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Bismuth Oxide: Subnitrate Boiled with Sodium Hydroxide Solution (British Pharmacopoeia, 1907)
Charlie

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Charlie

28. Oktoba 2026DE
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Bismuth Oxide: Subnitrate Boiled with Sodium Hydroxide Solution (British Pharmacopoeia, 1907)

Boil bismuth subnitrate with sodium hydroxide solution: bismuth hydroxide falls and sodium nitrate stays dissolved. At 100 °C the hydroxide loses its water, leaving bismuth oxide, a dull lemon-yellow powder. Source: The Dispensatory of the United States of America (1907), Bismuthi Oxidum, after the British Pharmacopoeia. Not given: amounts, strength or time; those are stated as not given. The 10 % lye, washing and filter are ours. Picture drawn by Youblob.
Kati
half a day

Maagizo

1

Boil the subnitrate with soda lye

Boil bismuth subnitrate with sodium hydroxide solution (ours: 10 %). Bismuth hydroxide is precipitated; sodium nitrate stays in solution. Not given: amounts and time. Goggles and gloves.

Vifaa kwa hatua hii:

Bismuthi subnitratiBismuthi subnitrati1 as required

Zana zinazohitajika:

Hidroksidi ya sodiamu, myeyusho wa asilimia 10Hidroksidi ya sodiamu, myeyusho wa asilimia 10
Bikari ya BorosilikatiBikari ya Borosilikati
Sahani ya Kupasha JotoSahani ya Kupasha Joto
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za NaitriliGlavu za Naitrili
2

Wash and dry to the oxide

Filter off the precipitate and wash it (ours: with distilled water). Hold it at 100 °C: the hydroxide gives up its water and dull lemon-yellow bismuth oxide remains.

Zana zinazohitajika:

Karatasi ya KuchujaKaratasi ya Kuchuja
Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke
Tanuri la kukaushiaTanuri la kukaushia

Vifaa

1

Zana Zinazohitajika

8

Mchoro huu unatengeneza

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Oksidi ya bismuthi

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Bismuth Subnitrate: Bismuth through Nitrate and Carbonate to the White Powder (USP 1870)
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Bismuth Subnitrate: Bismuth through Nitrate and Carbonate to the White Powder (USP 1870)

na CharlieDE

Viwandani

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Bismuth Oxide: Bismuth Burned at a Red-White Heat in a Muffle (Thorpe 1913)

Bismuth Oxide: Bismuth Burned at a Red-White Heat in a Muffle (Thorpe 1913)

na CharlieDE

Viwandani

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