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Merck
CN

63081

Magnesium hydroxide

BioUltra, ≥99.0% (KT)

Synonym(s):

Magnesium dihydroxide, Mg(OH)2

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About This Item

Linear Formula:
Mg(OH)2
CAS Number:
1309-42-8
Molecular Weight:
58.32
NACRES:
NA.25
PubChem Substance ID:
329759774
UNSPSC Code:
12352303
EC Number:
215-170-3
MDL number:
MFCD00011104
Assay:
≥99.0% (KT)
Grade:
reagent grade
Solubility:
5 M HCl: 0.1 M at 20 °C, clear, colorless

Key Documents

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InChI key

VTHJTEIRLNZDEV-UHFFFAOYSA-L

InChI

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

SMILES string

O[Mg]O

grade

reagent grade

product line

BioUltra

assay

≥99.0% (KT)

impurities

Insoluble matter, passes filter test

mp

350 °C (lit.)

solubility

5 M HCl: 0.1 M at 20 °C, clear, colorless

anion traces

chloride (Cl-): ≤500 mg/kg, sulfate (SO42-): ≤1000 mg/kg

cation traces

As: ≤0.1 mg/kg, Ba: ≤10 mg/kg, Bi: ≤50 mg/kg, Ca: ≤5000 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤100 mg/kg, K: ≤50 mg/kg, Li: ≤5 mg/kg, Mn: ≤10 mg/kg, Mo: ≤5 mg/kg, Na: ≤100 mg/kg, Ni: ≤100 mg/kg, Pb: ≤5 mg/kg, Sr: ≤10 mg/kg, Zn: ≤5 mg/kg

λ

0.1 M in 5 M HCl

UV absorption

λ: 260 nm Amax: 0.030, λ: 280 nm Amax: 0.025

Quality Level

200

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General description

Magnesium hydroxide is commonly used as a non-systemic antacid for treating acid-peptic disorders. It helps in the treatment kidney stones patients by reducing the recurrence rate.

Application

Magnesium hydroxide is used as a dietary supplement to study its effects on the absorbtion of factors such as folic acid and iron and the release of the peptide hormone cholecystokinin (CCK).

Storage Class

13 - Non Combustible Solids

wgk

nwg

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Certificates of Analysis (COA)

Lot/Batch Number
BCCN2762
BCCM1229
BCCJ8028
BCCK9927
BCCH8744

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G Johansson et al.
The Journal of urology, 124(6), 770-774 (1980-12-01)
Prophylactic treatment with magnesium hydroxide ws instituted in 56 consecutive cases with renal calcium stones. The patients had been investigated previously with regard to the magnesium metabolism. The urinary magnesium excretion increased promptly and remained on a higher level during
B K Snyder et al.
Annals of emergency medicine, 33(4), 400-405 (1999-03-27)
Animal models have demonstrated that administration of magnesium hydroxide (MgOH) decreases serum iron levels after an iron overdose. We designed this study to determine the effect of MgOH administration on iron absorption and adverse effects after a supratherapeutic dose of
R M Russell et al.
The Journal of laboratory and clinical medicine, 112(4), 458-463 (1988-10-01)
Intestinal folic acid transport is a saturable process with a pH optimum of 5.5 to 6.0. Because of the possible effects of antacids and acid-lowering drugs on the pH of the proximal small intestine, the influence of these drugs on
Francys K V Moreira et al.
Carbohydrate polymers, 92(2), 1743-1751 (2013-02-13)
In this paper the mechanical reinforcement of nano-sized brucite, Mg(OH)(2) in a series of bionanocomposite films based on starch was investigated. Brucite nanoplates with an aspect ratio of 9.25 were synthesized by wet precipitation and incorporated into starch matrices at
Guang Liu et al.
Nanoscale, 5(3), 1074-1081 (2012-12-21)
Highly crumpled graphene nanosheets (GNS) with a BET surface area as high as 1159 m(2) g(-1) was fabricated by a thermal exfoliation method. A systematic investigation was performed on the hydrogen sorption properties of MgH(2)-5 wt% GNS nanocomposites acquired by
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