vano
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What can I make from sodium metasilicate?
Hi. Today i bought sodium metasilicate. I think I wasted my money and it was better to buy lithium hydroxide instead. I made the decision very
quickly. I wanted to make colored salts, but it turned out that I could not make anything other than silicon dioxide and other white silicon
compounds. Do you have any idea what I can make?
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vano
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Na2SiO3 •9H2O
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Fery
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https://en.wikipedia.org/wiki/Chemical_garden
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vano
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Thanks
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DraconicAcid
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This.
Also you can use it to make gels to grow crystals in- you get very slow diffusion of one reactant through the gel, so crystals of very insoluble
things can be made larger than usual.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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Bedlasky
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You can make transition metal silicates, they are coloured.
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vano
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Yes, but as a Wikipedia when metasilicate dissolve in water hydroxide and SiO2 is produced. I think the product will be contaminated with hydroxide.
[Edited on 9-3-2021 by vano]
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Maurice-VD-3
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You could drop tiny crystals of CuSO4, NiCl2, FeSO4, etc. and wait without touching the vessel. As soon as the crystals gets dissolved, it wil react
and form a colored precipitate of copper, nickel or iron silicate. And these substances are lighter than the silicate solution. As a consequence, they
will form a column of metallic silicate that is steadily growing across the solution. It looks as if it was a plant growing in a garden. It is
surprising. But these columns are fragile. The smallest shock wil destroy them.
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vano
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Quote: Originally posted by Maurice-VD-3  | | You could drop tiny crystals of CuSO4, NiCl2, FeSO4, etc. and wait without touching the vessel. As soon as the crystals gets dissolved, it wil react
and form a colored precipitate of copper, nickel or iron silicate. And these substances are lighter than the silicate solution. As a consequence, they
will form a column of metallic silicate that is steadily growing across the solution. It looks as if it was a plant growing in a garden. It is
surprising. But these columns are fragile. The smallest shock wil destroy them. |
Thanks
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Bedlasky
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| Quote: Originally posted by vano |
Yes, but as a Wikipedia when metasilicate dissolve in water hydroxide and SiO2 is produced. I think the product will be contaminated with hydroxide.
[Edited on 9-3-2021 by vano] |
Water glass is essentialy aqueous solution of sodium silicate and it's perfectly stable. Silicates are less soluble than hydroxides, so silicate
precipitate first.
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vano
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I wonder here why it is written so. Now I know, I dissolved a few grams, although it looked like a solution of hydroxide(I put a few drops on my
hand), but the dioxide did not precipitated. Unfortunately I do not have metal salts here to make colored compounds.
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DraconicAcid
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| Quote: Originally posted by Maurice-VD-3 | | You could drop tiny crystals of CuSO4, NiCl2, FeSO4, etc. and wait without touching the vessel. As soon as the crystals gets dissolved, it wil react
and form a colored precipitate of copper, nickel or iron silicate. And these substances are lighter than the silicate solution. As a consequence, they
will form a column of metallic silicate that is steadily growing across the solution. It looks as if it was a plant growing in a garden. It is
surprising. But these columns are fragile. The smallest shock wil destroy them. |
Actually, it is not because the precipitate is lighter than the solution. The crystal rapidly gets coated with a skin of the metal silicate, with is
somewhat porous. Water seeps in through the skin, dissolving more of the crystal to give a concentrated solution of the metal salt. Osmosis brings
in more water, and the skin of silicate breaks. The solution is then exposed directly to the silicate solution, and more skin forms. This repeats
until the tree-like growth is formed.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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S.C. Wack
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Silica gel and florisil. Adsorb something colored on them; now they have color.
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draculic acid69
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I'd use it as waterglass
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