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Hydrogen Peroxide 3 %: Barium Peroxide in Dilute Sulphuric Acid
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Charlie

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Charlie

14. Oktoba 2026DE
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Hydrogen Peroxide 3 %: Barium Peroxide in Dilute Sulphuric Acid

Thénard first made hydrogen peroxide from barium peroxide; the improved way stirs the peroxide into sulphuric acid, which takes the barium out as insoluble barium sulphate. Titrate the clear liquid with permanganate to find its strength, dilute it to 3 %, the mild antiseptic and bleach, and keep it in a dark bottle. Even 3 % hurts the eyes. The picture: our diagram of the four stages.
Juu
A day

Maagizo

1

Peroxide into cold acid

Grind the barium peroxide to a paste with a little cold water. Stand a beaker of dilute sulphuric acid in ice and stir the paste in a little at a time. Stop while a drop of the liquid still turns blue litmus red: it keeps better slightly acid.

Vifaa kwa hatua hii:

Peroksidi ya bariamuPeroksidi ya bariamu150 g
Asidi ya sulfuriki iliyopunguzwaAsidi ya sulfuriki iliyopunguzwa1 lita

Zana zinazohitajika:

Kinu na mchiKinu na mchi
Mizani ya mizani-mbiliMizani ya mizani-mbili
Bikari ya BorosilikatiBikari ya Borosilikati
Sufuria KubwaSufuria Kubwa
Vipande vya barafuVipande vya barafu
Fimbo ya Kioo ya KukorogaFimbo ya Kioo ya Kukoroga
Karatasi ya litmasiKaratasi ya litmasi
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
2

Filter

Let the white barium sulphate settle and filter it off. The clear liquid is hydrogen peroxide in water.

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

Titrate a sample

Dissolve 3.161 g of permanganate to 1 litre in a volumetric flask. Pipette 1 mL of the peroxide into a flask with some dilute sulphuric acid and run permanganate in from the burette until the first lasting pink. Note the reading (step 5).

Zana zinazohitajika:

Pamanganati ya potasiamu — KMnO4Pamanganati ya potasiamu — KMnO4
Chupa ya ujazoChupa ya ujazo
Pipeti iliyodarajwa (ya Mohr)Pipeti iliyodarajwa (ya Mohr)
Chupa ya ErlenmeyerChupa ya Erlenmeyer
Bureti (ya kioo)Bureti (ya kioo)
Kibano cha maabara (bureti/chupa)Kibano cha maabara (bureti/chupa)
Asidi ya sulfuriki iliyopunguzwaAsidi ya sulfuriki iliyopunguzwa
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
4

Dilute and bottle

Weigh the batch, stir in the distilled water the notebook gives, and keep it cool in a dark, closed bottle.

Vifaa kwa hatua hii:

Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke0.1 lita

Zana zinazohitajika:

Mizani ya mizani-mbiliMizani ya mizani-mbili
Fimbo ya Kioo ya KukorogaFimbo ya Kioo ya Kukoroga
Chupa ya kioo cha kahawiaChupa ya kioo cha kahawia
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
5

Strength and dilution

Inapakia daftari la Jupyter…

Vifaa

3

Zana Zinazohitajika

19

Mchoro huu unatengeneza

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Kishikilia nafasi

Peroksidi ya hidrojeni (3 %)

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Barium Peroxide: Barium Oxide Heated in Air

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Potassium Permanganate: Pyrolusite Fused with Caustic Potash, Turned Purple by Carbonic Acid

Potassium Permanganate: Pyrolusite Fused with Caustic Potash, Turned Purple by Carbonic Acid

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Dilute Sulfuric Acid: Concentrated Acid Poured into Water
Hatari

Dilute Sulfuric Acid: Concentrated Acid Poured into Water

na CharlieDE

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