Silica

Silica (SiO₂) is a naturally occurring mineral that plays an essential role in various industries due to its unique properties. It is widely used in construction, manufacturing, cosmetics, and pharmaceuticals for its ability to enhance texture, increase durability, and provide a non-reactive, stable base. Silica is available in different forms such as powder, gel, and microspheres, making it versatile for numerous applications.

Physical Properties:

Appearance: White or off-white powder, often in fine granular form.

Density: Approximately 2.65 g/cm³.

Solubility: Insoluble in water, acids, and alkalis.

Particle Size: Available in varying particle sizes from micron-sized powder to larger granules.

Texture: Fine and powdery; may vary depending on the grade.

Odor: Odorless.

Chemical Properties:

Chemical Formula: SiO₂ (Silicon Dioxide)

pH: Neutral to mildly alkaline (typically between 6-8).

Reactivity: Non-reactive, making it stable in a wide range of environments.

Composition: Primarily silicon and oxygen, often in the form of amorphous silica, though crystalline forms like quartz are also common.

Thermal Stability: High thermal resistance, making it ideal for high-temperature applications.

Applications:

Construction: Used in concrete and cement to improve strength and durability.

Cosmetics: Added to powders, creams, and lotions for its oil-absorbing properties and smooth texture.

Pharmaceuticals: Acts as a flow agent in the formulation of tablets and capsules.

Manufacturing: Used as a filler in paints, coatings, and rubber products.

Electronics: Utilized in semiconductor manufacturing due to its insulating properties.

Food Industry: Added to powdered food products as an anti-caking agent.

Grades and Specifications:

Grade 1: Amorphous Silica (Fine powder, used in paints, cosmetics, and as a filler in various applications).

Grade 2: Crystalline Silica (Quartz form, used in construction and manufacturing).

Grade 3: Fumed Silica (Ultra-pure form, typically used in high-performance coatings and pharmaceuticals).

Grade 4: Silica Gel (Used in desiccants and as a catalyst support).

Packaging and Storage:

Packaging Options: Available in bulk containers, 25 kg bags, and custom packaging sizes.

Storage Instructions: Store in a cool, dry place away from moisture and direct sunlight. Keep containers tightly sealed to maintain product quality.

Safety and Handling:

Personal Protective Equipment (PPE): Wear gloves, goggles, and a dust mask to avoid inhalation of fine silica particles during handling.

First Aid: In case of inhalation, move to an area with fresh air. In case of eye contact, rinse thoroughly with water for 15 minutes. Seek medical attention if needed.

Precautionary Measures: Silica dust can be harmful if inhaled in large quantities. Ensure proper ventilation in the work area and use appropriate safety equipment.

Shipping Information:

Shipping Options: We offer both standard and expedited shipping services for silica powder. Depending on your location, the delivery time may vary.

Shipping Regions: We ship to locations worldwide. For bulk orders, we offer customized shipping solutions for different regions.

Lead Time: Standard lead time is typically 3-5 business days for in-stock products. For bulk orders or custom packaging, the lead time may vary. Contact our sales team for precise details.

Shipping Charges: Charges are based on the weight and destination of the shipment. Shipping costs will be calculated at checkout, and we offer free shipping on orders over a specific value (based on region).

FAQS

What is the primary use of silica in construction?

Silica is used in construction to improve the strength and durability of concrete and cement. It helps increase the resistance to wear and tear, making structures last longer.

Is silica safe for use in cosmetics?

Yes, silica is widely used in cosmetics for its texture-enhancing properties. It is safe when used as directed and can absorb oils and improve the feel of powders, creams, and lotions.

Can silica be used as a food additive?

Yes, silica is commonly used as an anti-caking agent in powdered foods to prevent clumping and improve flowability. It is recognized as safe for consumption by regulatory bodies.

How should silica be stored?

Store silica in a cool, dry place away from moisture and heat. Ensure that the packaging is tightly sealed to avoid contamination and maintain the quality of the product.

What precautions should be taken when handling silica powder?

When handling silica powder, use a dust mask to avoid inhalation of fine particles. Wear protective gloves and goggles to prevent skin and eye contact, and ensure proper ventilation in the work area.