Magnesium hydroxide

Name: Magnesium hydroxide
Brand: SIAL

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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Product Name

Magnesium hydroxide, BioUltra, ≥99.0% (KT)

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 (SO₄^2-): ≤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 A_max: 0.030
λ: 280 nm A_max: 0.025

Quality Level

200

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Show Differences

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This Item	1374260	1374260	310093
Sigma-Aldrich 63081 Magnesium hydroxide	USP 1374260 Magnesium hydroxide	USP 1374260 Magnesium hydroxide	Sigma-Aldrich 310093 Magnesium hydroxide
assay ≥99.0% (KT)	assay -	assay -	assay 95%
solubility 5 M HCl: 0.1 M at 20 °C, clear, colorless	solubility -	solubility -	solubility -
Quality Level 200	Quality Level -	Quality Level -	Quality Level 200
cation traces As: ≤0.1 mg/kg, Bi: ≤50 mg/kg, Cd: ≤5 mg/kg, Cr: ≤5 mg/kg, Fe: ≤100 mg/kg, Li: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤100 mg/kg, Sr: ≤10 mg/kg, Ba: ≤10 mg/kg, Co: ≤5 mg/kg, K: ≤50 mg/kg, Na: ≤100 mg/kg, Zn: ≤5 mg/kg, Ca: ≤5000 mg/kg, Mn: ≤10 mg/kg, Cu: ≤5 mg/kg, Pb: ≤5 mg/kg	cation traces -	cation traces -	cation traces -
mp 350 °C (lit.)	mp 350 °C (lit.)	mp 350 °C (lit.)	mp 350 °C (lit.)
impurities Insoluble matter, passes filter test	impurities -	impurities -	impurities -
assay ≥99.0% (KT)	assay -	assay -	assay 95%
solubility 5 M HCl: 0.1 M at 20 °C, clear, colorless	solubility -	solubility -	solubility -
Quality Level 200	Quality Level -	Quality Level -	Quality Level 200
cation traces As: ≤0.1 mg/kg, Bi: ≤50 mg/kg, Cd: ≤5 mg/kg, Cr: ≤5 mg/kg, Fe: ≤100 mg/kg, Li: ≤5 mg/kg, Mo: ≤5 mg/kg, Ni: ≤100 mg/kg, Sr: ≤10 mg/kg, Ba: ≤10 mg/kg, Co: ≤5 mg/kg, K: ≤50 mg/kg, Na: ≤100 mg/kg, Zn: ≤5 mg/kg, Ca: ≤5000 mg/kg, Mn: ≤10 mg/kg, Cu: ≤5 mg/kg, Pb: ≤5 mg/kg	cation traces -	cation traces -	cation traces -
mp 350 °C (lit.)	mp 350 °C (lit.)	mp 350 °C (lit.)	mp 350 °C (lit.)
impurities Insoluble matter, passes filter test	impurities -	impurities -	impurities -

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).

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.[1]

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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Biochemical and clinical effects of the prophylactic treatment of renal calcium stones with magnesium hydroxide.

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

Effect of magnesium hydroxide administration on iron absorption after a supratherapeutic dose of ferrous sulfate in human volunteers: a randomized controlled trial.

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

Effect of antacid and H2 receptor antagonists on the intestinal absorption of folic acid.

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

Investigation of antibacterial activity and related mechanism of a series of nano-Mg(OH)₂.

Xiaohong Pan et al.

ACS applied materials & interfaces, 5(3), 1137-1142 (2013-01-11)

Here we reported the antibacterial effect and related mechanism of three nano-Mg(OH)(2) slurries using Escherichia coli as model bacteria. X-ray diffraction (XRD), scanning electron microscopy (SEM) and laser particle size analysis revealed that the as-synthesized Mg(OH)(2)_(MgCl2), Mg(OH)(2)_(MgSO4) and Mg(OH)(2)_(MgO) are

Gastric cytoprotection beyond prostaglandins: cellular and molecular mechanisms of gastroprotective and ulcer healing actions of antacids.

Andrzej Tarnawski et al.

Current pharmaceutical design, 19(1), 126-132 (2012-09-07)

This article updates current views on gastric mucosal defense, injury, protection and ulcer healing with a focus on mucosal protective and ulcer healing actions of antacids. The gastric mucosa is continuously exposed to a variety of noxious factors, both endogenous

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