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chemical and minerals

METALS    
MINERALS 
CHEMICALS

Delivering Excellence Since 2008

ABOUT US

Lexen Industries is a leading supplier and distributor of high-purity industrial minerals and chemical additives, serving clients across India and global markets. We specialize in providing superior materials for a diverse range of industries, including plastics, polymers, paints, coatings, rubber, and cable manufacturing.Our comprehensive product portfolio includes high-performance magnesium hydroxide, aluminium trihydrate (ATH), zinc borate, and a full range of Flamex fire retardant additives. We also supply key materials like antimony trioxide, talc powder , Silica powder , calcium carbonate powder , dolomite powder , calcium chloride powder , and PVC resin, all meeting the highest standards of quality and safety.At Lexen Industries, we are committed to building lasting partnerships through technical expertise, a robust global supply chain, and exceptional customer-centric service. Trust us for reliable sourcing, timely delivery, and the precise chemical solutions your business needs to innovate and succeed.

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Calcium Carbonate Powder – Specifications & Industrial Uses

Calcium Carbonate Powder – Specifications & Industrial Uses

Discover high-purity calcium carbonate powder from Lexen Industries, your trusted supplier for industrial minerals and chemical additives.

Specifications:

  • Chemical Formula: CaCO₃

  • Purity: ≥98%

  • Color: White, fine powder

  • Particle Size: Custom grades (micronized, different mesh sizes)

  • Density: 2.71 g/cm³

  • Moisture: ≤0.2%

  • Solubility: Insoluble in water, soluble in acids

  • Packaging: 25 kg/50 kg bags, jumbo sacks

Key Industrial Uses:

  • Plastics & Polymers: Used as a cost-effective filler in PVC, polyethylene, and polypropylene. Enhances rigidity, improves surface finish, and optimizes processing.

  • Paints & Coatings: Improves opacity, brightness, and weather resistance. Acts as an extender to reduce pigment cost.

  • Construction: Integral in cement, concrete, mortars, and asphalt for better workability, durability, and cost savings.

  • Rubber Products: Adds abrasion resistance, elasticity, and tensile strength in tires, hoses, and footwear.

  • Paper Industry: Delivers whiteness, brightness, and a smooth finish for superior printing and packaging applications.

  • Ceramics: Boosts whiteness and mechanical strength in tiles, ceramics, and sanitaryware.

  • Food & Pharmaceuticals: Used as a pure calcium supplement and acidity regulator (food and pharma grade only).

 

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​Talc Powder (Soapstone Powder) – Specifications & Industrial Uses

Talc Powder (Soapstone Powder) – Specifications & Industrial Uses
Order top-grade talc powder from Lexen Industries, a reliable supplier of industrial minerals and chemical additives.

Specifications:

  • Chemical Formula: Mg₃Si₄O₁₀(OH)₂

  • Purity: ≥96%

  • Appearance: White/off-white fine powder

  • Particle Size: Micronized and various mesh grades available

  • Density: ~2.7 g/cm³

  • Moisture: ≤0.5%

  • Oil Absorption: 35-45 g/100g

  • Packaging: 25/50 kg bags, jumbo sacks

Industrial Applications:

  • Plastics & Polymers: Used as a functional filler in PP, PE, PVC, improving stiffness, thermal resistance, and surface finish.

  • Paints & Coatings: Enhances smoothness, opacity, and anti-cracking properties; improves paint adhesion and durability.

  • Rubber Industry: Increases dimensional stability, processability, and anti-sticking properties.

  • Ceramics: Boosts whiteness and mechanical strength, lowers firing temperature.

  • Cosmetics & Personal Care: Acts as an anti-caking agent and skin protector in powders, creams, and makeup.

  • Paper & Pulp: Adds smoothness, brightness, and printability to premium-grade paper.

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Aluminium Trihydrate (ATH) Product Details

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Aluminium Trihydrate (ATH), also known as Aluminium Hydroxide  or Hydrated Alumina  is a versatile, non-toxic, and naturally occurring mineral derived from bauxite ore.3 It is one of the most widely used halogen-free flame retardants and a key functional filler across various industrial sectors.4

 

 

📝 Aluminium Trihydrate (ATH) Powder

Product Description

Aluminium Trihydrate (ATH) powder is a fine, white, non-toxic mineral compound composed of hydrated aluminum oxide (Al(OH)3). It is widely used as a flame retardant and filler in various industrial applications due to its excellent thermal stability and flame-retardant properties. ATH is known for its environmentally friendly nature and is a key additive in plastics, rubber, paints, and coatings industries.

