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Where can you find a alum crystal seed?
You can purchase alum crystal seeds online or at hobby stores that sell chemistry supplies. They are commonly used in crystal growing kits or experiments.
What would happen if a potassium alum seed crystal is placed in a supersaturated copper sulfate solution?
The potassium alum seed crystal will not induce the formation of copper sulfate crystals. Each substance forms its own distinct crystal structure, so the seed crystal must be made of the same substance as the solution for crystal growth to occur.
Why should you not wash alum crystals in water?
Alum crystals are made of aluminum potassium sulfate, and are usually made by slowly dehydrating an aqueous solution of aluminum potassium sulfate. So, when you put water back onto a dried crystal, you will begin to dissolve it again.
How do you turn alum crystals back into alum?
To turn alum crystals back into hydrated potassium aluminium sulfate, you can dissolve the crystals in water and then let the solution evaporate slowly. The crystals will reform as the water evaporates.
What chemicals make crystals grow the largest?
Chemicals that promote crystal growth typically include a solvent for dissolving the crystal substance, a source of the crystal material itself, and sometimes a seed crystal to initiate growth. Common examples include salt, sugar, and alum in water solutions. However, the exact composition and conditions for growing large crystals can vary based on the specific crystal substance being grown.
What is the colour of potash alum'?
Potash alum is typically white or colorless in its pure form. However, it can also appear in shades of off-white or pale pink due to impurities or crystal structure variations.
How much weight can alum crystals withstand?
The weight that alum crystals can withstand varies depending on their size and structure, as well as the specific type of alum. Generally, alum crystals are relatively brittle and can break under significant stress or pressure. There's no standard weight limit for all alum crystals; their strength is influenced by factors such as purity and crystal formation. For practical purposes, it's essential to handle them gently to avoid breakage.
Why does ethanol have to be cold and not room temperature in the synthesis of alum?
Ethanol must be cold in the synthesis of alum to promote the precipitation of alum crystals. Cold temperatures reduce the solubility of the alum in the solution, allowing for better crystal formation and growth. If the ethanol were at room temperature, the solubility would be higher, potentially leading to fewer and smaller crystals, which could affect the yield and purity of the final product.
What type of crystal structure is aluminum-potassium sulfate?
KAl(SO4)2·11(H2O), Kalinite, is in the monoclinic crystal system. New Answer: Actually, the OP is almost certainly asking about aluminum potassium sulfate dodecahydrate, KAl(SO4)2·12(H2O), more commonly known as alum, which has a face centered cubic crystal structure.
What type of rock is alum crystal?
Alum crystals are typically classified as a type of mineral rather than a rock. Specifically, they are a hydrated sulfate mineral, often composed of potassium aluminum sulfate. The most common form is potassium alum, which has the chemical formula KAl(SO₄)₂·12H₂O. While alum can occur in crystalline form, it is not classified as a rock, which is generally composed of one or more minerals.
What dangers might there be from Hydrogen gas formation when converting an alum crystal?
i think it might be explosion. because H2 is very easy to be explode.
Why does alum make big crystals?
It's not that only alum makes big crystals.. There are so many compounds that can make big crystals. Even Sodium Hydroxide makes very good and big crystals. For crystals you need a uniform arrangement of atoms in space. For big crystals all you need is patience. The slower is the crystallization process the bigger crystals are formed. What industries do is called seeding. They make a good concentrated solution of the compound whose crystals are needed and then they put a crystal of the same compound in the solution. The new crystals form and attach to the crystal making quick and big crystals.
