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M5421

Sigma-Aldrich

Magnesium hydroxide

BioXtra, ≥95%

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Synonym(s):
Magnesium dihydroxide, Mg(OH)2
Linear Formula:
Mg(OH)2
CAS Number:
1309-42-8
Molecular Weight:
58.32
EC Number:
215-170-3
MDL number:
MFCD00011104
UNSPSC Code:
12352200
PubChem Substance ID:
24896999
NACRES:
NA.21

product line

BioXtra

Assay

≥95%

impurities

≤0.01% Phosphorus (P)
≤0.1% Insoluble matter

mp

350 °C (lit.)

solubility

5 M HCl: 0.1 M, clear, yellow

anion traces

chloride (Cl-): ≤0.5%

cation traces

Al: ≤0.02%
Ca: ≤0.7%
Cu: ≤0.0005%
Fe: ≤0.02%
K: ≤0.005%
NH4+: ≤0.05%
Na: ≤0.05%
Pb: ≤0.001%
Zn: ≤0.002%

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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Application

Magnesium hydroxide has been used in the synthesis of brucite.

Biochem/physiol Actions

Magnesium hydroxide is a flame retardant. Magnesium hydroxide is commonly used as an antacid which has a long-lasting effect. The liquid formulation of magnesium hydroxide is called milk of magnesia. It is used as a laxative. It is used in the treatment of diarrhea along with aluminium hydroxide. The naturally occurring form of magnesium hydroxide is brucite.

WGK

nwg

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

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