Specifications

  • Chemical Formula: Al(OH)3

  • Appearance: Fine white powder

  • Purity: ≥ 99%

  • Particle Size: Typically 1-5 microns (customizable on request)

  • Loss on Drying: ≤ 1%

  • pH Value: Neutral (6-8)

  • Moisture Content: ≤ 0.5%

  • Bulk Density: 0.4 to 0.6 g/cm³

  • Specific Surface Area: 1.5 - 2.5 m²/g

Industrial Uses

  • Flame Retardant: ATH acts as an effective flame retardant in polymer composites, plastics, cables, and electrical insulation by releasing water vapor when heated that cools down the substrate and suppresses fire.

  • Filler Material: It is extensively used as a filler in paints, rubber, adhesives, sealants, and coatings to improve product properties and reduce production costs.

  • Paper Industry: Used as a coating pigment to enhance gloss, brightness, and smoothness of paper.

  • Plastics and PVC: Enhances fire resistance and mechanical strength of plastic products.

  • Cosmetics: Used safely in personal care products as an absorbent and pacifying agent.

  • Pharmaceuticals: Utilized as an inactive ingredient in tablet formulations.​​

1. 🔥 Flame Retardant & Smoke Suppressant (Primary Use)​

  • Cools the polymer/material.

  • Dilutes the concentration of flammable gases and oxygen.

  • Forms a protective alumina layer on the surface, suppressing smoke.

  • Target Industries:

  • Plastics & Polymers (PVC, PE, EVA, Rubber): Wire and cable insulation, carpet backing, conveyor belts.

    Construction Materials: Artificial marble, solid surface materials, roofing, and wall panels.

  • Coatings & Textiles: Fire-resistant paints, adhesives, and sealants.

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2. 🎨 Functional Filler & Pigment Extender

 

Due to its high whiteness and low abrasiveness, ATH is used as a cost-effective functional filler.

  • Solid Surface Materials: Used in high loading levels (up to 70%) to provide a durable, non-porous, and fire-resistant composite.

  • Paints & Coatings: Acts as an extender, improving opacity, brightness, and mechanical properties.

    Paper Industry: Used as a filler to enhance paper brightness and smoothness.

3. 🧪 Chemical Raw Material

  • Water Treatment: Used for the production of aluminum-based coagulants, such as Poly Aluminium Chloride (PAC) and Alum

  • Manufacturing: Precursor for the production of other aluminum chemicals, zeolites, glass, and ceramic glazes

4. 💊 Pharmaceutical Applications

  • Used as an active ingredient in some antacids to neutralize stomach acid​

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Calcium Chloride Powder

Calcium Chloride Powder

Product Description

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Calcium Chloride Powder is a white, highly soluble inorganic compound commonly used in various industrial and commercial applications. Known for its hygroscopic properties and rapid moisture absorption, calcium chloride is valued for dust control, de-icing, and as a versatile drying agent.

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Specifications

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  • Chemical Formula: CaCl₂

  • Appearance: White fine powder or granules

  • Purity: ≥ 94%

  • Moisture Content: ≤ 1%

  • Assay (CaCl₂): ≥ 94%

  • Specific Gravity: 2.15 g/cm³

  • Solubility: Complete in water

  • pH (10% Solution): 8.0 - 10.0

  • Particle Size: Customizable (typically 60-200 mesh)

  • CAS Number: 10043-52-4

Industrial Uses

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  • Dust Control: Applied to unpaved roads and construction sites to suppress dust and stabilize soil.

  • De-Icing & Ice Prevention: Used on roads, driveways, and pavements as a highly effective de-icing agent in cold climates.

  • Concrete Accelerator: Enhances the setting time and strength development of concrete and cement mixtures.

  • Desiccant & Drying Agent: Absorbs moisture in packaging, laboratories, and industrial processes.

  • Food Processing: Utilized as a firming agent in canned vegetables and in cheese production (meets food grade standards when specified).

  • Water Treatment: Acts as a coagulant and aids in water softening.

  • Refrigeration: Used in brine solutions for refrigeration and ice-making.

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China Clay 

China Clay 

Product Description

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China Clay, also known as Kaolin, is a fine, white to off-white mineral powder primarily composed of hydrated aluminum silicate. Renowned for its exceptional purity, plasticity, and chemical stability, China Clay is a crucial raw material in various industries and is prized for its versatility and high performance.

