Magnesium Stearate

Description

1. 1. Product Overview

   Magnesium Stearate is a high-purity, hydrophobic powder composed of the magnesium salt of stearic acid used as an anticaking, lubricating, and flow-enhancing agent in industrial formulations. Its primary industrial use is to improve powder flow, reduce friction in compounding and tableting processes, and stabilize particulate mixtures across pharmaceutical, polymer, coatings, and rubber supply chains. The product delivers consistent batch-to-batch performance that reduces process downtime, increases equipment throughput, and improves finished-goods uniformity. As a widely accepted functional excipient and process aid, magnesium stearate is strategically important for manufacturers seeking predictable scale-up, regulatory-friendly formulations, and cost-effective production continuity.

   2. Key Specifications & Technical Characteristics

   • Chemical composition: Magnesium di(stearate), chemical formula approximately C36H70MgO4.

   • Active components: Stearate anions bound to magnesium cation; low free fatty acid content.

   • Purity / grade: Industrial/technical grade, typical assay ≥ 98.0% (specification range configurable to customer requirement).

   • Moisture content: Typically ≤ 2.0% (batch-tested).

   • Acid value / free fatty acids: Controlled to industrial specification (typical ≤ 1.5 mg KOH/g).

   • Particle form & color: Fine, free-flowing powder, off-white to white.

   • Typical particle size distribution: D50 in the range 5–25 µm (custom milling available).

   • Bulk density: Approx. 0.35–0.60 g/cm³ (tapped and loose densities provided on certificate of analysis).

   • Solubility: Insoluble in water; dispersible in organic matrices; surface-active hydrophobic behavior.

   • Thermal properties: Stable at typical processing temperatures used in compounding and tableting; decomposition above ~200–250°C depending on matrix.

   • Packaging options: 25 kg multi-wall kraft bags with inner PE liner; 500–1000 kg FIBCs (bulk bags); palletized and shrink-wrapped; ISO tank-compatible packaging for specialty slurry variants.

   • Shelf life / storage: Recommended 24 months when stored in cool, dry, and sealed conditions away from reactive acids and oxidizers.

   • Documentation: Certificate of Analysis (CoA), Safety Data Sheet (SDS), and production traceability available for each lot.

   3. Core Industrial Applications

   • Pharmaceuticals: Tablet and capsule manufacturing as a lubricant to reduce die and punch sticking, improve tablet ejection and ensure content uniformity. Preferred for its inertness and regulatory familiarity in many markets.

   • Polymer & Masterbatches: Release agent and flow improver to reduce friction during extrusion and molding, improving surface finish and reducing scrap rates.

   • Coatings & Paints: Anti-settling and rheology modifier in powder coatings and solvent-borne systems to enhance pigment dispersion and application consistency.

   • Rubber & Elastomers: Processing aid to improve mixing and reduce internal friction, enabling longer production runs and more consistent product properties.

   • Agrochemical Formulations: Flow aid and anti-caking agent in dry mixes and granulated fertilizers, improving handling, dosing, and storage stability.

   • Food & Nutraceuticals (where allowed by local regulations): Glidant and anti-caking agent in powdered blends and compression processes.
     Why this product outperforms alternatives: Magnesium stearate provides a balance of hydrophobicity and fine particulate size that delivers superior lubricity without compromising blend uniformity; it is broadly compatible with common excipients and polymer matrices, often requiring lower dosing than bulkier alternatives, yielding cost and throughput advantages.

   4. Competitive Advantages

   • Quality consistency: Strict in-house QC and third-party testing ensure narrow batch-to-batch variability in assay, particle size, and moisture.

   • Supply reliability: Multiple production lines and secured raw material sourcing reduce single-point failure risk; strategic inventory for continuous supply.

   • Logistics capability: Flexible packaging and palletization suited for sea/air freight, FCL/LCL, and bulk container loads; customs and export documentation support for global B2B customers.

   • Price competitiveness: Economies of scale and optimized supply chains enable competitive unit pricing at bulk quantities without compromising specifications.

   • Sustainability & environmental: Sourced with attention to responsible fatty-acid feedstocks; packaging optimized for recyclability and reduced secondary packaging on bulk shipments (case-by-case transparency available).

   • Technical support: Product datasheets, CoAs, SDS, and application notes provided; on-request small-batch trial samples and technical consultation for formulation optimization and scale-up.

   5. Commercial & Supply Information

   • Minimum order quantity (MOQ): BULK 20MT.

   • Typical loading capacity (MT per container):

     • 20 ft container (max): up to 20 MT (bagged/palletized; depends on pallet configuration).

     • 40 ft container (max): up to 24–26 MT (bagged/palletized; optimized loading may reach 26 MT).

     • FIBC/bulk bag loading: variable; typically 16–22 MT per 20 ft depending on bag density and pallet arrangement.
       (Exact loading depends on packaging choice, pallet configuration, and transport regulations; detailed loading plans provided upon order.)