SANAA
UREMBO NA USTAWI
UJANJA
UTAMADUNI NA HISTORIA
BURUDANI
MAZINGIRA
CHAKULA NA VINYWAJI
UHANDISI WA KINYUME
SAYANSI
MICHEZO
TEKNOLOJIA
VAZI
Purified Sodium Hydroxide: Caustic Soda Dissolved in Alcohol, Filtered and Dried in Silver
Walkerma (Wikimedia Commons) · Public domain
Charlie

Imeundwa na

Charlie

19. Oktoba 2026DE
6
0
0
0
0

Purified Sodium Hydroxide: Caustic Soda Dissolved in Alcohol, Filtered and Dried in Silver

Commercial caustic soda carries alumina, carbonates, chlorides, phosphates, silicates and sulphates. For analysis, the British Pharmacopoeia of 1898 (quoted in the 1907 US Dispensatory) purified it with alcohol: sodium hydroxide dissolves in alcohol, most of those salts do not, so they are filtered off and the alcohol is evaporated in a silver dish. The result is free of phosphates and sulphates, nearly free of carbonate, but not quite free of alumina. The source gives no quantities, so none are given here. The picture: sodium hydroxide pellets (Walkerma, Wikimedia Commons, public domain).
Kati
A day

Maagizo

1

Dissolve the caustic soda in alcohol

Put commercial caustic soda in a beaker and stir in alcohol until it has dissolved. Caustic soda burns skin and eyes: wear goggles and gloves.

Vifaa kwa hatua hii:

Kaustiki soda (hidroksidi ya sodiamu)Kaustiki soda (hidroksidi ya sodiamu)1 as required

Zana zinazohitajika:

Etanoli ya maabara, 95 %Etanoli ya maabara, 95 %
Bikari ya BorosilikatiBikari ya Borosilikati
Fimbo ya Kioo ya KukorogaFimbo ya Kioo ya Kukoroga
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
2

Filter off what does not dissolve

Filter the solution. The salts that stay behind on the filter are the impurities.

Zana zinazohitajika:

Faneli ya Kioo Yenye BombaFaneli ya Kioo Yenye Bomba
Karatasi ya KuchujaKaratasi ya Kuchuja
Bikari ya BorosilikatiBikari ya Borosilikati
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
3

Evaporate to dryness in a silver dish

Evaporate the filtrate to dryness in a silver dish, adding a little distilled water from time to time as it goes. Caustic soda attacks glass and porcelain, hence the silver. Alcohol vapour catches fire: use an electric hot plate, no flame, in a well-aired place.

Zana zinazohitajika:

Sahani ya FedhaSahani ya Fedha
Sahani ya Kupasha JotoSahani ya Kupasha Joto
Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
4

Bottle the purified sodium hydroxide

The residue is purified sodium hydroxide. It draws water from the air (the source calls it deliquescent), so put it at once into well-stoppered bottles of hard glass. It should show no phosphate or sulphate, at most a trace of carbonate, and it is not quite free of alumina.

Zana zinazohitajika:

Chupa za kioo zenye viziboChupa za kioo zenye vizibo
Glavu za mpiraGlavu za mpira

Vifaa

1

Zana Zinazohitajika

11

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Hidroksidi ya Sodiamu — Daraja la Maabara

Free

138
0

Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Sodium Hydroxide by Causticizing Soda Ash with Slaked Lime

Sodium Hydroxide by Causticizing Soda Ash with Slaked Lime

na CharlieDE

Kemia

24
0
0
0
0
0
Ethanol 95 %: Wine Distilled, Rectified and Dried over Potash

Ethanol 95 %: Wine Distilled, Rectified and Dried over Potash

na CharlieDE

Kikaboni

20
0
0
0
0
0

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.

Majadiliano

(0)

Ingia kujiunga na majadiliano

Inapakia maoni...