How to make Bismuth crystals?

The Bismuth single crystal is obtained by thawing a high-purity Bismuth metal which crystallizes upon slow cooling, and has a density of about 9.8 g/cm3 and has a complicated and regular shape. The crystal enthalpy is oxidized during the manufacturing process, and the thickness of the oxide film determines the color of the reflected light, thereby forming an oxide film of various colors.

In order to produce high quality crystals, a higher purity bismuth metal should be selected with a minimum purity of 99.99%.

Cooling time is an important factor affecting the quality and size of the Bismuth crystal. Large crystals can be grown by slowly cooling and solidifying the Bismuth from the molten state.

The melting point of Bismuth is relatively low compared to other metal elements, only 271 ° C (520 ° F), the Bismuth can be melted using a small propane torch or electric furnace. The molten liquid is a very hot molten metal, which is as easy to flow and splash as any liquid, and may cause severe burns. Please take protective measures in the process of making a single crystal.

Step 2: preparing the material-Bismuth Metal

Place 99.99% Bismuth in a steel measuring cup and place it on the insulation board.

Step 2: pouring molten Bismuth

After the Bismuth has melted, slowly pour the liquid and carefully pour it into another clean and preheated steel measuring cup. The oxide layer of Bismuth in the Bismuth liquid can be removed by transferring the Bismuth into another container.

Step 3: Cool the liquid Bismuth and pour out the liquid Bismuth

Place the Bismuth in a new container and the insulated and heat resistant surface will begin to solidify after cooling. Place the container containing the crucible back on the hot plate off the power supply and slowly cool it to room temperature with residual heat.

When the Bismuth is completely solidified, pour the liquid Bismuth into another container.

Step 5: Obtain the crystal

It is only necessary to lift the Bismuth crystal from the liquid instead of pouring out extra liquid. The cooling time should not be too long, otherwise it may be too large to be removed from the other crystals in the container.

Changsha Santech, exported to the United States, Australia, Turkey, Germany, South Korea, Japan and other countries to produce crafts, single crystal and enamel jewelry. 99.99% Bismuth ingot are suitable for growing Bismuth crystals. If you have any questions, please feel free to contact us.

Product recommendation : Bismuth

Changsha SANTECH provides Bismuth Metal Ingot, Pure Bismuth Granules, High Purity Bismuth Needle, Bismuth Metal Powder, Bismuth Trioxide Powder, etc. Please email us if you are interested in our products. Thank you!