Description

Magnesium Hydroxide Sulfate Trihydrate is a specialized inorganic compound with a unique layered double hydroxide structure. This material is valued for its dual functionality as a source of magnesium and as a flame retardant and smoke suppressant additive. It is primarily utilized in industries requiring high-performance, halogen-free flame retardancy, such as polymer manufacturing, wire and cable, and construction materials. Its controlled release properties also make it suitable for specialized agricultural and environmental applications.

Application

• Halogen-Free Flame Retardant: A key component in polyolefins (PP, PE), PVC, rubber, and other polymers for wire & cable, building materials, and automotive parts.
• Smoke Suppressant: Reduces smoke emission during combustion in plastics and elastomers, enhancing fire safety.
• Acid Scavenger/Stabilizer: Used in polymer processing to neutralize acidic by-products and improve thermal stability.
• Specialty Fertilizer & Soil Amendment: Provides a slow-release source of magnesium and sulfur for agricultural and horticultural use.
• Wastewater Treatment: Acts as a precipitating agent for heavy metals and phosphate removal.
• Ceramic & Refractory Precursor: Serves as a raw material in the production of specialty ceramics and refractory compounds.

Basic Information

Item	Details
Product Name	Magnesium Hydroxide Sulfate Trihydrate
CAS No.	98668-15-6
Molecular Formula	Typically represented as Mg(OH)2·MgSO4·3H2O or related variants
Molecular Weight	Contact for details
Synonyms	Magnesium Hydroxide Sulfate Hydrate; Magnesium Hydroxysulfate; Basic Magnesium Sulfate; Flame Retardant Magnesium Compound; MHS; Magnesium Sulfate Hydroxide; Hydrated Basic Magnesium Sulfate; LDH (Layered Double Hydroxide) based on Mg
EINECS	Contact for details

Quality Control

Our Magnesium Hydroxide Sulfate Trihydrate is manufactured under a strict quality management system. Each batch undergoes comprehensive analysis to ensure consistency in chemical composition, particle size distribution, and thermal decomposition behavior. Certificates of Analysis (COA) documenting key parameters such as magnesium content, sulfate content, loss on ignition, and heavy metal limits are available upon request. We adhere to relevant industrial standards for flame retardant additives.

Storage

Preserve in a tightly closed container, protected from light. This material is hygroscopic (moisture-sensitive) and must be stored in a cool, dry, and well-ventilated area at room temperature (15-25°C). Keep the container tightly sealed when not in use to prevent absorption of atmospheric moisture and CO2, which can affect product performance.

Specification

Item	Specification
Appearance	White fine powder
Identification (IR/XRD)	Complies
Assay (as MgO)	Contact for details
Loss on Ignition (LOI)	Contact for details
Particle Size (D50)	Customizable (e.g., 1-10 µm)
Moisture Content	< 2.0%
Heavy Metals (as Pb)	< 20 ppm

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