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Rubidium: Rubidium Chloride Heated with Calcium in an Iron Boat in Vacuum (Hackspill, Thorpe 1912)
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1. Novemba 2026DE
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Rubidium: Rubidium Chloride Heated with Calcium in an Iron Boat in Vacuum (Hackspill, Thorpe 1912)

Calcium takes the chlorine from rubidium chloride when heated in vacuum, and the rubidium, being very volatile, distils away from the boat. Result: silver-white rubidium (sp. gr. 1.52, melts at 38.5 °C). It oxidises fast in air and burns in water. Source: Thorpe, Dictionary of Applied Chemistry vol. 4 (1912), p. 596, after Hackspill (Compt. rend. 1905). Not given: amounts and temperature. Picture drawn by Youblob.
Juu
1 day

Maagizo

1

Charge the iron boat

Put rubidium chloride and metallic calcium in an iron boat. Ours: set the boat in a porcelain tube.

Vifaa kwa hatua hii:

Kloridi ya rubidiamuKloridi ya rubidiamu1 as required

Zana zinazohitajika:

KalisiKalisi
Mashua ya chumaMashua ya chuma
Mrija wa KaureMrija wa Kaure
2

Heat in vacuum

Evacuate and heat. Ours: a vacuum pump and a tube furnace.

Zana zinazohitajika:

Pampu ya utupuPampu ya utupu
Tanuru ya MrijaTanuru ya Mrija
3

Distil off the metal

Distil the rubidium off. Ours: let it condense in the cool end of the tube and keep it under kerosene.

Zana zinazohitajika:

Mrija wa KaureMrija wa Kaure
KerosiniKerosini

Vifaa

1

Zana Zinazohitajika

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  • 1
    Kalisi
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  • 1
    Mashua ya chuma
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  • 13
    Mrija wa Kaure
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  • 2
    Pampu ya utupu
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    Kishikilia Nafasi
  • 2
    Tanuru ya Mrija
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  • 3
    Kerosini
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Rubidiamu

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Rubidium Chloride: Lepidolite Lithia Residue Parted with Platinic Chloride (Bunsen, Roscoe 1913)
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Rubidium Chloride: Lepidolite Lithia Residue Parted with Platinic Chloride (Bunsen, Roscoe 1913)

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Calcium: Anhydrous Calcium Iodide Reduced with Sodium in a Screwed Iron Crucible (Moissan, Thorpe 1912)

Calcium: Anhydrous Calcium Iodide Reduced with Sodium in a Screwed Iron Crucible (Moissan, Thorpe 1912)

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