Types of Semnan gypsum products

Semnan gypsum is a highly consumed mineral substance in Iran and the world. This material is used in various industrial, manufacturing, food, pharmaceutical, agricultural, medical, construction, molding, artificial stone production, and many other applications in a country. What matters in the buying and selling of gypsum is its quality and characteristics.Characteristics of Semnan gypsum
We have detailed these characteristics in a separate article. Among the most important quality indicators are the purity percentage and color of gypsum.
We claim that Semnan gypsum is one of the highest quality and purest gypsum mines in the world. To place orders for various types of Semnan gypsum for different purposes, please contact us at +989121319065.
This mineral is found in relatively thick layers in the Earth’s crust in Semnan province. In general, it is ranked fifth in terms of abundance in nature. Various types of Semnan gypsum are found as gypsum rock with the formula CaSO4+2H2O. Due to its high chemical reactivity, it is not extracted in its pure form but is often mixed with carbon or iron oxides along with limestone and clay. Gypsum that is found as calcium sulfate without water is known as anhydrite.
The extracted rock is transported to a processing plant, crushed, roasted, and dust is removed. Then, it is calcined, milled, and classified based on the desired product. It is then marked and packaged, and finally, quality control is performed.
Processed and calcined gypsum is a material that has an affinity for moisture, so the packaging and storage methods can significantly impact its quality.

All of these stages require skilled labor and equipment since precision in these processes greatly affects the quality of the gypsum produced. It should be noted that the stages described above are for the production of ordinary gypsum. Micronized gypsum involves an additional step (separation), and polymer gypsum involves two additional steps (addition of additives).

The prominent applications of various types of Semnan gypsum can be summarized as follows:

1. Construction Industry:

• Used in plastering, white work, clean work, finishing, and as a binder in mortar and concrete.
•  Employed in making plasterboard, bricks, and sand and gypsum blocks.
•  Used for thermal and acoustic insulation.
•  Utilized in pre-fabricated ceiling and wall panels.
•  Used in sculpture.

2. Cement Industry:

• Extends the setting time of cement (retarder).

3. Ceramics and Pottery:

•  Used in the production of ceramics and pottery.

4. Glass Industry:

•  Regulates the viscosity of molten glass, depending on dissolved or undissolved oxygen.

5. Foundry Industry:

•  Used as a non-combustible material.

6. Agriculture:

•  Used for chemical fertilizers, soil conditioner, and chemical pesticides.
• Helps reduce soil salinity and adjust soil pH.
•  Aids in separating sodium from plant roots.
•  Improves soil structure and porosity.
•  Effective in neutralizing harmful effects of chemical fertilizers.
•  Enhances soil drainage and moisture retention.
•  Prevents soil crust formation.

7. Medical Field:

•  Used for making medical casts, dental molds, and tablets.
•  Employed in insecticides and yeast growth.

8. Paper Industry:

•  Increases paper transparency when used in paper production.

9. Petrochemical Industry:

•  Acts as a desiccant.

10. Leather Industry:

•  Used for dehairing hides.

11. Sulfuric Acid Production:

•  Used in the manufacture of sulfuric acid.

These are just some of the applications of various types of Semnan gypsum in a country’s industries and production.