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Specifications

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  • Chemical Formula: Al₂Si₂O₅(OH)₄

  • Appearance: Fine white to off-white powder

  • Purity: ≥ 96%

  • Al₂O₃ (Alumina): 35-39%

  • SiO₂ (Silica): 45-49%

  • Moisture Content: ≤ 1%

  • Particle Size: 325 mesh (customizable on request)

  • pH Value: 4.5 - 5.5

  • Brightness: ≥ 80%

  • Specific Gravity: 2.6 g/cm³

  • ​

Industrial Uses

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  • Ceramics: Used as a key ingredient in porcelain, tiles, and sanitary ware due to its excellent plasticity, whiteness, and firing properties.

  • Paper Industry: Serves as a coating and filling agent, improving paper brightness, smoothness, and print quality.

  • Paints & Coatings: Functions as an opacifier and extender, enhancing paint texture, coverage, and cost-efficiency.

  • Rubber Industry: Acts as a reinforcing agent to improve strength and flexibility.

  • Plastics: Used as a filler to boost opacity, durability, and processability.

  • Pharmaceuticals & Cosmetics: Employed as a gentle, non-abrasive absorbent in personal care products.

  • Agriculture: Used as a carrier for pesticides and fertilizers.

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premium Dolomite Powder: Calcium Magnesium Carbonate

premium Dolomite Powder

 

Dolomite powder is a highly versatile, naturally occurring calcium magnesium carbonate  Valued for its unique dual composition of calcium oxide and magnesium oxide , high purity, and bright white color, it serves as an economical and functional material across a wide spectrum of industrial and agricultural applications. Dolomite Powder is a fine, white to off-white mineral compound composed of calcium magnesium carbonate (CaMg(CO₃)₂). Known for its high purity and consistent quality, dolomite powder is used as a versatile ingredient and filler in various industrial processes. Its unique properties make it ideal for use in construction, manufacturing, agriculture, and glass industries.

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Specifications

  • Chemical Formula: CaMg(CO₃)₂

  • Appearance: Fine white to off-white powder

  • Purity: ≥ 97% (CaCO₃ + MgCO₃ combined)

  • Calcium Oxide (CaO): 28-32%

  • Magnesium Oxide (MgO): 18-22%

  • Silica (SiO₂): ≤ 2%

  • Moisture Content: ≤ 0.5%

  • Bulk Density: 0.6 - 0.8 g/cm³

  • Particle Size: 100 mesh to 500 mesh (customizable)

  • pH Value: Neutral to slightly basic (8-9) 

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  • 🏭 Major Industrial Uses & Applications

  •  

  • Dolomite powder is essential in industries requiring a stable, dual-oxide source and a high-quality filler.

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  • 1. 🔥 Iron & Steel Industry (Refractories and Flux)

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  • Fluxing Agent: Used in blast furnaces and converters to remove impurities (like silica and alumina) from iron ore, forming a clean slag.6 This process is crucial for producing high-purity metal.

  •  

  • Refractory Material: Dead-burned (sintered) dolomite is used to manufacture refractory bricks and linings for furnaces and kilns due to its ability to withstand extremely high temperatures.

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  •  

  • 2. 🧱 Glass & Ceramics Manufacturing

  •  

  • Glass Flux: Acts as a flux to reduce the melting temperature of silica, leading to energy savings. The  component enhances the durability, clarity, and chemical stability of the finished glass (e.g., flat glass, container glass).

  •  

  • Ceramics: Used as a source of  in ceramic bodies and glazes to improve firing properties, mechanical strength, and after-burning whiteness.

  •  

  •  

  • 3. 🎨 Paints, Polymers, and Fillers

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  • Functional Filler: Used extensively in plastics (PVC, PE, PP) and rubber to increase stiffness, dimensional stability, impact resistance, and reduce overall material cost.

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  • Paints & Coatings: Acts as an extender pigment in water-based paints and wall putty, improving brightness, weather resistance, and providing better anti-settling properties.15

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  • 4. 🌱 Agriculture and Environmental Use

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  • Soil Conditioner: Its alkaline nature is crucial for neutralizing acidic soils, which optimizes the  level for nutrient absorption by crops.

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  • Nutrient Source: Supplies two essential plant nutrients: Calcium (for cell wall strength) and Magnesium (essential for photosynthesis and chlorophyll production)

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  • Water Treatment: Used as a filter media to adjust 19$\text{pH}$ and remove heavy metals in water purification.

