Magnesium Silicate

Synthetic Magnesium Silicate, Magnesium Monosilicate, E553(a).

CAS
1343-88-0
EC
215-681-1
Sectors
Food & Nutrition, Pharma & Healthcare

Magnesium Silicate (CAS 1343-88-0) is a synthetic, chemically inert silicate adsorbent in the form of a white to off-white fine powder, valued for its high surface area and porous structure, and used as an anti-caking agent, glidant and refining adsorbent for edible oils and biodiesel. Available in Pharma Grade and Food Grade, it serves as an essential functional filler and anti-caking agent in sensitive formulations.

The compound exhibits a high surface area and porous structure, making it ideal for the removal of polar impurities during industrial filtration processes. Its chemically inert nature ensures compatibility with a wide range of active ingredients without compromising product stability.

As a synthetic adsorbent, it is widely utilized for refining edible oils and biodiesel by effectively removing soaps, metals, and free fatty acids. Its consistent particle size distribution allows for predictable performance in both batch and continuous industrial operations.

Typical Properties

Molecular weight100.39 g/mol
Appearancewhite to off-white fine powder
FormPowder
ColorWhite to off-white
Odorat 100.00?%. odorless
Melting point1910°C
Density3.21
Water solubilityInsoluble in water.
pH9.5 (100g/l, H2O, 20°C)(slurry)
GHS signal wordDanger · Corrosive, Irritant / harmful
HS code28399000
Grades availableFood Grade, Pharma Grade

Typical literature values for identification; lot-specific results are stated on the certificate of analysis (COA) and the safety data sheet (SDS) that accompany every delivery.

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Magnesium Silicate

Applications
  • Oil Refining: Used as a high-performance adsorbent to remove impurities, odors, and colors from vegetable oils and frying fats.
  • Pharmaceutical Tableting: Functions as a Glidant to improve powder flow during high-speed compression and prevent sticking in die cavities.
  • Food Processing: Employed as an effective Anti-caking Agent in powdered food products to maintain texture and prevent moisture-induced clumping.
Safety & Risks

Generally recognized as safe (GRAS), but inhalation of dust should be avoided. Use N95 Dust Masks and Safety Goggles during handling to prevent respiratory and eye irritation. Hazard Classifications: Not classified as a dangerous substance under GHS.

Packaging

Available in 20 kg or 25 kg Multi-wall Paper Bags, and 500 kg Big Bags (FIBC) for large-scale industrial use.