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Sodium Pyrophosphate: Disodium Phosphate Heated to 300 °C
Charlie

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Charlie

20. Oktoba 2026DE
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Sodium Pyrophosphate: Disodium Phosphate Heated to 300 °C

Sodium pyrophosphate is a white salt that dissolves to an alkaline solution. Thorpe's Dictionary (1913) makes it in two easy stages: neutralise phosphoric acid with soda until alkaline and crystallise disodium phosphate, then heat the dried salt to 300 °C, when it gives off water and turns into the pyrophosphate. The picture: our diagram.
Mwanzo
1 day

Maagizo

1

Phosphoric acid and soda

Add sodium carbonate to phosphoric acid diluted with water until the solution is alkaline. Filter.

Vifaa kwa hatua hii:

Asidi ya fosforiki (85 %)Asidi ya fosforiki (85 %)1 kipande
Kabonati ya Sodiamu (Majivu ya Soda)Kabonati ya Sodiamu (Majivu ya Soda)1 kipande

Zana zinazohitajika:

Maji yaliyosafishwa kwa mvukeMaji yaliyosafishwa kwa mvuke
Karatasi ya kuonyesha pHKaratasi ya kuonyesha pH
Bikari ya kioo inayostahimili jotoBikari ya kioo inayostahimili joto
Faneli ya Kioo Yenye BombaFaneli ya Kioo Yenye Bomba
Karatasi ya KuchujaKaratasi ya Kuchuja
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
2

Crystallise disodium phosphate

Concentrate and let it crystallise: large clear prisms of disodium phosphate. Dry them at about 45 °C until they lose their water.

Zana zinazohitajika:

Sahani ya KuvukiziaSahani ya Kuvukizia
Sahani ya Kupasha JotoSahani ya Kupasha Joto
3

Heat to 300 °C

Heat the dry salt to 300 °C: it gives off water and turns completely into sodium pyrophosphate, a white glassy mass.

Zana zinazohitajika:

Chombo cha KuyeyushiaChombo cha Kuyeyushia
Tanuri ya muffleTanuri ya muffle
Glavu Zinazostahimili JotoGlavu Zinazostahimili Joto

Vifaa

2

Zana Zinazohitajika

12

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Pirofosfeti ya sodiamu

Free

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Phosphoric Acid from Burned Phosphorus: the Thermal Process
Hatari

Phosphoric Acid from Burned Phosphorus: the Thermal Process

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