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Bunsen Burner: Central Gas Jet, Air Holes and Mixing Tube (Roscoe & Schorlemmer, Treatise on Chemistry I, 1905)
The laboratory gas burner. Gas from a hose comes out of a small central jet in a block on a heavy base; as it rushes up the tube above, it draws air in through holes in the block, and the mixture burns at the top with a hot, smokeless, pale blue flame of two cones. Close the holes and it burns with an ordinary yellow luminous flame.
Result: a burner giving a hot non-luminous flame for laboratory heating.
Source: H. E. Roscoe and C. Schorlemmer, A Treatise on Chemistry, vol. I (1905), §§ 462-463, Figs. 188-189. Unknown: materials and sizes. Picture: the book's Figs. 188-189.
Mwanzo
Unknown
Maagizo
1
1
Make the base, block and jet
Make the base, block and jet
Make a heavy round base. On it fix a block with a small central jet pointing straight up, a side nozzle for the gas hose leading into the jet, and holes through the block's sides round the jet for air. Not given: materials, sizes, the jet bore.
Vifaa kwa hatua hii:
Metali isiyojulikana1 base, block, jet, nozzleZana zinazohitajika:
Kereza ya Chuma
Kekee cha mkono
Vipimo visivyojulikana2
2
Fit the tube
Fit the tube
Fit an upright tube on the block over the jet and the air holes, so the gas passes up it unburnt and draws in air through the holes. Not given: its length and bore.
Vifaa kwa hatua hii:
Metali isiyojulikana1 burner tubeZana zinazohitajika:
Seti ya kukata nyuzi za skrubuKereza ya Chuma3
3
Light and use it
Light and use it
Push the gas hose onto the nozzle, turn on the gas and light it at the top of the tube. With the air holes open the flame is non-luminous, pale blue and much hotter, with an inner and an outer cone; with them closed it is luminous. With too much air it burns unsteadily and the inner cone turns green; more still and the flame strikes back down the tube and burns at the jet, giving off an unpleasant smell of acetylene: turn off and relight.
Zana zinazohitajika:
Bomba la hewaVifaa
1- 1 burner tubeKishikilia Nafasi
Zana Zinazohitajika
5- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Vifaa vya Michoro Iliyounganishwa
Mchoro huu unatengeneza
CC0 Umma Wote
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Saidia Mtengenezaji kwa kununua bidhaa kupitia Mchoro wao ambapo wanapata Kamisheni ya Mtengenezaji iliyowekwa na Wachuuzi, au unda marudio mapya ya Mchoro huu na uiunganishe kama kiungo katika Mchoro wako kuchangia mapato.