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Potassium Persulfate by Electrolysis of Potassium Bisulfate
Charlie

Imeundwa na

Charlie

17. Oktoba 2026DE
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Potassium Persulfate by Electrolysis of Potassium Bisulfate

Potassium persulfate, the initiator that starts emulsion polymerisation (PVA glue), is made by electrolysing a cold, concentrated potassium bisulfate solution at about 1 A/dm² on a platinum anode with a graphite cathode. Sulfate is oxidised to persulfate at the anode, and the sparingly soluble salt crystallises out. It is a strong oxidant: keep it away from organic matter. The picture: our diagram of the cell.
Kati
One to several days

Maagizo

1

Make a strong, cold solution

Dissolve the potassium bisulfate in distilled water to a concentrated solution and keep it cold. A dilute solution gives oxygen instead of persulfate.

Vifaa kwa hatua hii:

Bisalfeti ya potasiamuBisalfeti ya potasiamu400 g
Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke1 lita

Zana zinazohitajika:

Tangi la elektrolisisiTangi la elektrolisisi
Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
KipimajotoKipimajoto
Glavu zinazostahimili kemikaliGlavu zinazostahimili kemikali
Miwani ya usalamaMiwani ya usalama
2

Electrolyse at high current density

Use a platinum anode and a graphite cathode. Run about 1 A per dm² of anode; hydrogen comes off at the cathode.

Zana zinazohitajika:

Waya wa platinamuWaya wa platinamu
Elektrodi ya grafitiElektrodi ya grafiti
Chanzo cha nishati ya mkondo wa moja kwa mojaChanzo cha nishati ya mkondo wa moja kwa moja
Tangi la elektrolisisiTangi la elektrolisisi
KipimajotoKipimajoto
3

Collect the crystals

Potassium persulfate crystallises out as it forms. Filter it off, rinse with a little cold distilled water and dry it (our method).

Zana zinazohitajika:

Kifaneli cha Büchner (kauri)Kifaneli cha Büchner (kauri)
Karatasi ya KuchujaKaratasi ya Kuchuja
Trei wazi ya kukaushiaTrei wazi ya kukaushia
Glavu zinazostahimili kemikaliGlavu zinazostahimili kemikali
4

Use as initiator

For emulsion polymerisation, about 0.1–0.5 % is used, usually at 75–95 °C. Store it apart from organic materials.

Zana zinazohitajika:

Mizani ya dijitali ya jikoniMizani ya dijitali ya jikoni
5

Charge and time

Inapakia daftari la Jupyter…

Vifaa

2

Zana Zinazohitajika

11

Mchoro huu unatengeneza

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Kishikilia nafasi

Kianzishi cha persulfati

Free

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Nitric Acid (Aquafortis) from Saltpetre and Oil of Vitriol, Ure 1839
Hatari

Nitric Acid (Aquafortis) from Saltpetre and Oil of Vitriol, Ure 1839

na CharlieDE

Isiyo hai

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Nickel Sheet by Electrowinning from Nickel Sulfate

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na CharlieDE

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