General Information:


Magnesium hydroxide is an inorganic compound with the chemical formula Mg(OH)2. As a suspension in water, it is often called milk of magnesia because of its milk-like appearance. Magnesium Hydroxide is a common antacid drug that is used antioxidant; Magnesium Hydroxide has a composition of Hydrated Magnesium Hydroxide contain not less than 95.0 per cent and Not more than 100.5 per cent of Mg (OH)2.

Molecular Structure:



  • CAS No.: 1309-42-8
  • Molecular Formula: Mg(OH)2
  • Molecular Weight: 58.33
  • Synonyms: Milk of Magnesia, Mint-O-Mag, Magnesia Maga

Physical Property:

  • Physical state: White powder, Odorless
  • Melting Point: 350°C (decomposes)
  • Solubility: Practically insoluble in water
  • PH: 9.5 – 10.5 (5 % Aqueous solution)
  • Flash point: will not burn

Application & Use:

Widely used as an Antacid in many Formulation. Also used as intermediate for obtaining magnesium metal, residual fuel additive, sulfite pulp, uranium processing, dentifrices, in food as alkali, drying agent, color retention agent, frozen desserts. Also widely used in Effluent Treatment Plant especially where the Effluents is very much alkaline in nature.

Advantage and Disadvantage:

You may someday need to take magnesium hydroxide to relieve symptoms of constipation.There can be side effects from using magnesium hydroxide, and the most common side effect is diarrhea. With diarrhea can come abdominal cramps, discomfort, and even vomiting.

Shelf Life

Expiry:5 Years after date of manufacture

Quality Assurance / Certificate

WHO-GMP: Par Drugs And Chemicals Limited is WHO GMP Certified.
(Issued by Food & Drug Control Administration)
Note: Above Certificate is available upon request.

Certificate of Compliance

GMO: The Product does not contain any Genetically Modified Organisms (GMO) of raw materials used in manufacturing of the same are also not genetically modified.
Non-Irradiation: The product was never subjected to any kind of ionized irradiation and contains no radioactivity not even in minor amounts.
Allergens: The product does not contain any of the below mentioned allergens:
Cereals containing Gluten, Crustaceans, Eggs, Fish, Peanuts, Treenuts, Soybeans, Milk, Sesame seeds, Sulphur Dioxide ands sulphites (concentration > 10 mg/kg), Lupin, Molluscs.
TSE/BSE: The Product is not derived from animal/plant origin & hence this product is free from Transmissible Spongiform Encephalopathy (TSE) and Bovine Spongiform Encephalopathy (BSE). It is synthetically derived
Residual Solvent: Class1, Class 2, Class 3 & Table 4 solvents are not used in the production of our product.
Vegetarians / Vegans: Our product is suitable for consumption by vegetarians and vegans.

Storage Recommendations

Store Protected From Moisture


20 & 25 kg net weight packed in LDPE Liner follow by HDPE Woven Bag.


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