Description

Silicic Acid is a versatile inorganic compound widely utilized for its unique adsorptive and rheological properties. Its ability to form stable gels and its high surface area make it a valuable functional additive across numerous industrial processes. This product is essential for manufacturers in sectors such as pharmaceuticals, food processing, and chemical synthesis, where it acts as a desiccant, anti-caking agent, and catalyst support. We supply high-purity grades to meet the stringent demands of global B2B clients.

Application

• Pharmaceuticals: Used as a disintegrant in tablet formulations and as an adsorbent in purification processes.
• Food & Beverage: Functions as an anti-caking agent in powdered food products and as a clarifying agent in beverages.
• Catalyst & Chemical Synthesis: Serves as a catalyst support material and as a precursor for the manufacture of silica gels and zeolites.
• Cosmetics & Personal Care: Employed as a viscosity modifier and absorbent in various creams, powders, and pastes.
• Chromatography: Acts as a stationary phase in column chromatography for the separation of complex mixtures.
• Industrial Coatings: Used as a matting agent and to control rheology in paints and coatings.

Basic Information

Product Name	Silicic Acid
CAS No.	1343-98-2
Molecular Formula	H₂SiO₃
Molecular Weight	78.10 g/mol
Synonyms	Monosilicic Acid; Orthosilicic Acid; Hydrated Silica; Silicon Dioxide Hydrate; SiO₂·xH₂O; Kieselsäure (German); Acide Silicique (French); Ácido Silícico (Spanish)
EINECS	215-683-2

Quality Control

Our Silicic Acid is produced under a stringent quality management system. Each batch is tested to ensure it meets precise specifications for purity, heavy metal content, and loss on drying. We provide comprehensive Certificates of Analysis (COA) with every shipment, detailing all relevant parameters. Our quality commitment ensures reliability for applications in pharmaceutical (meeting ICH Q7 guidelines), food (FCC compliance where applicable), and industrial grades.

Storage

Preserve in a tightly closed container, protected from light. Due to its hygroscopic (moisture-sensitive) nature, the product must be stored in a cool, dry place with minimal humidity fluctuation. Recommended storage temperature is 15-25°C. Keep the container tightly sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms
Assay (as SiO₂)	≥ 98.0 %
Loss on Drying	≤ 2.0 %
pH (5% suspension)	3.5 - 5.5
Heavy Metals (as Pb)	≤ 10 ppm
Arsenic (As)	≤ 3 ppm
Lead (Pb)	≤ 5 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.