Crystal preparation and crystal prepared thereby

A technology of crystal and potassium aluminum sulfate, which is applied in the field of hollow pyramid crystal and its preparation, can solve problems such as inconvenient operation, insufficient ornamental value, and irregular crystal shape, and achieve strong operability, enhanced observation ability, and simple preparation process easy effect

Inactive Publication Date: 2009-08-05
邢日辰 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the method for culturing the crystals is inconvenient to operate, and the overall shape of the crystals o

Method used

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  • Crystal preparation and crystal prepared thereby
  • Crystal preparation and crystal prepared thereby
  • Crystal preparation and crystal prepared thereby

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0021] Specifically, the method for preparing the hollow pyramid-shaped crystal of the present invention includes the following steps:

[0022] Step 1: Prepare a predetermined concentration of sodium chloride aqueous solution with a predetermined temperature of hot water.

[0023] Step 2: Add a predetermined mass of potassium aluminum sulfate crystals to the hot sodium chloride aqueous solution prepared in Step 1, and stop stirring after stirring to dissolve.

[0024] Step 3: After the above system is stored at room temperature for a predetermined period of time, sodium chloride and potassium aluminum sulfate precipitate together crystals, and there are inverted hollow pyramid-shaped crystals floating on the surface of the liquid (such as Figure 4 Shown).

[0025] Wherein, in the above step 1, the predetermined temperature of the hot water used for preparing the sodium chloride aqueous solution is 70-100° C., and the mass percentage concentration of the predetermined concentration...

Example Embodiment

[0032] Example 1

[0033] Add 20g of sodium chloride to 100g of hot water at a temperature of 70°C, stir until it is completely dissolved, then add 10g of potassium aluminum sulfate crystals to it, stir until it is completely dissolved, stop stirring, store at room temperature for 2 days, the liquid surface appears more An inverted floating hollow pyramid-shaped crystal with an average side length of 1.5cm at the bottom of the crystal, an average height of 1.2cm, four inner and outer surfaces with a stepped undulating structure, and an average step height of 0.1cm.

Example Embodiment

[0034] Example 2

[0035] Add 35g of sodium chloride to 100g of hot water at a temperature of 100℃, stir until it is completely dissolved, then add 7g of aluminum potassium sulfate crystals to it, stir until it is completely dissolved, stop stirring, store at room temperature for 2 days, the liquid surface appears more A hollow pyramid-shaped crystal floating upside down. Seven days later, the hollow pyramid-shaped crystal floating upside down grew. The bottom side of the crystal is 5.6cm on average, and the height is 5.1cm on average. The four sides of the crystal have a stepped undulating structure. The height of the steps is 0.1cm on average.

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Abstract

The invention provides a crystal preparation method and a crystal thereby. The method comprises the following steps: step 1, preparing a sodium chloride aqueous solution with a preset concentration from hot water with a preset temperature; step 2, adding an aluminum potassium sulfate crystal with a preset mass to the hot sodium chloride aqueous solution obtained in the step 1 and stirring the aluminum potassium sulfate crystal to be dissolved; and step 3, standing the system at a room temperature for a preset time to obtain a hollow pyramid-type crystal. The crystal has a hollow pyramid figure, has an open bottom and respectively has four inner sides and four outer sides, the four inner sides and the four outer sides of the crystal extend from the top of a pyramid to the bottom of the pyramid, and step corrugated structures are respectively arranged on the four inner sides and the four outer sides. The crystal preparation method precipitates crystal from two substances of sodium chloride and aluminum potassium sulfate, the obtained crystal has regular pyramid figure with attractive appearance and strong appreciation, and the preparation technology of the method is simple and easy and has strong operability.

Description

technical field [0001] The invention belongs to the technical field of crystal growth and preparation, in particular to a hollow pyramid crystal and a preparation method thereof. Background technique [0002] When the hot saturated solution of aluminum potassium sulfate or sodium chloride is left to cool, crystals with beautiful crystal shapes can be precipitated, and their color is crystal clear, and they can grow into large crystals in a solution of appropriate concentration. During the process of cultivating crystals, sinking crystals will be formed at the bottom of the beaker, and the crystals deposited on the bottom of the container generally have a complete shape at the upper part, while the lower part cannot grow into a complete crystal form due to the limitation of the growth space. If the seed crystals are suspended and placed in a beaker for cultivation by the suspension method, larger and more complete crystals can be formed. The color of the crystals obtained wh...

Claims

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Application Information

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IPC IPC(8): C30B7/08C30B29/10C30B29/66
Inventor 邢日辰马列王奇
Owner 邢日辰
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