Diosmectite/ Smectite / Bentonite / diosmectite API

English Name: Diosmectite/Dioctahedral Smectite/Montomorrilonite/Bentonite/Smectite

CAS No.: 1318-93-0

Molecular Formula: Al2O9Si3

Molecular Weight: 282.2

Packaging: 25 kg per drum

Function: It is a natural mineral that effectively treats acute and chronic diarrhea and gastrointestinal inflammation.

Mechanism of Action: It has a strong inhibitory and fixative effect on viruses, bacteria, toxins, and gases produced in the digestive tract; in addition, it has a strong ability to cover and protect the digestive tract mucosa, repair and improve the mucosal barrier’s defense function against aggressive factors, maintain normal flora balance, and provide local analgesia.

Characteristics: Dual deterministic effect of intestinal mucosal protection and pathogen action. It will not enter the circulation field and has a high safety profile.

Category:

Description

Our diosmectite API meets international standards such as CP, EP, and USP. We can also meet OEM standards according to customer requirements. Furthermore, we can provide complete documentation for this diosmectite API, such as COA, DMF, COPP, GMP, and WC.

Annual Production Capacity: 1500 tons

Mechanism of Action: Fixes and eliminates viruses, bacteria, and toxins produced in the digestive tract; protects the mucosa from pathogens; promotes mucosal repair and regeneration; balances intestinal flora, maintains homeostasis, and promotes blood clotting.

Physicochemical Properties

Property Category Main Manifestations Key Mechanisms
Physical Properties​ Diverse colors (white, light gray, light green, etc.), low Mohs hardness (2~2.5), slippery feel, expands several to more than ten times its original volume after absorbing water Composed of extremely fine scaly crystals
Chemical Properties ​ Cation Exchangeability: Interlayer cations (such as Na⁺, Ca²⁺) can reversibly exchange with other cations in the environment Isomorphic substitution in the crystal structure results in negatively charged interlayer domains, requiring cation balan
Water Absorption and Swelling: Interlayer spacing increases significantly upon contact with water, forming a colloid Hydration of exchangeable cations in the interlayer, and osmotic hydration caused by the concentration difference between the inside and outside of the crystal layers
Adsorption: Strong adsorption capacity for mycotoxins, heavy metals, bacteria, viruses, etc. Huge specific surface area (up to 800-900 m²/g) and electronegativity provide strong surface adsorption force
Dispersion, Suspension, and Thixotropy: Forms a stable suspension in water, forms a gel upon standing, and becomes thinner upon stirring  The negatively charged lamellar surfaces repel each other; when stationary, they form a “card-like” three-dimensional network structure
Stability: Chemically stable, resistant to acids, alkalis, and salts; good thermal stability (dehydroxylation temperature can reach above 550℃) Stable aluminosilicate crystal structure

Properties and Application Extensions

These properties of diosmectite are not isolated; they collectively determine its wide range of applications. For example, through inorganic or organic modification (such as treatment with quaternary ammonium salts), the surface properties of diosmectite can be adjusted, further increasing its interlayer spacing and changing it from hydrophilic to oleophilic. This greatly expands its applications in polymer nanocomposites, high-efficiency adsorbents, and other fields. It is these unique physicochemical properties that transform diosmectite from an ordinary clay mineral into an indispensable material in many industries, including pharmaceuticals (such as diosmectite powder), animal feed (mycotoxin removal, antidiarrheal), petrochemicals (drilling mud, catalysts), environmental protection (sewage treatment, nuclear waste adsorption), and daily chemicals (rubber, plastic fillers).

The table below summarizes the main applications of diosmectite, allowing you to quickly understand its breadth of applications.

Application Areas Specific Uses Main Utilized Properties
Pharmaceutical Industry Antidiarrheal drugs (diosmectite powder), digestive tract mucosal protectants, pharmaceutical carriers Adsorption, covering and protective capabilities
Animal Husbandry Feed mycotoxin binders, adjunctive treatment for animal diarrhea, feed additives Adsorption of mycotoxins, fixation of pathogens

 

Petrochemical Industry​ Drilling mud, oil decolorizing agents, catalyst carriers Dispersion and suspension properties, thickening, adsorption
Environmental Protection Wastewater treatment, nuclear waste treatment, petroleum purification Adsorption, ion exchange
Industrial Manufacturing​ Fillers for rubber/plastics/paints, foundry sand binders Thickening, adhesion, stability
Daily Necessities​ Cosmetics (face masks, skin creams), cat litter Adsorption, cleaning properties, water absorption and swelling

We are a leading GMP manufacturer of diosmectite API in China, with an annual production capacity of 1500 tons and nearly 20 years of manufacturing experience. Our products meet international standards such as the CP, EP, and USP, and we can also customize OEM products according to customer needs.

To ensure stable product quality, we select high-quality bentonite as raw material, employ advanced technology and modern equipment, and strictly adhere to pharmaceutical standards that exceed national standards for high-level purification. We can provide complete documentation including COA, DMF, COPP, GMP, and WC certificates.

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