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Epsom Salt: Magnesian Limestone Digested in Dilute Sulphuric Acid, Ure 1839
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Epsom Salt: Magnesian Limestone Digested in Dilute Sulphuric Acid, Ure 1839

Epsom salt, sulphate of magnesia, was first got from the springs at Epsom in 1695. Andrew Ure (1839): the simple way is to digest magnesian limestone in dilute sulphuric acid; the lime falls out as sulphate of lime and the clear liquid is boiled down to crystals. Gloves and goggles for the acid. The picture: Epsom salt crystals.
Mwanzo
Three days

Maagizo

1

Grind

Break and grind the magnesian limestone to a coarse powder and weigh it.

Vifaa kwa hatua hii:

Dolomiti (chokaa yenye magnesia)Dolomiti (chokaa yenye magnesia)1 kg

Zana zinazohitajika:

Kinu na mchiKinu na mchi
Ungo wa Matundu MembambaUngo wa Matundu Membamba
Mizani ya mizani-mbiliMizani ya mizani-mbili
Barakoa ya vumbiBarakoa ya vumbi
2

Digest in acid

In a wooden tub, stir the powder into dilute sulphuric acid a little at a time. Add acid until fresh acid no longer fizzes on the stone (ours), and leave it to stand.

Vifaa kwa hatua hii:

Asidi ya sulfuriki iliyopunguzwaAsidi ya sulfuriki iliyopunguzwa4 lita

Zana zinazohitajika:

Beseni la mbaoBeseni la mbao
Fimbo ya Kioo ya KukorogaFimbo ya Kioo ya Kukoroga
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
3

Settle and pour off

Let the white sulphate of lime settle to the bottom, then pour the clear liquid off it.

Zana zinazohitajika:

Beseni la mbaoBeseni la mbao
Sufuria KubwaSufuria Kubwa
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
4

Crystallise

Boil the clear liquid down (step 5) and leave it to cool: the salt forms in four-sided prisms. Drain, dry and keep it in a closed jar.

Zana zinazohitajika:

Sufuria KubwaSufuria Kubwa
KuniKuni
Sahani ya KuvukiziaSahani ya Kuvukizia
Chupa ya KiooChupa ya Kioo
Miwani ya kinga dhidi ya kemikaliMiwani ya kinga dhidi ya kemikali
Glavu za mpiraGlavu za mpira
5

Water for crystallising

Inapakia daftari la Jupyter…

Vifaa

2

Zana Zinazohitajika

12

Mchoro huu unatengeneza

Thumbnail
Kishikilia nafasi

Sulfati ya magnesi (chumvi ya Epsom)

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Blueprint zinazohusiana

Blueprint hizi zinashiriki maarifa — mbinu, vifaa au kanuni

Oil of Vitriol Distilled from Green Vitriol, the Nordhausen Way, Ure 1839
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Oil of Vitriol Distilled from Green Vitriol, the Nordhausen Way, Ure 1839

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Dilute Sulfuric Acid: Concentrated Acid Poured into Water
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Dilute Sulfuric Acid: Concentrated Acid Poured into Water

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