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310093

Sigma-Aldrich

Magnesium hydroxide

reagent grade, 95%

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Linear Formula:
Mg(OH)2
CAS Number:
Molecular Weight:
58.32
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.55

grade

reagent grade

Quality Level

Assay

95%

form

powder

pH

9.5-10.5

mp

350 °C (lit.)

SMILES string

O[Mg]O

InChI

1S/Mg.2H2O/h;2*1H2/q+2;;/p-2

InChI key

VTHJTEIRLNZDEV-UHFFFAOYSA-L

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General description

Magnesium hydroxide is a low corrosive inorganic compound that is widely used as an acid- and halogen-free flame retardant and smoke suppressant in various polymeric matrices in the plastics industry. It is a magnesium oxide intermediate that can be used in refractory, water and wastewater treatment, fuel gas desulfurization, pulp and paper industry, and as a fertilizer additive.

Application

Magnesium hydroxide can be used as:
  • A filler to prepare kenaf fiber-reinforced polymer composites.
  • A pH-adjusting agent in the production of succinic acid.

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Flame retardant effects of magnesium hydroxide.
Rothon RN and Hornsby PR.
Polymer Degradation and Stability, 54(2), 383-385 (1996)
Flame retardant and mechanical properties of natural fibre-PP composites containing magnesium hydroxide.
Sain M, et al.
Polymer Degradation and Stability, 83(2), 363-367 (2004)
Synthesis of magnesium hydroxide and its calcinates by a precipitation method with the use of magnesium sulfate and poly (ethylene glycols).
Pilarska A, et al.
Powder Technology, 235, 148-157 (2013)
Production of magnesium hydroxide from magnesium silicate for the purpose of CO2 mineralisation-Part 1: Application to Finnish serpentinite.
Nduagu E, et al.
Minerals Engineering, 30, 75-86 (2012)
Magnesium hydroxide reinforced kenaf fibers/epoxy hybrid composites: Mechanical and thermomechanical properties
Saba N, et al.
Construction Building Materials, 201, 138-148 (2019)

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