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Solid Carbon Dioxide: Liquid Let Out into a Woollen Bag and Pressed in a Wooden Mould (Landolt, Thorpe 1912)
Dry ice without a machine: when liquid carbon dioxide is suddenly let out of its bottle, part of it boils off at once and the cold freezes the rest. Landolt caught the snow in woollen bags and pressed it into blocks in conical wooden moulds.
Solid carbon dioxide is a white, snow-like mass that can lie in the air for some time without much loss; a thermometer pushed into it reads -79 °C.
Not given: amounts, yield, and the sizes of bags and moulds.
Source: E. Thorpe, Dictionary of Applied Chemistry vol. I (1912), Carbon, pp. 670-671, after Landolt, Ber. 17, 309. Picture: KarolinaHalatek, Wikimedia Commons, CC BY-SA 4.0.
Kati
Unknown
Maagizo
1
1
Let the liquid out into a woollen bag
Let the liquid out into a woollen bag
Take liquid carbon dioxide in its iron or steel bottle (Thorpe: bottles of 8 kg, about 4000 litres of gas). Let the liquid out freely into a woollen bag. Part of it vaporises at once and escapes through the cloth; the cold this makes freezes the rest into a white, snow-like solid that stays in the bag.
Vifaa kwa hatua hii:
Kaboni dioksidi kiowevu1 amount not givenZana zinazohitajika:
Mtungi wa gesi yenye shinikizo
Mfuko wa sufu2
2
Press into blocks
Press into blocks
Fill the loose solid into a conical wooden mould and compress it with a wooden piston to a firm block.
Zana zinazohitajika:
Kalibu ya mbao ya umbo la koni yenye pistoniVifaa
1- 1 amount not givenKishikilia Nafasi
Zana Zinazohitajika
3- Kishikilia Nafasi
- Kishikilia Nafasi
- Kishikilia Nafasi
Mchoro huu unatengeneza
CC0 Umma Wote
Mchoro huu umetolewa chini ya CC0. Uko huru kunakili, kubadilisha, kusambaza, na kutumia kazi hii kwa madhumuni yoyote, bila kuomba ruhusa.
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.