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Silica
Powder

Product Description

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Silica Powder, also known as Silicon Dioxide (SiO₂), is a high-purity, white to off-white fine powder widely used in various industries for its exceptional chemical stability, hardness, and high melting point. Sourced from natural quartz, silica powder serves as a functional additive and filler, catering to numerous industrial and manufacturing requirements.

Specifications

​

  • Chemical Formula: SiO₂

  • Appearance: Fine white to off-white powder

  • Purity: ≥ 98%

  • SiO₂ Content: ≥ 98%

  • Loss on Ignition: ≤ 0.5%

  • Moisture Content: ≤ 0.3%

  • Particle Size: 200 mesh to 1200 mesh (customizable)

  • Bulk Density: 0.4 – 0.6 g/cm³

  • pH Value: 6.5 – 7.5

  • Hardness: 7 on Mohs scale

  • Specific Gravity: 2.6 g/cm³

Industrial Uses

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  • Glass Manufacturing: Essential raw material in the production of commercial and specialty glass products.

  • Ceramics: Used for making tiles, sanitary ware, and other ceramic goods, enhancing strength and finish.

  • Construction Industry: Serves as a key ingredient in concrete, mortar, and cement for improved strength and durability.

  • Paints and Coatings: Acts as a filler and matting agent, increasing paint longevity, smoothness, and UV resistance.

  • Rubber and Plastics: Improves tensile strength, abrasion resistance, and processability when added to rubber and polymer blends.

  • Foundry Industry: Used as molding sand and for core making in metal casting processes.

  • Electronics: Forms the basis for producing silicon wafers, optical fibers, and semiconductor components.

  • Adhesives and Sealants: Provides reinforcement and viscosity control.

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Magnesium Hydroxide Powder

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Product Description

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Magnesium Hydroxide (Mg(OH)₂) is a fine, white, odorless powder known for its excellent flame retardant and smoke-suppressing properties. Sourced from high-purity magnesium ore, it is widely used in industrial, chemical, and environmental applications due to its effectiveness as a non-toxic, eco-friendly additive.

Specifications

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  • Chemical Formula: Mg(OH)₂

  • Appearance: Fine white powder

  • Purity: ≥ 95%

  • Magnesium Content (as MgO): ≥ 60%

  • Loss on Ignition: 30-32%

  • Moisture Content: ≤ 1%

  • pH (10% Suspension): 9.5 – 10.5

  • Particle Size: 1-10 microns (customizable)

  • Bulk Density: 0.25 - 0.45 g/cm³

  • Solubility: Insoluble in water, soluble in acids

  • CAS Number: 1309-42-8

  • ​

Industrial Uses

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  • Flame Retardant: Acts as an effective flame retardant and smoke suppressant in plastics, cables, rubber, and polymer composites.

  • Wastewater Treatment: Used to neutralize acidic wastewater, remove heavy metals, and control pH in industrial effluents.

  • Environmental Protection: Applied for flue gas desulfurization and as an absorbent to capture acid gases.

  • Pharmaceuticals: Serves as an antacid and laxative in medicinal products.

  • Paper Manufacturing: Enhances whiteness, brightness, and opacity as a paper filler and coating agent.

  • Agriculture: Used as a soil conditioner and animal feed additive.

  • 🌟 Key Advantages of Magnesium Hydroxide

  •  

  • Magnesium hydroxide is a preferred choice in many industries because its benefits go beyond just stopping flames.

  • Halogen-Free: This is its most significant advantage. It contains no halogens (like bromine or chlorine) found in older retardants. Halogenated compounds can release highly toxic and corrosive gases (like dioxins and furans) when they burn, posing a severe inhalation risk and damaging electronics.

  • Non-Toxic: Both the original Mg(OH)₂ and its decomposition product (MgO) are considered safe and non-toxic.

  • Excellent Smoke Suppression: A majority of fire-related deaths are due to smoke inhalation. Mg(OH)₂ is a superior smoke suppressant. By cooling the material and forming a char layer, it dramatically reduces the amount of thick, black, toxic smoke produced, improving visibility for evacuation and reducing overall danger.

  • Higher Thermal Stability: Compared to other mineral retardants like aluminum hydroxide (ATH), Mg(OH)₂ has a higher decomposition temperature. This makes it the ideal choice for polymers that require high processing temperatures during manufacturing (like polypropylene and polyamides)

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