z Magnesium Hydroxide Suppliers & Exporters in Mumbai, India

Magnesium Hydroxide

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Milk of Magnesia

CAS Number:1309‑42‑8

Synonyms:Magnesium hydroxide; Milk of magnesia; Brucite (natural)

Chemical Formula: Mg(OH)₂

Molecular Weight:58.32 g/mol

Product Introduction

A white to off‑white crystalline powder or slurry with low solubility. Used pharmaceutically as an antacid/laxative ("Milk of Magnesia"), industrially as flame retardant, filler, smoke suppressant, and in wastewater neutralization.

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Physical & Chemical Properties

Property Value
Appearance White to off‑white powder/slurry
Odor Odorless
Density ~2.34 g/cm³
Melting Point ~350 °C (decomposes)
Solubility in Water ~0.00064 g/100 mL @ 25 °C
Refractive Index ~1.559
pH (slurry) ~9.5–10.5

Applications

  • Pharmaceutical:Antacid/laxative (Milk of Magnesia).
  • Flame retardant & fillerin plastics and rubber.
  • Environmental use:Neutralizes acid wastewater, flue-gas desulfurization, heavy-metal precipitation.
  • Chemical precursor:To MgO, other magnesium salts; used in pharma and sugar industry.

Safety Notes:

  • Non-combustible; may irritate skin/respiratory system in dust form. OSHA PEL for dust ~5 mg/m³ respirable.

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