora ya AlmasiKalamu ya Kuchora ya Almasi
6

Cone volume

Inapakia daftari la Jupyter…

Vifaa

2
  • 1
    Seti ya Mirija ya Kioo
    1 kipande
    Kishikilia Nafasi
  • 5
    Maji
    0.5 lita
    Kishikilia Nafasi

Zana Zinazohitajika

8

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Chupa ya Erlenmeyer

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Round-Bottom and Florence Flasks Blown from Glass Tube

Round-Bottom and Florence Flasks Blown from Glass Tube

na BubblesIT

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